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docs/en/get-started-cmake/get-started-pico-kit-v3.rst
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ESP32-PICO-KIT V3 Getting Started Guide (CMake)
===============================================
:link_to_translation:`zh_CN:[中文]`
This user guide shows how to get started with the ESP32-PICO-KIT V3 mini development board. For description of other versions of the ESP32-PICO-KIT check :doc:`../hw-reference/index`.
This guide shows how to get started with the ESP32-PICO-KIT V3 mini development board. For the description of other ESP32-PICO-KIT versions, please check :doc:`../hw-reference/index`.
What You Need
-------------
* 1 × ESP32-PICO-KIT V3 mini development board
* 1 × USB A / Micro USB B cable
* 1 × PC loaded with Windows, Linux or Mac OS
* ESP32-PICO-KIT V3 mini development board
* USB 2.0 A to Micro B cable
* Computer running Windows, Linux, or macOS
If you want to start using this board right now, go directly to Section `Start Application Development`_.
You can skip the introduction sections and go directly to Section `Start Application Development`_.
Overview
--------
ESP32-PICO-KIT V3 is a mini development board based on the ESP32-PICO-D4 SIP module produced by `Espressif <https://espressif.com>`_. All the IO signals and system power on ESP32-PICO-D4 are led out through two standard 20 pin x 0.1" pitch headers on both sides for easy interfacing. The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the development board to a PC's USB port for downloads and debugging.
ESP32-PICO-KIT V3 is an ESP32-based mini development board produced by `Espressif <https://espressif.com>`_. The core of this board is ESP32-PICO-D4 - a System-in-Package (SiP) module.
The development board features a USB-UART Bridge circuit, which allows developers to connect the board to a computer's USB port for flashing and debugging.
All the IO signals and system power on ESP32-PICO-D4 are led out to two rows of 20 x 0.1" header pads on both sides of the development board for easy access.
Functional Description
----------------------
The following list and figure below describe key components, interfaces and controls of ESP32-PICO-KIT V3 board.
ESP32-PICO-D4
Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V3 board. The complete system of the ESP32 chip has been integrated into the SIP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
USB-UART Bridge
A single chip USB-UART bridge provides up to 1 Mbps transfers rates.
I/O
All the pins on ESP32-PICO-D4 are broken out to the pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
Micro USB Port
USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT V3.
EN Button
Reset button; pressing this button resets the system.
BOOT Button
Holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-KIT V3 board.
.. figure:: ../../_static/esp32-pico-kit-v3-layout.jpg
:align: center
@ -45,6 +37,28 @@ BOOT Button
ESP32-PICO-KIT V3 board layout
Below is the description of the items identified in the figure starting from the top left corner and going clockwise.
================== =================================================================================================================================
Key Component Description
================== =================================================================================================================================
ESP32-PICO-D4 Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V3 board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the SiP module, requiring only an external antenna with LC matching network, decoupling capacitors, and a pull-up resistor for EN signals to function properly.
LDO 5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART bridge Single-chip USB-UART bridge provides up to 1 Mbps transfers rates.
Micro USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
Power On LED This red LED turns on when power is supplied to the board.
I/O All the pins on ESP32-PICO-D4 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
BOOT Button Download button. Holding down **Boot** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
EN Button Reset button.
================== =================================================================================================================================
Start Application Development
-----------------------------

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docs/en/get-started-cmake/get-started-pico-kit.rst
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ESP32-PICO-KIT V4 Getting Started Guide (CMake)
===============================================
This user guide shows how to get started with the ESP32-PICO-KIT V4 mini development board. For description of other versions of the ESP32-PICO-KIT check :doc:`../hw-reference/index`.
What You Need
-------------
* 1 × :ref:`ESP32-PICO-KIT V4 mini development board <get-started-pico-kit-v4-board-front-cmake>`
* 1 × USB A / Micro USB B cable
* 1 × PC loaded with Windows, Linux or Mac OS
If you want to start using this board right now, go directly to Section `Start Application Development`_.
Overview
--------
ESP32-PICO-KIT V4 is a mini development board produced by `Espressif <https://espressif.com>`_. At the core of this board is the ESP32-PICO-D4, a System-in-Package (SIP) module with complete Wi-Fi and Bluetooth functionalities. Comparing to other ESP32 chips, the ESP32-PICO-D4 integrates several peripheral components in one single package, that otherwise would need to be installed separately. This includes a 40 MHz crystal oscillator, 4 MB flash, filter capacitors and RF matching links in. This greatly reduces quantity and costs of additional components, subsequent assembly and testing cost, as well as overall product complexity.
The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the board to a PC's USB port for downloads and debugging.
For easy interfacing, all the IO signals and system power on ESP32-PICO-D4 are led out through two rows of 20 x 0.1" pitch header pads on both sides of the development board. To make the ESP32-PICO-KIT V4 fit into mini breadboards, the header pads are populated with two rows of 17 pin headers. Remaining 2 x 3 pads grouped on each side of the board besides the antenna are not populated. The remaining 2 x 3 pin headers may be soldered later by the user.
.. note::
The 2 x 3 pads not populated with pin headers are internally connected to the flash memory embedded in the ESP32-PICO-D4 SIP module. For more details see module's datasheet in `Related Documents`_.
The board dimensions are 52 x 20.3 x 10 mm (2.1" x 0.8" x 0.4"), see Section `Board Dimensions`_. An overview functional block diagram is shown below.
.. figure:: ../../_static/esp32-pico-kit-v4-functional-block-diagram.png
:align: center
:alt: ESP32-PICO-KIT V4 functional block diagram
:figclass: align-center
ESP32-PICO-KIT V4 functional block diagram
Functional Description
----------------------
The following list and figure below describe key components, interfaces and controls of ESP32-PICO-KIT V4 board.
ESP32-PICO-D4
Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V4 board. The complete system of the ESP32 chip has been integrated into the SIP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
LDO
5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART Bridge
A single chip USB-UART bridge provides up to 1 Mbps transfers rates.
Micro USB Port
USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT V4.
5V Power On LED
This light emitting diode lits when the USB or an external 5V power supply is applied to the board. For details see schematic in `Related Documents`_.
I/O
All the pins on ESP32-PICO-D4 are broken out to the pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details please see Section `Pin Descriptions`_.
BOOT Button
Holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
EN Button
Reset button; pressing this button resets the system.
.. _get-started-pico-kit-v4-board-front-cmake:
.. figure:: ../../_static/esp32-pico-kit-v4-layout.jpg
:align: center
:alt: ESP32-PICO-KIT V4 board layout
:figclass: align-center
ESP32-PICO-KIT V4 board layout
Power Supply Options
--------------------
There following options are available to provide power supply to the ESP32-PICO-KIT V4:
1. Micro USB port, this is default power supply connection
2. 5V / GND header pins
3. 3V3 / GND header pins
.. warning::
Above options are mutually exclusive, i.e. the power supply may be provided using only one of the above options. Attempt to power the board using more than one connection at a time may damage the board and/or the power supply source.
Start Application Development
-----------------------------
Before powering up your ESP32-PICO-KIT V4, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step-cmake` will quickly help you set up the development environment and then flash an example project onto your board.
Pin Descriptions
----------------
The two tables below provide the **Name** and **Function** of I/O headers on both sides of the board, see :ref:`get-started-pico-kit-v4-board-front-cmake`. The pin numbering and header names are the same as on a schematic in `Related Documents`_.
Header J2
"""""""""
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_SD1 (FSD1) I/O | GPIO8, SD_DATA1, SPID, HS1_DATA1 :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2CTS
2 FLASH_SD3 (FSD3) I/O | GPIO7, SD_DATA0, SPIQ, HS1_DATA0 :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2RTS
3 FLASH_CLK (FCLK) I/O | GPIO6, SD_CLK, SPICLK, HS1_CLK :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U1CTS
4 IO21 I/O | GPIO21, VSPIHD, EMAC_TX_EN
5 IO22 I/O | GPIO22, VSPIWP, U0RTS, EMAC_TXD1
6 IO19 I/O | GPIO19, VSPIQ, U0CTS, EMAC_TXD0
7 IO23 I/O | GPIO23, VSPID, HS1_STROBE
8 IO18 I/O | GPIO18, VSPICLK, HS1_DATA7
9 IO5 I/O | GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
10 IO10 I/O | GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD
11 IO9 I/O | GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD
12 RXD0 I/O | GPIO3, U0RXD :ref:`(4) <get-started-pico-kit-v4-pin-notes-cmake>` , CLK_OUT2
13 TXD0 I/O | GPIO1, U0TXD :ref:`(4) <get-started-pico-kit-v4-pin-notes-cmake>` , CLK_OUT3, EMAC_RXD2
14 IO35 I | ADC1_CH7, RTC_GPIO5
15 IO34 I | ADC1_CH6, RTC_GPIO4
16 IO38 I | GPIO38, ADC1_CH2, ADC_PRE_AMP :ref:`(2b) <get-started-pico-kit-v4-pin-notes-cmake>` , RTC_GPIO2
17 IO37 I | GPIO37, ADC_PRE_AMP :ref:`(2a) <get-started-pico-kit-v4-pin-notes-cmake>` , ADC1_CH1, RTC_GPIO1
18 EN I | CHIP_PU
19 GND P | Ground
20 VDD33 (3V3) P | 3.3V power supply
====== ================= ====== ======================================================
Header J3
"""""""""
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_CS (FCS) I/O | GPIO16, HS1_DATA4 :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2RXD, EMAC_CLK_OUT
2 FLASH_SD0 (FSD0) I/O | GPIO17, HS1_DATA5 :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2TXD, EMAC_CLK_OUT_180
3 FLASH_SD2 (FSD2) I/O | GPIO11, SD_CMD, SPICS0, HS1_CMD :ref:`(1) <get-started-pico-kit-v4-pin-notes-cmake>` , U1RTS
4 SENSOR_VP (FSVP) I | GPIO36, ADC1_CH0, ADC_PRE_AMP :ref:`(2a) <get-started-pico-kit-v4-pin-notes-cmake>` , RTC_GPIO0
5 SENSOR_VN (FSVN) I | GPIO39, ADC1_CH3, ADC_PRE_AMP :ref:`(2b) <get-started-pico-kit-v4-pin-notes-cmake>` , RTC_GPIO3
6 IO25 I/O | GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
7 IO26 I/O | GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
8 IO32 I/O | 32K_XP :ref:`(3a) <get-started-pico-kit-v4-pin-notes-cmake>` , ADC1_CH4, TOUCH9, RTC_GPIO9
9 IO33 I/O | 32K_XN :ref:`(3b) <get-started-pico-kit-v4-pin-notes-cmake>` , ADC1_CH5, TOUCH8, RTC_GPIO8
10 IO27 I/O | GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17
| EMAC_RX_DV
11 IO14 I/O | ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
| HS2_CLK, SD_CLK, EMAC_TXD2
12 IO12 I/O | ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI :ref:`(5) <get-started-pico-kit-v4-pin-notes-cmake>` , HSPIQ,
| HS2_DATA2, SD_DATA2, EMAC_TXD3
13 IO13 I/O | ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID,
| HS2_DATA3, SD_DATA3, EMAC_RX_ER
14 IO15 I/O | ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0
| HS2_CMD, SD_CMD, EMAC_RXD3
15 IO2 I/O | ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP,
| HS2_DATA0, SD_DATA0
16 IO4 I/O | ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD,
| HS2_DATA1, SD_DATA1, EMAC_TX_ER
17 IO0 I/O | ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1
| EMAC_TX_CLK
18 VDD33 (3V3) P | 3.3V power supply
19 GND P | Ground
20 EXT_5V (5V) P | 5V power supply
====== ================= ====== ======================================================
.. _get-started-pico-kit-v4-pin-notes-cmake:
**Notes to** `Pin Descriptions`_
1. This pin is connected to the flash pin of ESP32-PICO-D4.
2. When used as ADC_PRE_AMP, connect 270 pF capacitors between: (a) SENSOR_VP and IO37, (b) SENSOR_VN and IO38.
3. 32.768 kHz crystal oscillator: (a) input, (b) output.
4. This pin is connected to the pin of the USB bridge chip on the board.
5. The operating voltage of ESP32-PICO-KIT’s embedded SPI flash is 3.3V. Therefore, the strapping pin MTDI should hold bit ”0” during the module power-on reset.
Board Dimensions
----------------
.. figure:: ../../_static/esp32-pico-kit-v4-dimensions-back.jpg
:align: center
:alt: ESP32-PICO-KIT V4 dimensions - back
:figclass: align-center
ESP32-PICO-KIT V4 dimensions - back
.. figure:: ../../_static/esp32-pico-kit-v4-dimensions-side.jpg
:align: center
:alt: ESP32-PICO-KIT V4 dimensions - side
:figclass: align-center
ESP32-PICO-KIT V4 dimensions - side
Related Documents
-----------------
* `ESP32-PICO-KIT V4 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v4_schematic.pdf>`_ (PDF)
* `ESP32-PICO-D4 Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)
* :doc:`../hw-reference/index`
.. toctree::
:hidden:
get-started-pico-kit-v3
ESP32-PICO-KIT V4 / V4.1 Getting Started Guide
==============================================
:link_to_translation:`zh_CN:[中文]`
This guide shows how to get started with the ESP32-PICO-KIT V4 / V4.1 mini development board. For the description of other ESP32-PICO-KIT versions, please check :doc:`../hw-reference/index`.
This particular description covers ESP32-PICO-KIT V4 and V4.1. The difference is the upgraded USB-UART bridge from CP2102 in V4 with up to 1 Mbps transfer rates to CP2102N in V4.1 with up to 3 Mbps transfer rates.
What You Need
-------------
* :ref:`ESP32-PICO-KIT mini development board <get-started-pico-kit-v4-board-front-cmake>`
* USB 2.0 A to Micro B cable
* Computer running Windows, Linux, or macOS
You can skip the introduction sections and go directly to Section `Start Application Development`_.
Overview
--------
ESP32-PICO-KIT is an ESP32-based mini development board produced by `Espressif <https://espressif.com>`_.
The core of this board is ESP32-PICO-D4 - a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth functionalities. Compared to other ESP32 modules, ESP32-PICO-D4 integrates the following peripheral components in one single package, which otherwise would need to be installed separately:
- 40 MHz crystal oscillator
- 4 MB flash
- Filter capacitors
- RF matching links
This setup reduces the costs of additional external components as well as the cost of assembly and testing and also increases the overall usability of the product.
The development board features a USB-UART Bridge circuit which allows developers to connect the board to a computer's USB port for flashing and debugging.
All the IO signals and system power on ESP32-PICO-D4 are led out to two rows of 20 x 0.1" header pads on both sides of the development board for easy access. For compatibility with Dupont wires, 2 x 17 header pads are populated with two rows of male pin headers. The remaining 2 x 3 header pads beside the antenna are not populated. These pads may be populated later by the user if required.
.. note::
1. The 2 x 3 pads not populated with pin headers are connected to the flash memory embedded in the ESP32-PICO-D4 SiP module. For more details see module's datasheet in `Related Documents`_.
2. ESP32-PICO-KIT comes with male headers by default.
Functionality Overview
----------------------
The block diagram below shows the main components of ESP32-PICO-KIT and their interconnections.
.. figure:: ../../_static/esp32-pico-kit-v4-functional-block-diagram.png
:align: center
:alt: ESP32-PICO-KIT functional block diagram
:figclass: align-center
ESP32-PICO-KIT block diagram
Functional Description
----------------------
The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-KIT board.
.. _get-started-pico-kit-v4-board-front-cmake:
.. figure:: ../../_static/esp32-pico-kit-v4.1-f-layout.jpeg
:align: center
:alt: ESP32-PICO-KIT board layout
:figclass: align-center
ESP32-PICO-KIT board layout
Below is the description of the items identified in the figure starting from the top left corner and going clockwise.
================== =================================================================================================================================
Key Component Description
================== =================================================================================================================================
ESP32-PICO-D4 Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the SiP module, requiring only an external antenna with LC matching network, decoupling capacitors, and a pull-up resistor for EN signals to function properly.
LDO 5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART bridge Single-chip USB-UART bridge: CP2102 in V4 provides up to 1 Mbps transfer rates and CP2102N in V4.1 offers up to 3 Mbps transfers rates.
Micro USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
5V Power On LED This red LED turns on when power is supplied to the board. For details, see the schematics in `Related Documents`_.
I/O All the pins on ESP32-PICO-D4 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details, please see Section `Pin Descriptions`_.
BOOT Button Download button. Holding down **Boot** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
EN Button Reset button.
================== =================================================================================================================================
Power Supply Options
--------------------
There are three mutually exclusive ways to provide power to the board:
* Micro USB port, default power supply
* 5V / GND header pins
* 3V3 / GND header pins
.. warning::
The power supply must be provided using **one and only one of the options above**, otherwise the board and/or the power supply source can be damaged.
Pin Descriptions
----------------
The two tables below provide the **Name** and **Function** of I/O header pins on both sides of the board, see :ref:`get-started-pico-kit-v4-board-front-cmake`. The pin numbering and header names are the same as in the schematic given in `Related Documents`_.
Header J2
"""""""""
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_SD1 (FSD1) I/O | GPIO8, SD_DATA1, SPID, HS1_DATA1 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2CTS
2 FLASH_SD3 (FSD3) I/O | GPIO7, SD_DATA0, SPIQ, HS1_DATA0 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2RTS
3 FLASH_CLK (FCLK) I/O | GPIO6, SD_CLK, SPICLK, HS1_CLK :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U1CTS
4 IO21 I/O | GPIO21, VSPIHD, EMAC_TX_EN
5 IO22 I/O | GPIO22, VSPIWP, U0RTS, EMAC_TXD1
6 IO19 I/O | GPIO19, VSPIQ, U0CTS, EMAC_TXD0
7 IO23 I/O | GPIO23, VSPID, HS1_STROBE
8 IO18 I/O | GPIO18, VSPICLK, HS1_DATA7
9 IO5 I/O | GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
10 IO10 I/O | GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD
11 IO9 I/O | GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD
12 RXD0 I/O | GPIO3, U0RXD :ref:`(See 3) <get-started-pico-kit-v4-pin-notes-cmake>` , CLK_OUT2
13 TXD0 I/O | GPIO1, U0TXD :ref:`(See 3) <get-started-pico-kit-v4-pin-notes-cmake>` , CLK_OUT3, EMAC_RXD2
14 IO35 I | ADC1_CH7, RTC_GPIO5
15 IO34 I | ADC1_CH6, RTC_GPIO4
16 IO38 I | GPIO38, ADC1_CH2, RTC_GPIO2
17 IO37 I | GPIO37, ADC1_CH1, RTC_GPIO1
18 EN I | CHIP_PU
19 GND P | Ground
20 VDD33 (3V3) P | 3.3V power supply
====== ================= ====== ======================================================
Header J3
"""""""""
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_CS (FCS) I/O | GPIO16, HS1_DATA4 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2RXD, EMAC_CLK_OUT
2 FLASH_SD0 (FSD0) I/O | GPIO17, HS1_DATA5 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U2TXD, EMAC_CLK_OUT_180
3 FLASH_SD2 (FSD2) I/O | GPIO11, SD_CMD, SPICS0, HS1_CMD :ref:`(See 1) <get-started-pico-kit-v4-pin-notes-cmake>` , U1RTS
4 SENSOR_VP (FSVP) I | GPIO36, ADC1_CH0, RTC_GPIO0
5 SENSOR_VN (FSVN) I | GPIO39, ADC1_CH3, RTC_GPIO3
6 IO25 I/O | GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
7 IO26 I/O | GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
8 IO32 I/O | 32K_XP :ref:`(See 2a) <get-started-pico-kit-v4-pin-notes-cmake>` , ADC1_CH4, TOUCH9, RTC_GPIO9
9 IO33 I/O | 32K_XN :ref:`(See 2b) <get-started-pico-kit-v4-pin-notes-cmake>` , ADC1_CH5, TOUCH8, RTC_GPIO8
10 IO27 I/O | GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17
| EMAC_RX_DV
11 IO14 I/O | ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
| HS2_CLK, SD_CLK, EMAC_TXD2
12 IO12 I/O | ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI :ref:`(See 4) <get-started-pico-kit-v4-pin-notes-cmake>` , HSPIQ,
| HS2_DATA2, SD_DATA2, EMAC_TXD3
13 IO13 I/O | ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID,
| HS2_DATA3, SD_DATA3, EMAC_RX_ER
14 IO15 I/O | ADC2_CH3, TOUCH3, RTC_GPIO13, MTDO, HSPICS0
| HS2_CMD, SD_CMD, EMAC_RXD3
15 IO2 I/O | ADC2_CH2, TOUCH2, RTC_GPIO12, HSPIWP,
| HS2_DATA0, SD_DATA0
16 IO4 I/O | ADC2_CH0, TOUCH0, RTC_GPIO10, HSPIHD,
| HS2_DATA1, SD_DATA1, EMAC_TX_ER
17 IO0 I/O | ADC2_CH1, TOUCH1, RTC_GPIO11, CLK_OUT1
| EMAC_TX_CLK
18 VDD33 (3V3) P | 3.3V power supply
19 GND P | Ground
20 EXT_5V (5V) P | 5V power supply
====== ================= ====== ======================================================
.. _get-started-pico-kit-v4-pin-notes-cmake:
The following notes give more information about the items in the tables above.
1. This pin is connected to the flash pin of ESP32-PICO-D4.
2. 32.768 kHz crystal oscillator:
a) input
b) output
3. This pin is connected to the pin of the USB bridge chip on the board.
4. The operating voltage of ESP32-PICO-KIT’s embedded SPI flash is 3.3V. Therefore, the strapping pin MTDI should hold bit zero during the module power-on reset. If connected, please make sure that this pin is not held up on reset.
Start Application Development
-----------------------------
Before powering up your ESP32-PICO-KIT, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step-cmake` will quickly help you set up the development environment and then flash an example project onto your board.
Board Dimensions
----------------
The dimensions are 52 x 20.3 x 10 mm (2.1" x 0.8" x 0.4").
.. figure:: ../../_static/esp32-pico-kit-v4.1-dimensions-back.jpg
:align: center
:alt: ESP32-PICO-KIT dimensions - back
:figclass: align-center
ESP32-PICO-KIT dimensions - back
.. figure:: ../../_static/esp32-pico-kit-v4-dimensions-side.jpg
:align: center
:alt: ESP32-PICO-KIT V4 dimensions - side
:figclass: align-center
ESP32-PICO-KIT dimensions - side
For the board physical construction details, please refer to its Reference Design listed below.
Related Documents
-----------------
* `ESP32-PICO-KIT V4 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v4_schematic.pdf>`_ (PDF)
* `ESP32-PICO-KIT V4.1 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v4.1_schematic.pdf>`_ (PDF)
* `ESP32-PICO-KIT Reference Design <https://www.espressif.com/en/support/download/documents?keys=ESP32-PICO-KIT+Reference+Design>`_ containing OrCAD schematic, PCB layout, gerbers and BOM
* `ESP32-PICO-D4 Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)
* :doc:`../hw-reference/index`
.. toctree::
:hidden:
get-started-pico-kit-v3

138
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View File

@ -1,61 +1,77 @@
ESP32-PICO-KIT V3 Getting Started Guide
=======================================
This user guide shows how to get started with the ESP32-PICO-KIT V3 mini development board. For description of other versions of the ESP32-PICO-KIT check :doc:`../hw-reference/index`.
What You Need
-------------
* 1 × ESP32-PICO-KIT V3 mini development board
* 1 × USB A / Micro USB B cable
* 1 × PC loaded with Windows, Linux or Mac OS
Overview
--------
ESP32-PICO-KIT V3 is a mini development board based on the ESP32-PICO-D4 SIP module produced by `Espressif <https://espressif.com>`_. All the IO signals and system power on ESP32-PICO-D4 are led out through two standard 20 pin x 0.1" pitch headers on both sides for easy interfacing. The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the development board to a PC's USB port for downloads and debugging.
Functional Description
----------------------
The following list and figure below describe key components, interfaces and controls of ESP32-PICO-KIT V3 board.
ESP32-PICO-D4
Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V3 board. The complete system of the ESP32 chip has been integrated into the SIP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
USB-UART Bridge
A single chip USB-UART bridge provides up to 1 Mbps transfers rates.
I/O
All the pins on ESP32-PICO-D4 are broken out to the pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
Micro USB Port
USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT V3.
EN Button
Reset button; pressing this button resets the system.
BOOT Button
Holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
.. figure:: ../../_static/esp32-pico-kit-v3-layout.jpg
:align: center
:alt: ESP32-PICO-KIT V3 board layout
:figclass: align-center
ESP32-PICO-KIT V3 board layout
Start Application Development
------------------------------
Before powering up your ESP32-PICO-KIT V3, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an example project onto your board.
Related Documents
-----------------
* `ESP32-PICO-KIT V3 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v3_schematic.pdf>`_ (PDF)
* `ESP32-PICO-D4 Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)
* :doc:`../hw-reference/index`
ESP32-PICO-KIT V3 Getting Started Guide
=======================================
:link_to_translation:`zh_CN:[中文]`
This guide shows how to get started with the ESP32-PICO-KIT V3 mini development board. For the description of other ESP32-PICO-KIT versions, please check :doc:`../hw-reference/index`.
What You Need
-------------
* ESP32-PICO-KIT V3 mini development board
* USB 2.0 A to Micro B cable
* Computer running Windows, Linux, or macOS
You can skip the introduction sections and go directly to Section `Start Application Development`_.
Overview
--------
ESP32-PICO-KIT V3 is an ESP32-based mini development board produced by `Espressif <https://espressif.com>`_. The core of this board is ESP32-PICO-D4 - a System-in-Package (SiP) module.
The development board features a USB-UART Bridge circuit, which allows developers to connect the board to a computer's USB port for flashing and debugging.
All the IO signals and system power on ESP32-PICO-D4 are led out to two rows of 20 x 0.1" header pads on both sides of the development board for easy access.
Functional Description
----------------------
The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-KIT V3 board.
.. figure:: ../../_static/esp32-pico-kit-v3-layout.jpg
:align: center
:alt: ESP32-PICO-KIT V3 board layout
:figclass: align-center
ESP32-PICO-KIT V3 board layout
Below is the description of the items identified in the figure starting from the top left corner and going clockwise.
================== =================================================================================================================================
Key Component Description
================== =================================================================================================================================
ESP32-PICO-D4 Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT V3 board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the SiP module, requiring only an external antenna with LC matching network, decoupling capacitors, and a pull-up resistor for EN signals to function properly.
LDO 5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART bridge Single-chip USB-UART bridge provides up to 1 Mbps transfers rates.
Micro USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
Power On LED This red LED turns on when power is supplied to the board.
I/O All the pins on ESP32-PICO-D4 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc.
BOOT Button Download button. Holding down **Boot** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
EN Button Reset button.
================== =================================================================================================================================
Start Application Development
-----------------------------
Before powering up your ESP32-PICO-KIT V3, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an example project onto your board.
Related Documents
-----------------
* `ESP32-PICO-KIT V3 schematic <https://dl.espressif.com/dl/schematics/esp32-pico-kit-v3_schematic.pdf>`_ (PDF)
* `ESP32-PICO-D4 Datasheet <http://espressif.com/sites/default/files/documentation/esp32-pico-d4_datasheet_en.pdf>`_ (PDF)
* :doc:`../hw-reference/index`

163
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View File

@ -2,68 +2,61 @@ ESP32-PICO-KIT V4 / V4.1 Getting Started Guide
==============================================
:link_to_translation:`zh_CN:[中文]`
This user guide shows how to get started with the ESP32-PICO-KIT V4 / V4.1 mini development board. For description of other versions of the ESP32-PICO-KIT check :doc:`../hw-reference/index`.
This guide shows how to get started with the ESP32-PICO-KIT V4 / V4.1 mini development board. For the description of other ESP32-PICO-KIT versions, please check :doc:`../hw-reference/index`.
.. note::
This particular description covers ESP32-PICO-KIT V4 and V4.1. The difference is USB-UART bridge that has been changed from CP2102 in V4 to CP2102N in V4.1. The first provides up to 1 Mbps transfer rates, while the later up to 3 Mbps transfer rates.
This particular description covers ESP32-PICO-KIT V4 and V4.1. The difference is the upgraded USB-UART bridge from CP2102 in V4 with up to 1 Mbps transfer rates to CP2102N in V4.1 with up to 3 Mbps transfer rates.
What You Need
-------------
* 1 × :ref:`ESP32-PICO-KIT mini development board <get-started-pico-kit-v4-board-front>`
* 1 × USB A / Micro USB B cable
* 1 × PC loaded with Windows, Linux or Mac OS
* :ref:`ESP32-PICO-KIT mini development board <get-started-pico-kit-v4-board-front>`
* USB 2.0 A to Micro B cable
* Computer running Windows, Linux, or macOS
If you like to start using this board right now, go directly to section `Start Application Development`_.
You can skip the introduction sections and go directly to Section `Start Application Development`_.
Overview
--------
ESP32-PICO-KIT is a mini development board produced by `Espressif <https://espressif.com>`_. At the core of this board is the ESP32-PICO-D4, a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth functionalities. Comparing to other ESP32 modules, the ESP32-PICO-D4 integrates several peripheral components in one single package, that otherwise would need to be installed separately. This includes a 40 MHz crystal oscillator, a 4 MB flash, filter capacitors and RF matching links in. This greatly reduces quantity and costs of additional components, subsequent assembly and testing cost, as well as overall product complexity.
ESP32-PICO-KIT is an ESP32-based mini development board produced by `Espressif <https://espressif.com>`_.
The development board integrates a USB-UART Bridge circuit, allowing the developers to connect the board to a PC's USB port for downloads and debugging.
The core of this board is ESP32-PICO-D4 - a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth functionalities. Compared to other ESP32 modules, ESP32-PICO-D4 integrates the following peripheral components in one single package, which otherwise would need to be installed separately:
For easy interfacing, all the IO signals and system power on ESP32-PICO-D4 are led out through two rows of 20 x 0.1" pitch header pads on both sides of the development board. To make the ESP32-PICO-KIT easier for Dupont wires, 2 x 17 header pads are populated with two rows of female pin headers. The remaining 2 x 3 header pads grouped on each side of the board besides the antenna are not populated, and may be populated later by the user if required.
- 40 MHz crystal oscillator
- 4 MB flash
- Filter capacitors
- RF matching links
This setup reduces the costs of additional external components as well as the cost of assembly and testing and also increases the overall usability of the product.
The development board features a USB-UART Bridge circuit which allows developers to connect the board to a computer's USB port for flashing and debugging.
All the IO signals and system power on ESP32-PICO-D4 are led out to two rows of 20 x 0.1" header pads on both sides of the development board for easy access. For compatibility with Dupont wires, 2 x 17 header pads are populated with two rows of male pin headers. The remaining 2 x 3 header pads beside the antenna are not populated. These pads may be populated later by the user if required.
.. note::
1. The 2 x 3 pads not populated with female pin headers are internally connected to the flash memory embedded in the ESP32-PICO-D4 SiP module. For more details see module's datasheet in `Related Documents`_.
2. Earlier versions of ESP32-PICO-KIT come with male headers by default.
1. The 2 x 3 pads not populated with pin headers are connected to the flash memory embedded in the ESP32-PICO-D4 SiP module. For more details see module's datasheet in `Related Documents`_.
2. ESP32-PICO-KIT comes with male headers by default.
The board dimensions are 52 x 20.3 x 10 mm (2.1" x 0.8" x 0.4"), see section `Board Dimensions`_. An overview functional block diagram is shown below.
Functionality Overview
----------------------
The block diagram below shows the main components of ESP32-PICO-KIT and their interconnections.
.. figure:: ../../_static/esp32-pico-kit-v4-functional-block-diagram.png
:align: center
:alt: ESP32-PICO-KIT functional block diagram
:figclass: align-center
ESP32-PICO-KIT functional block diagram
ESP32-PICO-KIT block diagram
Functional Description
----------------------
The following list and figure below describe key components, interfaces and controls of ESP32-PICO-KIT board.
ESP32-PICO-D4
Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT board. The complete system of the ESP32 chip has been integrated into the SiP module, requiring only external antenna with LC matching network, decoupling capacitors and pull-up resistors for EN signals to function properly.
LDO
5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART Bridge
A single chip USB-UART bridge: CP2102 in V4 of the board and CP2102N in V4.1. The first provides up to 1 Mbps transfer rates, while the latter up to 3 Mbps transfers rates.
Micro USB Port
USB interface. It functions as the power supply for the board and the communication interface between PC and ESP32-PICO-KIT.
Power On LED
Turns on when the power supply is applied to the board. For details see schematic in `Related Documents`_.
I/O
All the pins on ESP32-PICO-D4 are broken out to the female pin headers on the board. Users can program ESP32 to enable multiple functions such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details please see section `Pin Descriptions`_.
BOOT Button
Holding down the Boot button and pressing the EN button initiates the firmware download mode. Then user can download firmware through the serial port.
EN Button
Reset button: pressing this button resets the system.
The following figure and the table below describe the key components, interfaces, and controls of the ESP32-PICO-KIT board.
.. _get-started-pico-kit-v4-board-front:
@ -74,33 +67,47 @@ EN Button
ESP32-PICO-KIT board layout
Below is the description of the items identified in the figure starting from the top left corner and going clockwise.
================== =================================================================================================================================
Key Component Description
================== =================================================================================================================================
ESP32-PICO-D4 Standard ESP32-PICO-D4 module soldered to the ESP32-PICO-KIT board. The complete ESP32 system on a chip (ESP32 SoC) has been integrated into the SiP module, requiring only an external antenna with LC matching network, decoupling capacitors, and a pull-up resistor for EN signals to function properly.
LDO 5V-to-3.3V Low dropout voltage regulator (LDO).
USB-UART bridge Single-chip USB-UART bridge: CP2102 in V4 provides up to 1 Mbps transfer rates and CP2102N in V4.1 offers up to 3 Mbps transfers rates.
Micro USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
5V Power On LED This red LED turns on when power is supplied to the board. For details, see the schematics in `Related Documents`_.
I/O All the pins on ESP32-PICO-D4 are broken out to pin headers. You can program ESP32 to enable multiple functions, such as PWM, ADC, DAC, I2C, I2S, SPI, etc. For details, please see Section `Pin Descriptions`_.
BOOT Button Download button. Holding down **Boot** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
EN Button Reset button.
================== =================================================================================================================================
Power Supply Options
--------------------
The following options are available to provide power supply to the ESP32-PICO-KIT:
There are three mutually exclusive ways to provide power to the board:
1. Micro USB port, this is default power supply connection
2. 5V / GND header pins
3. 3V3 / GND header pins
* Micro USB port, default power supply
* 5V / GND header pins
* 3V3 / GND header pins
.. warning::
Above options are mutually exclusive, i.e. the power supply may be provided using only one of the above options. Attempt to power the board using more than one connection at a time may damage the board and/or the power supply source.
Start Application Development
-----------------------------
Before powering up your ESP32-PICO-KIT, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an example project onto your board.
The power supply must be provided using **one and only one of the options above**, otherwise the board and/or the power supply source can be damaged.
Pin Descriptions
----------------
The two tables below provide the **Name** and **Function** of I/O female headers on both sides of the board, see :ref:`get-started-pico-kit-v4-board-front`. The pin numbering and header names are the same as on a schematic in `Related Documents`_.
The two tables below provide the **Name** and **Function** of I/O header pins on both sides of the board, see :ref:`get-started-pico-kit-v4-board-front`. The pin numbering and header names are the same as in the schematic given in `Related Documents`_.
Header J2
@ -109,9 +116,9 @@ Header J2
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_SD1 (FSD1) I/O | GPIO8, SD_DATA1, SPID, HS1_DATA1 :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U2CTS
2 FLASH_SD3 (FSD3) I/O | GPIO7, SD_DATA0, SPIQ, HS1_DATA0 :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U2RTS
3 FLASH_CLK (FCLK) I/O | GPIO6, SD_CLK, SPICLK, HS1_CLK :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U1CTS
1 FLASH_SD1 (FSD1) I/O | GPIO8, SD_DATA1, SPID, HS1_DATA1 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U2CTS
2 FLASH_SD3 (FSD3) I/O | GPIO7, SD_DATA0, SPIQ, HS1_DATA0 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U2RTS
3 FLASH_CLK (FCLK) I/O | GPIO6, SD_CLK, SPICLK, HS1_CLK :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U1CTS
4 IO21 I/O | GPIO21, VSPIHD, EMAC_TX_EN
5 IO22 I/O | GPIO22, VSPIWP, U0RTS, EMAC_TXD1
6 IO19 I/O | GPIO19, VSPIQ, U0CTS, EMAC_TXD0
@ -120,12 +127,12 @@ No. Name Type Function
9 IO5 I/O | GPIO5, VSPICS0, HS1_DATA6, EMAC_RX_CLK
10 IO10 I/O | GPIO10, SD_DATA3, SPIWP, HS1_DATA3, U1TXD
11 IO9 I/O | GPIO9, SD_DATA2, SPIHD, HS1_DATA2, U1RXD
12 RXD0 I/O | GPIO3, U0RXD :ref:`(4) <get-started-pico-kit-v4-pin-notes>` , CLK_OUT2
13 TXD0 I/O | GPIO1, U0TXD :ref:`(4) <get-started-pico-kit-v4-pin-notes>` , CLK_OUT3, EMAC_RXD2
12 RXD0 I/O | GPIO3, U0RXD :ref:`(See 3) <get-started-pico-kit-v4-pin-notes>` , CLK_OUT2
13 TXD0 I/O | GPIO1, U0TXD :ref:`(See 3) <get-started-pico-kit-v4-pin-notes>` , CLK_OUT3, EMAC_RXD2
14 IO35 I | ADC1_CH7, RTC_GPIO5
15 IO34 I | ADC1_CH6, RTC_GPIO4
16 IO38 I | GPIO38, ADC1_CH2, ADC_PRE_AMP :ref:`(2b) <get-started-pico-kit-v4-pin-notes>` , RTC_GPIO2
17 IO37 I | GPIO37, ADC_PRE_AMP :ref:`(2a) <get-started-pico-kit-v4-pin-notes>` , ADC1_CH1, RTC_GPIO1
16 IO38 I | GPIO38, ADC1_CH2, RTC_GPIO2
17 IO37 I | GPIO37, ADC1_CH1, RTC_GPIO1
18 EN I | CHIP_PU
19 GND P | Ground
20 VDD33 (3V3) P | 3.3V power supply
@ -138,20 +145,20 @@ Header J3
====== ================= ====== ======================================================
No. Name Type Function
====== ================= ====== ======================================================
1 FLASH_CS (FCS) I/O | GPIO16, HS1_DATA4 :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U2RXD, EMAC_CLK_OUT
2 FLASH_SD0 (FSD0) I/O | GPIO17, HS1_DATA5 :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U2TXD, EMAC_CLK_OUT_180
3 FLASH_SD2 (FSD2) I/O | GPIO11, SD_CMD, SPICS0, HS1_CMD :ref:`(1) <get-started-pico-kit-v4-pin-notes>` , U1RTS
4 SENSOR_VP (FSVP) I | GPIO36, ADC1_CH0, ADC_PRE_AMP :ref:`(2a) <get-started-pico-kit-v4-pin-notes>` , RTC_GPIO0
5 SENSOR_VN (FSVN) I | GPIO39, ADC1_CH3, ADC_PRE_AMP :ref:`(2b) <get-started-pico-kit-v4-pin-notes>` , RTC_GPIO3
1 FLASH_CS (FCS) I/O | GPIO16, HS1_DATA4 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U2RXD, EMAC_CLK_OUT
2 FLASH_SD0 (FSD0) I/O | GPIO17, HS1_DATA5 :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U2TXD, EMAC_CLK_OUT_180
3 FLASH_SD2 (FSD2) I/O | GPIO11, SD_CMD, SPICS0, HS1_CMD :ref:`(See 1) <get-started-pico-kit-v4-pin-notes>` , U1RTS
4 SENSOR_VP (FSVP) I | GPIO36, ADC1_CH0, RTC_GPIO0
5 SENSOR_VN (FSVN) I | GPIO39, ADC1_CH3, RTC_GPIO3
6 IO25 I/O | GPIO25, DAC_1, ADC2_CH8, RTC_GPIO6, EMAC_RXD0
7 IO26 I/O | GPIO26, DAC_2, ADC2_CH9, RTC_GPIO7, EMAC_RXD1
8 IO32 I/O | 32K_XP :ref:`(3a) <get-started-pico-kit-v4-pin-notes>` , ADC1_CH4, TOUCH9, RTC_GPIO9
9 IO33 I/O | 32K_XN :ref:`(3b) <get-started-pico-kit-v4-pin-notes>` , ADC1_CH5, TOUCH8, RTC_GPIO8
8 IO32 I/O | 32K_XP :ref:`(See 2a) <get-started-pico-kit-v4-pin-notes>` , ADC1_CH4, TOUCH9, RTC_GPIO9
9 IO33 I/O | 32K_XN :ref:`(See 2b) <get-started-pico-kit-v4-pin-notes>` , ADC1_CH5, TOUCH8, RTC_GPIO8
10 IO27 I/O | GPIO27, ADC2_CH7, TOUCH7, RTC_GPIO17
| EMAC_RX_DV
11 IO14 I/O | ADC2_CH6, TOUCH6, RTC_GPIO16, MTMS, HSPICLK,
| HS2_CLK, SD_CLK, EMAC_TXD2
12 IO12 I/O | ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI :ref:`(5) <get-started-pico-kit-v4-pin-notes>` , HSPIQ,
12 IO12 I/O | ADC2_CH5, TOUCH5, RTC_GPIO15, MTDI :ref:`(See 4) <get-started-pico-kit-v4-pin-notes>` , HSPIQ,
| HS2_DATA2, SD_DATA2, EMAC_TXD3
13 IO13 I/O | ADC2_CH4, TOUCH4, RTC_GPIO14, MTCK, HSPID,
| HS2_DATA3, SD_DATA3, EMAC_RX_ER
@ -171,26 +178,44 @@ No. Name Type Function
.. _get-started-pico-kit-v4-pin-notes:
**Notes to** `Pin Descriptions`_
The following notes give more information about the items in the tables above.
1. This pin is connected to the flash pin of ESP32-PICO-D4.
2. When used as ADC_PRE_AMP, connect 270 pF capacitors between: (a) SENSOR_VP and IO37, (b) SENSOR_VN and IO38.
3. 32.768 kHz crystal oscillator: (a) input, (b) output.
4. This pin is connected to the pin of the USB bridge chip on the board.
5. The operating voltage of ESP32-PICO-KIT’s embedded SPI flash is 3.3V. Therefore, the strapping pin MTDI should hold bit ”0” during the module power-on reset.
2. 32.768 kHz crystal oscillator:
a) input
b) output
3. This pin is connected to the pin of the USB bridge chip on the board.
4. The operating voltage of ESP32-PICO-KIT’s embedded SPI flash is 3.3V. Therefore, the strapping pin MTDI should hold bit zero during the module power-on reset. If connected, please make sure that this pin is not held up on reset.
Start Application Development
-----------------------------
Before powering up your ESP32-PICO-KIT, please make sure that the board is in good condition with no obvious signs of damage.
After that, proceed to :doc:`index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an example project onto your board.
Board Dimensions
----------------
.. figure:: ../../_static/esp32-pico-kit-v4.1-dimensions-back.jpeg
The dimensions are 52 x 20.3 x 10 mm (2.1" x 0.8" x 0.4").
.. figure:: ../../_static/esp32-pico-kit-v4.1-dimensions-back.jpg
:align: center
:alt: ESP32-PICO-KIT dimensions - back
:figclass: align-center
ESP32-PICO-KIT dimensions - back
For the board physical construction details, please refer to Reference Design listed below.
.. figure:: ../../_static/esp32-pico-kit-v4-dimensions-side.jpg
:align: center
:alt: ESP32-PICO-KIT V4 dimensions - side
:figclass: align-center
ESP32-PICO-KIT dimensions - side
For the board physical construction details, please refer to its Reference Design listed below.
Related Documents