The core of this board is `ESP32-PICO-V3 <https://www.espressif.com/en/products/socs>`_ - a System-in-Package (SiP) module with complete Wi-Fi and Bluetooth® functionalities. Compared to other ESP32 modules, ESP32-PICO-V3 integrates the following peripheral components in one single package, which otherwise would need to be installed separately:
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-to-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-V3 are led out to two rows of 18 x 0.1" header pads on both sides of the development board for easy access. For compatibility with Dupont wires, all header pads are populated with two rows of male pin headers.
ESP32-PICO-KIT-1 comes with male headers by default.
ESP32-PICO-KIT-1 provides the users with hardware for development of applications based on the ESP32, making it easier for users to explore ESP32 functionalities.
This section describes how to get started with the ESP32-PICO-KIT-1. It begins with a few introductory sections about the ESP32-PICO-KIT-1, then Section `Start Application Development`_ provides instructions on how to flash firmware onto the ESP32-PICO-KIT-1.
- Standard ESP32-PICO-V3 module soldered to the ESP32-PICO-KIT-1 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-to-UART bridge
- CP2102N, single-chip USB-to-UART bridge that 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 schematic in `Related Documents`_.
* - I/O Connector
- All the pins on ESP32-PICO-V3 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.
Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment.
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-1-board-front`. The pin numbering and header names are the same as in the schematic given in `Related Documents`_.
3. The operating voltage of ESP32-PICO-KIT-1's embedded SPI flash is 3.3 V. Therefore, the strapping pin MTDI should be pulled down during the module power-on reset. If connected, please make sure that this pin is not held up on reset.
