ESP32-C3-DevKitM-1 is an entry-level development board based on `ESP32-C3-MINI-1 <https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf>`_, a module named for its small size. This board integrates complete Wi-Fi and Bluetooth LE functions.
Most of the I/O pins on the ESP32-C3-MINI-1 module are broken out to the pin headers on both sides of this board for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-C3-DevKitM-1 on a breadboard.
The document consists of the following major sections:
-`Getting Started`_: Overview of ESP32-C3-DevKitM-1 and hardware/software setup instructions to get started.
-`Hardware Reference`_: More detailed information about the ESP32-C3-DevKitM-1's hardware.
-`Hardware Revision Details`_: Revision history, known issues, and links to user guides for previous versions (if any) of ESP32-C3-DevKitM-1.
-`Related Documents`_: Links to related documentation.
Getting Started
===============
This section provides a brief introduction of ESP32-C3-DevKitM-1, instructions on how to do the initial hardware setup and how to flash firmware onto it.
- ESP32-C3-MINI-1 is a general-purpose Wi-Fi and Bluetooth LE combo module that comes with a PCB antenna. At the core of this module is `ESP32-C3FN4 <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf>`_, a chip that has an embedded flash of 4 MB. Since flash is packaged in the ESP32-C3FN4 chip, rather than integrated into the module, ESP32-C3-MINI-1 has a smaller package size.
- All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. For details, please see :ref:`user-guide-c3-devkitm-1-v1-header-blocks`.
* - Boot Button
- Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port.
* - Micro-USB Port
- USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-C3FN4 chip.
Be sure to use an appropriate USB cable. Some cables are for charging only and do not provide the needed data lines nor work for programming the boards.
Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an application example onto your ESP32-C3-DevKitM-1.
Contents and Packaging
----------------------
Retail Orders
^^^^^^^^^^^^^
If you order one or several samples, each ESP32-C3-DevKitM-1 comes in an individual package in either antistatic bag or any packaging depending on your retailer.
For retail orders, please go to https://www.espressif.com/en/company/contact/buy-a-sample.
Wholesale Orders
^^^^^^^^^^^^^^^^
If you order in bulk, the boards come in large cardboard boxes.
The two tables below provide the **Name** and **Function** of the pin headers on both sides of the board (J1 and J3). The pin header names are shown in :ref:`user-guide-c3-devkitm-1-v1-board-front`. The numbering is the same as in the `ESP32-C3-DevKitM-1 Schematic`_ (PDF).
..[2] GPIO2, GPIO8, and GPIO9 are strapping pins of the ESP32-C3FN4 chip. These pins are used to control several chip functions depending on binary voltage values applied to the pins during chip power-up or system reset. For description and application of the strapping pins, please refer to Section Strapping Pins in `ESP32-C3 Datasheet`_.
*`ESP32-C3-DevKitM-1 Dimensions source file <https://dl.espressif.com/dl/schematics/DIMENSION_ESP32-C3-DEVKITM-1_V1_20200915AA.dxf>`_ (DXF) - You can view it with `Autodesk Viewer <https://viewer.autodesk.com/>`_ online
For further design documentation for the board, please contact us at `sales@espressif.com <sales@espressif.com>`_.
