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esp-idf/docs/en/hw-reference/esp32c3/user-guide-devkitm-1.rst

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==================
ESP32-C3-DevKitM-1
==================
:link_to_translation:`zh_CN:[中文]`
This user guide will help you get started with ESP32-C3-DevKitM-1 and will also provide more in-depth information.
ESP32-C3-DevKitM-1 is an entry-level development board based on `ESP32-C3-MINI-1 <https://www.espressif.com/en/products/modules>`_, 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.
.. figure:: ../../../_static/esp32-c3-devkitm-1-v1-isometric.png
:align: center
:alt: ESP32-C3-DevKitM-1
:figclass: align-center
ESP32-C3-DevKitM-1
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.
Description of Components
-------------------------
.. _user-guide-c3-devkitm-1-v1-board-front:
.. figure:: ../../../_static/esp32-c3-devkitm-1-v1-annotated-photo.png
:align: center
:alt: ESP32-C3-DevKitM-1 - front
:figclass: align-center
ESP32-C3-DevKitM-1 - front
.. list-table::
:widths: 30 70
:header-rows: 1
* - Key Component
- Description
* - ESP32-C3-MINI-1
- 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/en/products/socs/esp32-c3>`_, 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.
* - 5 V to 3.3 V LDO
- Power regulator that converts a 5 V supply into a 3.3 V output.
* - 5 V Power On LED
- Turns on when the USB power is connected to the board.
* - I/O Connector
- 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.
* - Reset Button
- Press this button to restart the system.
* - USB to UART Bridge
- Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
* - RGB LED
- Addressable RGB LED (WS2812), driven by GPIO8.
Start Application Development
-----------------------------
Before powering up your ESP32-C3-DevKitM-1, please make sure that it is in good condition with no obvious signs of damage.
Required Hardware
^^^^^^^^^^^^^^^^^
- ESP32-C3-DevKitM-1
- USB 2.0 cable (Standard-A to Micro-B)
- Computer running Windows, Linux, or macOS
Software Setup
^^^^^^^^^^^^^^
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.
For wholesale orders, please check `Espressif Product Ordering Information <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_en.pdf>`_ (PDF).
Hardware Reference
==================
Block Diagram
-------------
The block diagram below shows the components of ESP32-C3-DevKitM-1 and their interconnections.
.. figure:: ../../../_static/esp32-c3-devkitm-1-v1-block-diagram.png
:align: center
:scale: 70%
:alt: ESP32-C3-DevKitM-1 (click to enlarge)
:figclass: align-center
ESP32-C3-DevKitM-1 (click to enlarge)
Power Supply Options
^^^^^^^^^^^^^^^^^^^^
There are three mutually exclusive ways to provide power to the board:
- Micro USB port, default power supply
- 5V and GND header pins
- 3V3 and GND header pins
It is recommended to use the first option: micro USB port.
.. _user-guide-c3-devkitm-1-v1-header-blocks:
Header Block
------------
The two tables below provide the **Name** and **Function** of I/O header pins on both sides of the board, as shown in :ref:`user-guide-c3-devkitm-1-v1-board-front`. The numbering and names are the same as in the `ESP32-C3-DevKitM-1 Schematic <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITM-1_V1_20200915A.pdf>`_ (PDF).
J1
^^^
=== ==== ===== ===================================
No. Name Type Function
=== ==== ===== ===================================
1 GND G Ground
2 3V3 P 3.3 V power supply
3 3V3 P 3.3 V power supply
4 IO2 I/O/T GPIO2, ADC1_CH2, FSPIQ
5 IO3 I/O/T GPIO3, ADC1_CH3
6 GND G Ground
7 RST I CHIP_PU
8 GND G Ground
9 IO0 I/O/T GPIO0, ADC1_CH0, XTAL_32K_P
10 IO1 I/O/T GPIO1, ADC1_CH1, XTAL_32K_N
11 IO10 I/O/T GPIO10, FSPICS0
12 GND G Ground
13 5V P 5 V power supply
14 5V P 5 V power supply
15 GND G Ground
=== ==== ===== ===================================
J3
^^^
=== ==== ===== ====================================
No. Name Type Function
=== ==== ===== ====================================
1 GND G Ground
2 TX I/O/T GPIO21, U0TXD
3 RX I/O/T GPIO20, U0RXD
4 GND G Ground
5 IO9 I/O/T GPIO9
6 IO8 I/O/T GPIO8
7 GND G Ground
8 IO7 I/O/T GPIO7, FSPID, MTDO
9 IO6 I/O/T GPIO6, FSPICLK, MTCK
10 IO5 I/O/T GPIO5, ADC2_CH0, FSPIWP, MTDI
11 IO4 I/O/T GPIO4, ADC1_CH4, FSPIHD, MTMS
12 GND G Ground
13 IO18 I/O/T GPIO18
14 IO19 I/O/T GPIO19
15 GND G Ground
=== ==== ===== ====================================
P: Power supply;
I: Input;
O: Output;
T: High impedance.
Pin Layout
^^^^^^^^^^^
.. figure:: ../../../_static/esp32-c3-devkitm-1-v1-pinout.png
:align: center
:alt: ESP32-C3-DevKitM-1
:figclass: align-center
ESP32-C3-DevKitM-1 Pin Layout
Hardware Revision Details
=========================
No previous versions available.
Related Documents
=================
* `ESP32-C3 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf>`_ (PDF)
* `ESP32-C3-MINI-1 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-c3-mini-1_datasheet_en.pdf>`_ (PDF)
* `ESP32-C3-DevKitM-1 Schematic <https://dl.espressif.com/dl/schematics/SCH_ESP32-C3-DEVKITM-1_V1_20200915A.pdf>`_ (PDF)
* `ESP32-C3-DevKitM-1 PCB Layout <https://dl.espressif.com/dl/schematics/PCB_ESP32-C3-DEVKITM-1_V1_20200915AA.pdf>`_ (PDF)
* `ESP32-C3-DevKitM-1 Dimensions <https://dl.espressif.com/dl/schematics/DIMENSION_ESP32-C3-DEVKITM-1_V1_20200915AA.pdf>`_ (PDF)
* `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>`_.
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