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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, 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.
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.
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-DevKitM-1 - front
| 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, 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. |
Before powering up your ESP32-C3-DevKitM-1, please make sure that it is in good condition with no obvious signs of damage.
- ESP32-C3-DevKitM-1
- USB 2.0 cable (Standard-A to Micro-B)
- Computer running Windows, Linux, or macOS
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.
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.
If you order in bulk, the boards come in large cardboard boxes.
For wholesale orders, please check Espressif Product Ordering Information (PDF).
The block diagram below shows the components of ESP32-C3-DevKitM-1 and their interconnections.
ESP32-C3-DevKitM-1 (click to enlarge)
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.
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 (PDF).
| 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 |
| 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.
ESP32-C3-DevKitM-1 Pin Layout
No previous versions available.
- ESP32-C3 Datasheet (PDF)
- ESP32-C3-MINI-1 Datasheet (PDF)
- ESP32-C3-DevKitM-1 Schematic (PDF)
- ESP32-C3-DevKitM-1 PCB Layout (PDF)
- ESP32-C3-DevKitM-1 Dimensions (PDF)
- ESP32-C3-DevKitM-1 Dimensions source file (DXF) - You can view it with Autodesk Viewer online
For further design documentation for the board, please contact us at sales@espressif.com.