Welcome to the Rust ESP Development board project. This repository contains everything you will need to build the board yourself.
- ESP32-C3-DevKit-RUST-1
- AliExpress Espressif Official Store
- Mouser Electronics (Note that at least when ordering from the UK and seemingly EU and Europe, if you choose to order through Mouser there is long process instigated by email post-checkout to fill out and then electronically sign or fax export declaration forms which can add significant delay)
This board is based on the ESP32-C3, and includes sensors, LEDs, buttons, a battery charger, and USB type-C connector.
- IEEE 802.11 b/g/n-compliant
- Bluetooth 5, Bluetooth mesh
- 32-bit RISC-V single-core processor, up to 160MHz
- 384 KB ROM
- 400 KB SRAM (16 KB for cache)
- 8 KB SRAM in RTC
- 22 × programmable GPIOs
- 3 × SPI
- 2 × UART
- 1 × I2C
- 1 × I2S
- 2 × 54-bit general-purpose timers
- 3 × watchdog timers
- 1 × 52-bit system timer
- Remote Control Peripheral (RMT)
- LED PWM controller (LEDC)
- Full-speed USB Serial/JTAG controller
- General DMA controller (GDMA)
- 1 × TWAI®
- 2 × 12-bit SAR ADCs, up to 6 channels
- 1 × temperature sensor
For the complete description, see the ESP32-C3 Datasheet.
This board includes the following peripherals over the I2C bus:
| Peripheral | Part number | Reference | Crate | Address |
|---|---|---|---|---|
| IMU | ICM-42670-P | Datasheet | Link | 0x68 |
| Temperature and Humidity | SHTC3 | Datasheet | Link | 0x70 |
| Signal | GPIO |
|---|---|
| SDA | GPIO10 |
| SCL | GPIO8 |
The following devices are connected through GPIO:
| I/O Devices | GPIO |
|---|---|
| WS2812 LED | GPIO2 |
| LED | GPIO7 |
| Button/Boot | GPIO9 |
- USB type-C (no PD compatibility).
- Li-Ion battery charger - MCP73831T-2ACI/OT, it charges up to 4.2V.
- Recommendation: MCP73831T-2ACI/OT does not provide battery protection for over-current or over-discharge. For the battery (Li-Ion or Li-Po), it's recommended the ones with embedded protection
- Limitation: reading the battery voltage is not supported.
| Pin Number | Description | SoC |
|---|---|---|
| 1 | Reset | EN/CHIP_PU |
| 2 | 3V3 | |
| 3 | N/C | |
| 4 | GND | |
| 5 | IO0/ADC1-0 | GPIO0 |
| 6 | IO1/ADC1-1 | GPIO1 |
| 7 | IO2/ADC1-2 | GPIO2 |
| 8 | IO3/ADC1-3 | GPIO3 |
| 9 | IO4/ADC2-0 | GPIO4 |
| 10 | IO5/ADC2-1 | GPIO5 |
| 11 | IO6/MTCK | GPIO6 |
| 12 | IO7/MTDO/LED | GPIO7 |
| 13 | IO9/LOG | GPIO8 |
| 14 | IO21/U0RXD | GPIO21 |
| 15 | IO20/U0TXD | GPIO20 |
| 16 | IO9/BOOT | GPIO9 |
| Pin Number | Description | SoC |
|---|---|---|
| 1 | VBAT | |
| 2 | EN [1] | |
| 3 | VBUS [2] | |
| 4 | NC | |
| 5 | NC | |
| 6 | NC | |
| 7 | NC | |
| 8 | NC | |
| 9 | IO18/USB_D- | GPIO18 |
| 10 | IO19/USB_D+ | GPIO19 |
| 11 | IO8/SCL | GPIO8 |
| 12 | IO10/SDA | GPIO10 |
- [1] Connected to LDO enable pin*
- [2] Connected to USB 5V*
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