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Showing content from https://github.com/esp-rs/esp-rust-board below:

esp-rs/esp-rust-board: Open Hardware with ESP32-C3 compatible with Feather specification designed in KiCad

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)

Training Book: Explore the power of Rust on the new Espressif board
- Training Material

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*

ESP32C3

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