/esp-rust-board

OtherNOASSERTION

Rust ESP Board

Welcome to the Rust ESP Development board project.

Project Specification

This board is based on the ESP32-C3, and includes sensors, LED, buttons, battery charger, and USB type-C connector.

SoC Features

  • 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.

I2C Peripherals

This board includes the following peripherals over the I2C bus:

Peripheral Part number Reference Crate
IMU ICM-42670-P Datasheet N/A
Temperature and Humidity SHTC3 Datasheet Link

I2C Bus Connection

Signal GPIO
SDA GPIO10
SCL GPIO8

I/Os

The following devices are connected through GPIO:

I/O Devices GPIO
LED GPIO7
Button/Boot GPIO9

Power

  • USB type-C (no PD compatibility)

Pin Layout

This is the preliminary pin layout. Changes may occur!

Left Side (J?)

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 GPIO5
10 IO5/ADC2-1 GPIO4
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

Right Side (J?)

Pin Number Description SoC
1 VBAT
2 EN [1]
3 VBUS [2]
4 IO12/SPIHD GPIO12
5 IO13/SPIWP GPIO13
6 IO15/SPICLK GPIO15
7 IO16/SPID GPIO16
8 IO17/SPIQ GPIO17
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

Project KiCad Libraries

Board Design

This is the preliminary layout. Changes may occur!

Design