README.md - third_party/github/esp-rs/esp-rust-board - Git at Google

 # Rust ESP Board

 Welcome to the Rust ESP Development board project. This repository contains everything you will need to build the board yourself. Manufactured boards will be available soon, at which point a purchase link will replace this text.

 ## Project Specification

 This board is based on the ESP32-C3, and includes sensors, LEDs, buttons, a 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](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf).

 ### I2C Peripherals

 This board includes the following peripherals over the I2C bus:

 | Peripheral                | Part number  | Reference                                                                   | Crate | Address |
 |---------------------------|--------------|-----------------------------------------------------------------------------|-------|---------|
 | IMU                       | ICM-42670-P  | [Datasheet](https://invensense.tdk.com/download-pdf/icm-42670-p-datasheet/) | N/A   | 0x68 |
 | Temperature and Humidity  | SHTC3        | [Datasheet](https://www.sensirion.com/en/environmental-sensors/humidity-sensors/digital-humidity-sensor-shtc3-our-new-standard-for-consumer-electronics/)            | [Link](https://crates.io/crates/shtcx)       | 0x70 |

 #### I2C Bus Connection

 | Signal     | GPIO        |
 |------------|-------------|
 | SDA        | GPIO10      |
 | SCL        | GPIO8       |

 ### I/Os

 The following devices are connected through GPIO:

 | I/O Devices | GPIO   |
 |-------------|--------|
 | WS2812 LED  | GPIO2  |
 | LED         | GPIO7  |
 | Button/Boot | GPIO9  |

 ### Power

 * USB type-C (*no PD compatibility*).
 * Li-Ion battery charger.

 ### Pin Layout

 #### Left Side

 | 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      |

 #### Right Side

 | 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*

 ## Project KiCad Libraries

 * [ESP32C3](https://github.com/espressif/kicad-libraries)

 ## Board Design

 Top

 ![TOP](assets/esp-rust-board_top.jpg)

 Bottom

 ![BOT](assets/esp-rust-board_bot.jpg)

 ## Bill of Material

 [Interactive BOM](https://esp-rs.github.io/esp-rust-board/)
	# Rust ESP Board

	Welcome to the Rust ESP Development board project. This repository contains everything you will need to build the board yourself. Manufactured boards will be available soon, at which point a purchase link will replace this text.

	## Project Specification

	This board is based on the ESP32-C3, and includes sensors, LEDs, buttons, a 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](https://www.espressif.com/sites/default/files/documentation/esp32-c3_datasheet_en.pdf).

	### I2C Peripherals

	This board includes the following peripherals over the I2C bus:

	\| Peripheral \| Part number \| Reference \| Crate \| Address \|
	\|---------------------------\|--------------\|-----------------------------------------------------------------------------\|-------\|---------\|
	\| IMU \| ICM-42670-P \| [Datasheet](https://invensense.tdk.com/download-pdf/icm-42670-p-datasheet/) \| N/A \| 0x68 \|
	\| Temperature and Humidity \| SHTC3 \| [Datasheet](https://www.sensirion.com/en/environmental-sensors/humidity-sensors/digital-humidity-sensor-shtc3-our-new-standard-for-consumer-electronics/) \| [Link](https://crates.io/crates/shtcx) \| 0x70 \|

	#### I2C Bus Connection

	\| Signal \| GPIO \|
	\|------------\|-------------\|
	\| SDA \| GPIO10 \|
	\| SCL \| GPIO8 \|

	### I/Os

	The following devices are connected through GPIO:

	\| I/O Devices \| GPIO \|
	\|-------------\|--------\|
	\| WS2812 LED \| GPIO2 \|
	\| LED \| GPIO7 \|
	\| Button/Boot \| GPIO9 \|

	### Power

	* USB type-C (no PD compatibility).
	* Li-Ion battery charger.

	### Pin Layout

	#### Left Side

	\| 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 \|

	#### Right Side

	\| 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*

	## Project KiCad Libraries

	* [ESP32C3](https://github.com/espressif/kicad-libraries)

	## Board Design

	Top

	![TOP](assets/esp-rust-board_top.jpg)

	Bottom

	![BOT](assets/esp-rust-board_bot.jpg)

	## Bill of Material

	[Interactive BOM](https://esp-rs.github.io/esp-rust-board/)