ESP32-C3FH4-RGB

A tiny ESP32-C3 board with 5x5 LED array.

Features

• I2C on 0/1 using Qwiic connector
• LED on pin 10 (use setStatusLight to control)
• Serial logging on pin 21 at 115200 8N1

• Service: buttonBOOT (button)

Stores

• https://github.com/01Space/ESP32-C3FH4-RGB
• https://usa.banggood.com/ESP32-C3-Development-Board-RISC-V-WiFi-Bluetooth-IoT-Development-Board-Compatible-with-Python-p-1914005.html?imageAb=2&akmClientCountry=America&a=1694552315.7453&akmClientCountry=America&cur_warehouse=CN

Pins

pin name	hardware id	features
LEDS	GPIO8	boot, io
P2	GPIO2	analogIn, boot, io
P20	GPIO20	bootUart, io
P3	GPIO3	analogIn, io
P4	GPIO4	analogIn, debug, io
P5	GPIO5	debug, io
P6	GPIO6	debug, io
P7	GPIO7	debug, io
$services.buttonBOOT[0].pin	GPIO9	$services.buttonBOOT[0].pin, boot, io
i2c.pinSCL	GPIO1	i2c.pinSCL, analogIn, io
i2c.pinSDA	GPIO0	i2c.pinSDA, analogIn, io
led.pin	GPIO10	led.pin, io
log.pinTX	GPIO21	log.pinTX, bootUart, io

DeviceScript import

You must add this import statement to load the pinout configuration for this device.

In Visual Studio Code, click the wand icon on the file menu and select "ESP32-C3FH4-RGB".

import { pins, board } from "@dsboard/esp32_c3fh4_rgb"

Driver

The LEDs can be controlled as a LED strip or a display.

import { Esp32C3FH4RGB } from "@devicescript/drivers"
import { startLedDisplay } from "@devicescript/runtime"

const board = new Esp32C3FH4RGB()
const led = await board.startLed()
await led.intensity.write(0.05)
const display = await startLedDisplay(led)

const n = display.palette.length
let k = 0
for (let y = 0; y < 5; ++y)
    for (let x = 0; x < 5; ++x) 
        await display.image.set(x, y, k++ % n)
await display.show()

Firmware update

In Visual Studio Code, select DeviceScript: Flash Firmware... from the command palette.

Run this command line command and follow the instructions.

devicescript flash --board esp32_c3fh4_rgb

• Firmware

Configuration

esp32_c3fh4_rgb.json

{
    "$schema": "https://raw.githubusercontent.com/microsoft/devicescript-esp32/main/boards/esp32deviceconfig.schema.json",
    "id": "esp32_c3fh4_rgb",
    "devName": "ESP32-C3FH4-RGB",
    "productId": "0x3a90885c",
    "$description": "A tiny ESP32-C3 board with 5x5 LED array.",
    "archId": "esp32c3",
    "url": "https://github.com/01Space/ESP32-C3FH4-RGB",
    "$services": [
        {
            "name": "buttonBOOT",
            "pin": 9,
            "service": "button"
        }
    ],
    "i2c": {
        "$connector": "Qwiic",
        "pinSCL": 1,
        "pinSDA": 0
    },
    "led": {
        "isMono": true,
        "pin": 10
    },
    "log": {
        "pinTX": 21
    },
    "pins": {
        "LEDS": 8,
        "P2": 2,
        "P20": 20,
        "P3": 3,
        "P4": 4,
        "P5": 5,
        "P6": 6,
        "P7": 7
    }
}