ESP32C3 RGB Controller

A compact 6 + 2 channel board with 6 PWM channels and 2 switchable outputs, suitable for 3 RGB LED strips or 1 RGB+CCT strip plus two switched loads. Two GPIOs are externally accessible; GPIO2 includes a pull-up for easy DS1820S temperature sensor connection. Supports 5-24 V input with up to 3 A total current. Intended for Tasmota firmware; a ready-to-use template is included.

Hardware Overview

• 8 outputs total: 6 PWM channels + 2 switchable outputs
• Suitable for 3 RGB strips or 1 RGB+CCT strip
• 2 external GPIOs (GPIO2 with pull-up for DS1820S)
• Supply: 5-24 V, max 3 A

Firmware (Tasmota)

Use this template in Tasmota:

{"NAME":"ESP32C3 RGB","GPIO":[224,421,1,1,225,419,418,417,416,544,420,0,0,0,0,0,0,0,1,1,1,1],"FLAG":0,"BASE":1}

Manufacturing Notes

Manufactured by JLCPCB, the assembled board is about $5 per unit (excluding the ESP32-C3 MCU, which must be soldered separately).

Resources

• OSHWLAB project
• EasyEDA project

Images

Schematic

Schematic export (2024-04-24).

Assembled Board

Assembled board photo.