LED Driver - Starfish

ESP32 based LED driver designed for use with ESPHome.

The pcb is designed with KiCad and has a ESP32-S3 with power and usb circuit. A total of four N-Channel FETs allow to switch 12V appliances (LED) upto 4.4A each. The four channels allow multiple LED strips or ones with RGBW etc.

starfish-b-render

Features

ESP32-S3 for use with ESPHome
4 Open-Drain Channels for RGBW
2 Buttons for user input
WS2812 LED
Multiple headers for further peripherals (I2C, 3V3, 5V, GPIOs)
6V to 15V Input

ESPHome Code

YAML configuration for ESPHome. Adapt as you need for your setup. Code is relevant for latest version (rev B).

Base

substitutions:
  dev_name: Kitchen

esphome:
  name: kitchen-starfish
  friendly_name: kitchen-starfish
  comment: ESP32 based LED driver for 12 V LED Strips

  on_boot:
    light.turn_on:
      id: status_led
      brightness: 20%
      green: 30%
      
esp32:
  variant: esp32s3
  board: esp32-s3-devkitc-1
  framework:
    type: arduino

Internal LED

light:
  - platform: esp32_rmt_led_strip
    id: status_led
    rgb_order: GRB
    pin: GPIO38
    num_leds: 1
    rmt_channel: 0
    chipset: ws2812
    name: "Status"
    internal: true

PWM Output

output:
  - platform: ledc
    id: output_component1
    pin: GPIO6
    frequency: 19531

  - platform: ledc
    id: output_component2
    pin: GPIO5
    frequency: 19531

Dimmable Light

light:
  - platform: monochromatic
    name: ${dev_name} Ceiling
    output: output_component1

Buttons

binary_sensor:
  - platform: gpio
    pin: 
      number: GPIO8
      inverted: True
    name: ${dev_name} BTN_1

  - platform: gpio
    pin: 
      number: GPIO11
      inverted: True
    name: ${dev_name} BTN_2

I2C Header

i2c:
  scl: GPIO9
  sda: GPIO10

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