💡 24V / 🌈 12V Tasmota RGBW Lighting Controller for Home Assistant

This project is a custom-designed RGBW LED lighting controller built with KiCad and designed to integrate seamlessly with Home Assistant using Tasmota firmware on an ESP8266. I wanted a reliable, low-cost RGBW controller that worked well with Tasmota and Home Assistant, supported both 12V and 24V strips, and could be manufactured easily. So I built my own! Perfect for DIY smart lighting installations where cost, flexibility, and local control via Home Assistant are key.

Features

• Dual voltage support: Controls 24V white LED strips and 12V RGB/RGBW LED strips from a single board.
• Tasmota firmware integration: Fully configurable via Home Assistant to adjust White brightness (24V) and RGB color channels (12V)
• Two independent lighting zones

Hardware Requirements

• Single-sided PCB for simpler DIY fabrication
• 4x IRF4905PBF
• 4x CTBC 547B
• 4x IRLZ34NPBF3
• 1x Power Jack
• 2x LM2596
• 8x 10 kΩ Resistor
• 6x 1 kΩ Resistor
• 4x 220 Ω Resistor
• 2x 100 Ω Resistor
• 3x JST XH: two pin header
• 2x JST XH: four pin header

Configuration

Tasmota

Configuration within Tasmota as Module Type 'Generic (18)' (Fig.: (D))

To toggle the two LED rows in this example pin D1 and D2 are used (Fig.: (D.1)) The colouration of the lights (Fig.: (D.2)) is being changed by the pins D6, D7, D8. Independet the amount of white value (Fig.: (D.6)) is being changed by pin D5. If you want to use a separate external button for switching, in this example it is reserved for D0 (Fig.: (D.7)).

KiCad

Schematic (Fig.: (E)), Gerber files (Fig.: (F)) and *.STEP (Fig.: (G)) files are shared as a reference. As illustrated in Fig. (C) I manufactured the prototype as DIY, which is why the STEP files was created.