Home Assistant Controller (v1) — Parts & Links

A tidy bill of materials for the build shown in the video. v1 is functional, not final — links here stay up to date.

I3MC Updated: 2026-01-01 Build: HomeAssistant → ESP32 → Outputs

Materials / BOM

ESP32 Dev Board

Controller running ESPHome

Relay Module (12V, 8-channel)

On/off switching for up to 250V/AC 10A

Link

12V Power Supply

Powers the fan an the LED Pannels

Link

12V PC Fan (PWM)

Used as a switchable PSU cooling Fan

Link

4 Channel MOSFETs

This thing was a pain to get working tho

Link

Wires

Messy but works

Link

Enclosure (3D printed / custom)

The box — the part everyone forgets to finish

Link

3D Printer

If you don't already own one

Link

Note: v1 proves the control path (Home Assistant → ESP32 → output). The LED power stage will be completed after swapping the correct MOSFETs.