ESPDrive

A power wheels monitor for Home Assistant — for more: home, github, portfolio or email.

Home Assistant

Available entities include vehicle status (on/off), lights status (on/off), direct relay control, and main battery voltage

Home Assistant

Front

RGB Status LED, ESP32 DevKit v1, 12V switching regulator (for radio and lights when increasing main battery voltage), 3.3V switching regulator, Micro K relay, dual optoisolated inputs for vehicle power and lights

Front Picture

Rear

Main battery input, ~13.5V DC output, 3.3V DC output, relay connections, vehicle power and light status input

Rear Picture

Schematic

Open source schematic provided - View

Schematic

PCB Layout

PCB Layout provided in KiCAD format - View

PCB Layout

ESPHome Configuration

Sample ESPHome .yaml provided - View

ESP Home .yaml

Bill of Materials

BoM provided in .csv format - View

Bill of Materials