An ESP 8 channels motor controller

2 Goals :

• Make a floor heating controller

• ESP motor shield

Functionalities :

• Can control 8 DC motors or 4 steppers motor

• Can drive 8 Homematic valve actuators [HmIP-VDMOT] (~15$ each)

• The card use a ESP32-WROOM-32D as logics and wifi connection. (You can get a 32U if you want an external antenna)

• The software runs under esphome to be easy to customize and linked with https://www.home-assistant.io

• Can be extended up to 16 channels (I recommend to get 2 boards for better performances, but the shifts registers can be extended up to 4)

• Use BEMF (back electromotive force) from motors to get endstops

• Can be directly linked to external temperature sensors (wifi,BLE, or via available free pins)

• Wide range of input power 2.5 to 6V

• Easily hackable