I attached the servo driver of the HUb motor, I need it to be interfaced with pi contorller.
The entire system needs to be controlled in a app.
Its has to be like a car game controller, with few triggers for solenoid.
totally 2 nub motors.
and 4 relays,
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you can use ESP32 to replace Raspberry Pi ESP32 is much cheaper but yet powerful board, it has BLE on board to communicate with your app over Bluetooth if you interested in it just let me know on chat box
Hey I have read your project and I have experience in this field I am a mechtronics engineer, embedded system and I will benfit you in it Mohammed