So this is a circuit of an automatic feeder. I wanted to connect it to the MCU (ESP32) so that I could control the motor and its speed. I want to connect it to the mcu so that I can control the feeder through the arduino cloud, but I also wanted to retain the manual feeding (using the push button). I also wanted to retain it's power source, meaning the feeder will still be battery operated (3V).
Can someone help me on where I should connect, or how can I modify the circuit to be connected to the MCU?
Here's the picture of the circuit

