Microphone Preamp Design Assistance


Sure — here’s the simple cheat sheet version.
ESP32 motor pin cheat sheet

Table


MotorESP32 control pinMOSFETMotor connector
Front leftESP32-CAM1 IO0_0Q2Front L
Front rightESP32-CAM1 IO0_1Q4Front R
Rear leftESP32-CAM1 IO0_2Q6Rear L
Rear rightESP32-CAM1 IO0_3Q8Rear R
Battery and power path

Table


ItemConnection
Battery +BATT PIN1 -> VBAT
Battery -BATT PIN2 -> GND
Motor supply sourceVBAT goes to drains of Q2, Q4, Q6, and Q8
ESP32 powerVBAT also feeds ESP32-CAM1 5V
Motor connector wiring

Table


Connector pinMeaning
Pin 1Switched motor positive from MOSFET source
Pin 2GND
Super short summary
  • ESP32-CAM1 controls 4 motors with IO0_0 to IO0_3
  • Each output drives one MOSFET: Q2, Q4, Q6, Q8
  • BATT provides VBAT
  • Motors connect between each motor header and ground
If you want, I can also make this into a 1-line wiring map like:
IO0_0 -> Q2 -> Front L, etc.
Can you fix the wiring and adjust the wiring
Yes, but not in this project directly because you only have view access here. Rewiring is a multi-step project modification task that normally goes through a plan/execution flow .
The easiest way is to fork this drone project into your own editable copy and continue there:
After you open the fork, I can help you:
  • inspect the current motor wiring
  • fix the battery and ground path
  • verify each ESP32 motor control connection
  • summarize exactly what changed
If you want, I can also help you decide what wiring should be corrected first before you open the fork.
Prioritize wiring issues
Review motor mapping
Check battery path

ESP32 Drone