Here's a step-by-step guide to wiring the Holybro PM07:
| Symptom | Likely Cause | Solution | | :--- | :--- | :--- | | | PM07 5V BEC not getting input voltage | Check battery connection; measure voltage at BAT+ pads. | | Current reading is zero | Wrong pin mapping in firmware | Verify CURR_PIN matches your flight controller's ADC input. | | Voltage reading is wrong | Incorrect voltage divider multiplier | Calibrate using a multimeter in Mission Planner. | | ESC motors stutter | Ground loop or insufficient ESC ground | Run a separate ground wire from ESC to FC's servo rail ground. | | PM07 gets very hot | Exceeding 5V BEC current (3A max) | Power high-current devices (gimbal, LEDs) directly from battery via a separate BEC. | holybro pm07 wiring
Properly wiring the PM07 is critical for flight safety, as it manages the high-current distribution to your motors and the sensitive power supply to your autopilot. Here's a step-by-step guide to wiring the Holybro
The Holybro PM07 has the following connection points: | | ESC motors stutter | Ground loop