Description: Item Name: Parameter Debugging Module Input voltage: 5 V Features: Read and adjust all PID parameters Read and adjust AUX1/AUX2 Switch setting Monitor remote controller signal and output control signal of flight controller board Monitor signal between GPS output signal and Gyro, acceleration meter,pressure meter and other sensors Calibrate magnetic resistance and acceleration sensor Read and save MWC parameter via cellphone Support screenshot Compatible with all MWC flight controller, 328P flight control Board connect UART Serial port and Mega Flight control Board connect Serial 0 Port Support transparent data transfer function, also can be used with other devices Bluetooth Module adopts UK's CSR Bluetooth slave module, with high stability and stable signal With regulated power supply, can connect to UART TTL port of MWC directly, easy to adjust parameters LED State indicator: Green: Power supply indicator, continuous lighting when power on Red: Flashing light indicates no connection, continuous lighting indicates connection success Note: Please make sure your flight controller or other device is connecting in the right way to avoid burning. Package Included: 1 x bluetooth module 1 x 4 pin connect cable (200mm)