DFR0513 2 x 3A PPM DC Motor Driver DFRobot DFR0513 2 x 3A Pulse Position Modulation (PPM) DC Motor Driver is a special PPM signal motor controller for aeromodelling remote control and fighting robots. An RC transmitter can control this motor driver. The DFR0513 motor driver converts the PPM signal to the motor speed and direction control signal. This 2-way independent motor driver features two signal receiving channels (CH1 and CH2) and two motor channels (M1 and M2) on the board. Each signal input channel uses a standard 50Hz PPM signal with a duty cycle of 5% to 10%. The DFR0513 motor driver supports 7V to 12V wide input voltage range, and each channel's continuous current is 3A.