DFR0513

PPM 2x3A DC Motor Driver SKU: DFR0513 Introduction This motor driver module is a special PPM signal motor controller for aeromodelling remote control. It is designed by DFRobot and it can be controlled by RC transmitter. The driver can convert PPM signal to the motor speed and direction control signal. There are two signal receiving channels (CH1, CH2) and two motor channels (M1, M2) on the board. Each signal input channel uses a standard 50Hz PPM signal with a duty cycle of 5% to 10%. When the rocker returns to the middle, the motor stops rotating, waggling the rocker up and down (or left and right), and the motor rotates forward or backward. The motor driver supports 7 ~ 12V wide range power input, the maximum input voltage is 40V, and the continuous current of each channel is 3A, the allowable peak current is 6A. When the current is over 6A, the driver chip will be into a protected state (in the protection state, it requires repower to start again). The module has LDO power management system, which can provide an output current of 5V/200mA externally. Therefore, the remote control receiver of the model can be directly connected to the driver board without additional power supply to the receiver. Features • • • • • • 2-way independent motor drive Controlled by PPM signal, compatible with servo control signal Designed for aeromodelling and fighting robots Support professional aircraft model remote control 7~12V wide input range With overload protection Specification • • • • • • • • • • • • • Input Voltage: 7~12V Logic Power: 5V (compatible with 3.3V controller) Master Chip: STM8S105 Driver Chip: TLE5205 Drive Signal: 1000~1469us Forward decrement 1470~1560us stop domain 1561~2000us reverse increase 3A current continuous drive capability 6A peak current protection Supports independent two-channel motor drive Dimension: 90mm×30mm Weight: 35 g Board Overview Motor Driver Front Motor Driver Back (The pad on the bottom is the battery power port) Label Name Description DC: 7~12V "+" VCC 7~12VDC DC: 7~12V "-" GND GND M1 DC motor port 1 DC motor M2 DC motor port 2 DC motor CH1 PPM Signal 1 50Hz，PPM Signal CH2 PPM Signal 2 50Hz，PPM Signal Tutorial Control Signal PPM Motor Driver Module supports 2-way independent DC motor drive, driving signal from CH1 and CH2 input, respectively corresponding to M1 and M2 motor drive output. CH1, CH2 can be directly connected to the receiver of aeromodelling remote control (such as FS-IA6B transmitter). It can be also controlled by Arduino Servo code. Note: PPM Motor Driver Module has 5V power output, it doesn't need to connect power, when you connect to the receiver. The control signal adopted by the PPM Motor Driver Board is the PPM output signal of the Airmodel Remote Control Standard, which can be directly connected to the Airmodel Remote Control Receiver. The signal is a PWM signal with a frequency of 50Hz , sliding remote controller rocker, the high level duration of the signal is controlled by 1000us ~ 2000us. • • When the high level duration of the control signal increases from 1000us to 1469us, the motor turns forward and the speed decreases gradually. When the high level duration of the control signal increases from 1561us to 2000us, the motor reverses and the speed increases gradually. • When the high level duration of the control signal is between 1470us and 1560us (i.e. the joystick returns to the center-point), the motor stops rotating and the motor drive port outputs a low level. (An intermediate stop field has been added due to possible mechanical errors in the remote control.) Control signal waveform diagram Note: PPM Motor Driver Module doesn't have brake function. Arduino Control • • • • • Hardware DFRduino UNO R3 (or similar) x 1 USB Cable PPM Motor Driver Modules M-M/F-M/F-F Jumper wires • • Software Arduino IDE, Click to Download Arduino IDE from Arduino® #include Servo myservo; // create servo object to control a servo int pos = 90; void setup() { myservo.attach(9); } void loop() { // attaches the servo on pin 9 for (pos = 90; pos = 90; pos -= 1) { //Forward and slow down myservo.write(pos); delay(150); } for (pos = 90; pos >= 45; pos -= 1) { //Reverse and speed up myservo.write(pos); delay(150); } for (pos = 45; pos