Microduino-Motor

Language	English

Microduino-A4982 Microduino-Motor is a motor drive controller with the PWM control function. It can be used to control dual full bridge low voltage stepper motor, single or dual DC motor, widely applied in smart car and robot control. Feature Internal PWM current limit control Synchronous rectifier, capable of reducing power consumption Under-voltage lockout Low RDS（on）output Dc motor braking mode Sleep function Overcurrent protection Overheating Shutdown Small size Specification 20 pins 4 mm×4mm×0.75mm size With QFN package and naked pads for enhanced cooling 100% Matte tin plated pin Electrical specifications VCC voltage：5V VMOT voltage：2.5~9V Pin Description Microduino Motor Pin Microduino Pin Function SLEEP Microduino IO port Sleep logical input, low active IN1 Microduino IO port Control input IN2 Microduino IO port Control input IN3 Microduino IO port Control input IN4 Microduino IO port Control input VMOT Connect external power external power to motor VCC VCC power to A3906 and Microduino GND GND Common Ground 文件:A3906-Pinout-1.jpg Microduino-A3906-Pinout Document Driver chip：A3906 文件:A3906-Datasheet.pdf Development DC motor wiring Connect one DC motor to OUT1A,OUT1B, the other to OUT2A,OUT2B. DC motor control mode IN1 IN2 IN3 IN4 OUT1A OUT1B OUT2A OUT2B Function 0 0 0 0 Off Off Off Off Close 1 0 1 0 High Low High Low Forward 0 1 0 1 Low High Low High Backward 1 1 1 1 Low Low Low Low Stop Step motor wiring Connect step motor to Microduino Motor module: The four-wire two-phase step motor has two sets of coil A and B. Each group of coil's resistance is very small, only a few ohm. A and B group are absolute insulated and disconnected. Just use a multimeter to measure, the one connected belongs to one group. After identifying the A and B group, just connect one group to (OUT1A, OUT1B), the other to (OUT2A, OUT2B). Step motor control mode IN1 IN2 IN3 IN4 OUT1A OUT1B OUT2A OUT2B Function 0 0 0 0 Off Off Off Off Disabled Disabled 1 0 1 0 High Low High Low Full Step 1 1/2 Step 1 0 0 1 0 Off Off High Low 1/2 Step 2 0 1 1 0 Low High High Low Full Step 2 1/2 Step 3 0 1 0 0 Low High Off Off 1/2 Step 4 0 1 0 1 Low High Low High Full Step 3 1/2 Step 5 0 0 0 1 Off Off Low High 1/2 Step 6 1 0 0 1 High Low Low High Full Step 4 1/2 Step 7 1 0 0 0 High Low Off Off 1/2 Step 8 Application Program download Test program：文件:Program Test A3906.zip A3906 contorls two DB motors Use Microduino core and Microduino A3906's control function; Prepared hardware: Microduino FT232R,Microduino Core, Microduino Motor and two DC motors as well as a power supply(2.5~9V); Prepared software: Microduino test program(Arduino part) and Arduino IDE(version 1.0 and higher)； Start Arduino IED，open the Microduino test program, choose "Microduino Core (Atmega328P@16M,5V)" and download directly； How to make a pegboard with Microduino core and Microduino Motor connected： Set up the circuit on pegboard as follows (blue line at the bottom) 文件:A3906.png Pegboard connection Microduino Motor drive DC motor test: Connect 5V or 9V power, the motor don't rotate initially: Start Arduino IED serial monitor Input 0000, enter, two motors don't rotate Input 0101, enter, Two motors rotate forward Input 0110, enter, one motor rotates forward and the other backward Input 1001, enter, one motor rotates backward and the other forward Input 1010, enter, two motors rotate backward Input 1111, enter, two motors stop Bug History Pictures front back Video