Difference between revisions of "Microduino-Module Motor"

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*20 pins
 
*20 pins
 
*4 mm×4mm×0.75mm size
 
*4 mm×4mm×0.75mm size
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*With QFN package and naked pads for enhanced cooling
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*With QFN package and naked pads to dissipate heat.
 
*100% Matte tin plated pin
 
*100% Matte tin plated pin
  
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Test program：'''[[File:Program Test A3906.zip]]'''
 
Test program：'''[[File:Program Test A3906.zip]]'''
  
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===A3906 contorls two DB motors===
+
===A3906 controls two DB motors===
 
*Use Microduino core and Microduino A3906's control function;
 
*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 hardware: Microduino FT232R,Microduino Core, Microduino Motor and two DC motors as well as a power supply(2.5~9V);

Latest revision as of 03:55, 4 August 2017

Language: English  • 中文
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 to dissipate heat.
  • 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
Microduino-A3906-Pinout

Document

Driver chip：A3906 File: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：File:Program Test A3906.zip

A3906 controls 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)


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

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