Motor Driver Module 2Ch Mini 1.5A 10V MX1508

Features

• Dual-channel motor driver
• Can control two DC motors or a bipolar stepper motor
• Maximum current of 1.5A per channel
• Voltage range of 2.5V to 10V
• Uses an H-bridge circuit to control the direction and speed of the motor
• Built-in protection features: overcurrent, overtemperature, undervoltage lockout
• Can be easily controlled by a microcontroller or digital circuits
• Uses PWM signals to adjust motor speed and logic signals to control the direction
• Compact and low-cost solution for controlling small motors
• Suitable for various applications such as robotics, automation, and hobby projects

Principle of Work

The MX1508 motor driver module works by using an H-bridge circuit to control the direction and speed of the motor. An H-bridge allows current to flow in two directions through the motor, enabling it to rotate both clockwise and counterclockwise. The module has two H-bridge circuits, one for each motor channel, allowing independent control of two motors. Motor speed is controlled by a PWM (Pulse-Width Modulation) signal from a microcontroller or digital circuits, which varies the duty cycle of the voltage applied to the motor. Motor direction is controlled by logic signals, which determine which side of the H-bridge is active and thus the current flow through the motor.

Pinout of the Module

• VCC: Power supply positive (2.5V to 10V)
• GND: Power supply negative and ground
• IN1: Input 1 for motor channel A
• IN2: Input 2 for motor channel A
• IN3: Input 1 for motor channel B
• IN4: Input 2 for motor channel B
• OUTA: Output for motor channel A
• OUTB: Output for motor channel B

Note: IN1 and IN2 control motor A direction and speed, while IN3 and IN4 control motor B. Connect OUTA and OUTB directly to the motor terminals.

Applications

1. Robotics: Control small motors for robot arms, grippers, or mobile robots.
2. Automation: Drive motors in conveyor belts, pumps, and valves.
3. Hobby projects: Control motors in RC cars, boats, and airplanes.
4. Educational projects: Teach motor control and microcontroller programming in labs or science projects.

Circuit

Connect the module to Arduino, motors, and power supply as shown below:

Library

No library is required.

Code

Arduino example to control MX1508 motors connected to module pins A1, A2, B1, B2 and Arduino pins 11, 10, 6, 5:

// Motor Driver Module 2ch mini 1.5A 10V MX1508
// Connections: A1 -> 11, A2 -> 10, B1 -> 6, B2 -> 5

#define A2 10
#define A1 11
#define B2 5
#define B1 6

void setup() {
  pinMode(A1, OUTPUT);
  pinMode(A2, OUTPUT);
  pinMode(B1, OUTPUT);
  pinMode(B2, OUTPUT);
}

void loop() {
  // Motor A forward
  digitalWrite(A1, HIGH);
  digitalWrite(A2, LOW);
  // Motor B forward
  digitalWrite(B1, HIGH);
  digitalWrite(B2, LOW);
  delay(1000);

  // Motor A backward
  digitalWrite(A1, LOW);
  digitalWrite(A2, HIGH);
  // Motor B backward
  digitalWrite(B1, LOW);
  digitalWrite(B2, HIGH);
  delay(1000);

  // Motor A stop
  digitalWrite(A1, LOW);
  digitalWrite(A2, LOW);
  // Motor B stop
  digitalWrite(B1, LOW);
  digitalWrite(B2, LOW);
  delay(1000);

  // Motor A forward at half speed
  analogWrite(A1, 128);
  digitalWrite(A2, LOW);
  // Motor B forward at half speed
  analogWrite(B1, 128);
  digitalWrite(B2, LOW);
  delay(1000);
}

1. Defines Arduino pins connected to module inputs for motor control.
2. setup() configures the pins as outputs.
3. loop() alternates motor direction and speed using digitalWrite() and analogWrite().
4. delay() sets timing between motor actions.

Technical Details

• 2-Channel mini motor driver
• Voltage Input: 2-10V DC
• Rated Current: 1.5A per channel
• Peak Current: 2.5A (less than 10 seconds)
• H-bridge direction and PWM control
• Dimensions: 24.7 x 21 x 5mm
• Weight: 5g

Resources

• Datasheet

Comparisons

The MX1508 module and L293D module are both dual-channel motor drivers but differ in:

1. Maximum current: MX1508 supports 1.5A per channel; L293D supports 0.6A per channel.
2. Voltage range: MX1508 supports 2.5V–10V; L293D supports 4.5V–36V.
3. Control signals: MX1508 uses PWM and logic signals; L293D requires two logic inputs and no built-in PWM.
4. Circuit design: MX1508 uses compact H-bridge design; L293D uses traditional H-bridge with different components.

MX1508 is more versatile with higher current and precise control, while L293D is simple and reliable for basic motor control.