How to Use PWM Vibration Motor Sensor Module Switch: Examples, Pinouts, and Specs

The PWM Vibration Motor Sensor Module Switch is an electronic component designed to provide haptic feedback in the form of vibrations. It is commonly used in devices where a physical response is needed to alert or provide tactile feedback to the user, such as in mobile phones, gaming controllers, and wearables.

• User interface feedback
• Alarms and notifications
• Haptic feedback for touch screens and buttons
• Robotics and automation for sensory feedback

• Operating Voltage: 3.3V to 5V
• Control Input: PWM (Pulse Width Modulation)
• Vibration Strength: Proportional to PWM signal
• Current Consumption: Depends on the vibration intensity and frequency

1. Connect the VCC pin to a 3.3V or 5V power supply from your Arduino Uno.
2. Connect the GND pin to one of the GND pins on the Arduino Uno.
3. Connect the SIG pin to a PWM-capable digital pin on the Arduino Uno (e.g., D3, D5, D6, D9, D10, or D11).

• Ensure that the power supply voltage matches the module's requirements.
• Use a PWM signal to control the intensity of the vibration.
• Avoid continuous operation at high vibration levels to prevent overheating and potential damage to the motor.

// Define the PWM pin connected to the SIG pin of the module
const int pwmPin = 9;

void setup() {
  // Set the PWM pin as an output
  pinMode(pwmPin, OUTPUT);
}

void loop() {
  // Increase vibration intensity gradually
  for (int i = 0; i <= 255; i++) {
    analogWrite(pwmPin, i);
    delay(10);
  }
  // Decrease vibration intensity gradually
  for (int i = 255; i >= 0; i--) {
    analogWrite(pwmPin, i);
    delay(10);
  }
}

This example code gradually increases and decreases the intensity of the vibration motor by varying the PWM signal.

• Motor not vibrating: Check connections and ensure the PWM signal is being sent.
• Weak vibrations: Ensure the power supply is adequate and the PWM signal is within the correct range.
• Motor overheating: Reduce the duty cycle of the PWM signal or allow intervals of rest.

• Double-check wiring, especially the VCC and GND connections.
• Use a multimeter to verify the PWM signal from the Arduino Uno.
• Implement a "soft start" by gradually increasing the PWM value to avoid sudden high current draw.

Q: Can I use a digital pin that is not PWM-capable to control the motor? A: No, you need to use a PWM-capable pin to control the intensity of the vibrations.

Q: What is the maximum PWM frequency that can be used? A: The maximum PWM frequency depends on the specific motor and the Arduino's capabilities. Typically, a frequency around 1 kHz is a good starting point.

Q: How do I change the pattern of vibration? A: You can change the pattern by adjusting the PWM signal in your code to create different vibration effects.

Q: Is it possible to control multiple vibration motors with one Arduino Uno? A: Yes, as long as you have enough PWM-capable pins and your power supply can handle the current draw of multiple motors.