How to Use Haptic Feedback and Audio Exciter: Examples, Pinouts, and Specs

The Dayton DAEX-13-4SM is a compact and versatile haptic feedback and audio exciter designed to transform virtually any solid surface into a high-quality speaker or tactile feedback device. By utilizing vibration technology, this exciter eliminates the need for traditional speaker cones, enabling innovative audio and haptic applications.

• Haptic Feedback: Used in gaming controllers, VR devices, and touch interfaces to provide tactile sensations.
• Surface Audio: Converts surfaces like tables, windows, or walls into sound-emitting devices.
• Compact Audio Systems: Ideal for portable or embedded audio solutions where space is limited.
• Interactive Displays: Enhances user experience in kiosks, touchscreens, and smart devices.

The following table outlines the key technical details of the DAEX-13-4SM:

The DAEX-13-4SM has two connection terminals for electrical input. These terminals are used to connect the exciter to an audio amplifier or haptic driver circuit.

1. Power Requirements: Ensure the exciter is connected to an amplifier capable of delivering 3W RMS at 4 Ohms. Avoid exceeding the maximum power rating of 6W to prevent damage.
2. Surface Selection: Attach the exciter to a flat, rigid surface for optimal performance. Materials like wood, glass, or metal work well for audio applications, while softer materials may be better for haptic feedback.
3. Mounting: Use the adhesive backing to securely attach the exciter to the desired surface. Ensure the surface is clean and free of dust or grease for proper adhesion.
4. Wiring: Connect the positive (+) and negative (-) terminals of the exciter to the corresponding output terminals of the amplifier or haptic driver.

• Surface Properties: The material and size of the surface significantly affect the sound or haptic output. Experiment with different surfaces to achieve the desired effect.
• Amplifier Selection: Use an amplifier with a low distortion output to maintain audio quality and prevent damage to the exciter.
• Thermal Management: Avoid prolonged operation at maximum power to prevent overheating.
• Polarity: Ensure correct polarity when connecting the exciter to avoid phase issues in multi-exciter setups.

The DAEX-13-4SM can be used with an Arduino UNO for haptic feedback applications. Below is an example of how to control the exciter using a PWM signal:

• Connect the positive terminal of the exciter to the output of an NPN transistor (e.g., 2N2222).
• Connect the negative terminal of the exciter to the ground (GND).
• Use a 1kΩ resistor to connect the base of the transistor to a PWM-capable pin on the Arduino (e.g., Pin 9).
• Connect the emitter of the transistor to GND and the collector to the exciter.

// Example code to control the DAEX-13-4SM exciter using PWM
// Connect the exciter to a transistor circuit as described above.

const int exciterPin = 9; // PWM-capable pin connected to the transistor

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

void loop() {
  // Generate a PWM signal to drive the exciter
  analogWrite(exciterPin, 128); // 50% duty cycle for moderate vibration
  delay(1000); // Keep the exciter on for 1 second

  analogWrite(exciterPin, 0); // Turn off the exciter
  delay(1000); // Wait for 1 second before repeating
}

1. No Sound or Vibration:

   • Cause: Incorrect wiring or insufficient power.
   • Solution: Verify the connections and ensure the amplifier or driver is providing adequate power.

2. Distorted Output:

   • Cause: Overdriving the exciter or using a low-quality amplifier.
   • Solution: Reduce the input power and use a high-quality amplifier with low distortion.

3. Exciter Falls Off the Surface:

   • Cause: Poor adhesion or unsuitable surface.
   • Solution: Clean the surface thoroughly before mounting and ensure it is flat and rigid.

4. Overheating:

   • Cause: Prolonged operation at high power levels.
   • Solution: Operate within the recommended power range and allow cooling periods.

• Q: Can I use multiple exciters on the same surface?

  • A: Yes, but ensure they are wired in parallel or series as needed to match the amplifier's impedance requirements. Also, consider the phase alignment for optimal performance.

• Q: What surfaces work best for audio applications?

  • A: Hard, flat surfaces like glass, wood, or metal typically produce the best sound quality.

• Q: Can this exciter be used underwater?

  • A: No, the DAEX-13-4SM is not waterproof and should not be exposed to moisture.

• Q: How do I clean the adhesive backing?

  • A: The adhesive is not reusable. If it loses its stickiness, replace it with a new adhesive pad or double-sided tape.