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Crowtail- Haptic Motor


The Crowtail-haptail Motor is using little DRV2605 motor driver form TI. Its designed specifically for controlling haptic motors - buzzers and vibration motors. Normally one would just turn those kinds of motors on and off, but this driver has the ability to have various effects when driving a vibe motor. For example, ramping the vibration level up and down, 'click' effects, different buzzer levels, or even having the vibration follow a musical/audio input.

Mode: CRT00349H

Crowtail- Haptic Motor.jpg


  • Specifically for controlling haptic motors- buzzers and vibration motors

  • Follow a musical/audio input

  • Support LRA (Linear Resonance Actuator) and ERM (Eccentric Rotating Mass)

  • Works with both 3V and 5V power/logic


  • Dimensions(mm):20.0(L)x20.0(W)x6.8(H)

  • Crowtail IIC interface

  • motor : round or flatte 10*2.7MM

  • using little vibration pancake ERM


We have set the pin to IIC interface and have a library for you to use, so it's usage pretty simple.

1.Hardware Connection

Connect the Crowtail- Haptic Motor to IIC port of the Crowtail - Basic Shield using a 4 pin cable .Then connect Arduino to PC by using a USB cable.


2.Softwart Connection

Download DRV2605 library for Arduino boards; Unzip and put it in the libraries file of Arduino IDE by the path: ..\arduino-1.0\libraries;

Upload it into your Arduino board and observe the vibration of the motor.

#include <Wire.h>
#include "DRV2605.h"

DRV2605 drv;

void setup() {
  Serial.println("DRV test");


  // I2C trigger by sending 'go' command 
  // default, internal trigger when sending GO command

uint8_t effect = 1;

void loop() {
  Serial.print("Effect #"); Serial.println(effect);

  // set the effect to play
  drv.setWaveform(0, effect);  // play effect 
  drv.setWaveform(1, 0);       // end waveform

  // play the effect!

  // wait a bit

  if (effect > 117) effect = 1;