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Haptic Motor Driver Module

Haptic Motor Driver Module is a module that can be used to drive a haptic motor. The module is based on the DRV2605L haptic motor driver IC. The DRV2605L is a versatile haptic driver that can be used to drive a linear resonant actuator (LRA) or an eccentric rotating mass (ERM) motor, providing a wide range of haptic effects. The module is designed to be used with compatible STEMMA QT connectors and qwiic connectors.


Code Example​

note

The next example is only demostrative, you can find more examples in the DRV2605L GitHub Repository

from machine import I2C, Pin
import time

# Initialize I2C
i2c = I2C(0, scl=Pin(13), sda=Pin(12))  # Use appropriate pins for your board, e.g. RP2040 (Pico)
drv = DRV2605L(i2c)

# Example usage
print("Initializing DRV2605L...")
drv.set_voltage(0x80, 0x90)  # Set voltage for 3.3V operation 
drv.select_library(1)        # Use ERM library

# Example: Ramp Effect
print("Playing ramp effect...")
drv.set_waveform(0, 47)  # Increment effect
drv.set_waveform(1, 48)  # Decrement effect
drv.set_waveform(2, 0)   # End sequence
drv.go()
time.sleep(1)  # Vibrates for 1 second
drv.stop()
print("Ramp effect completed.")

Getting Started​

Using the Module with Cocket Nova​

The module is compatible with the Cocket Nova board using the SDCC compiler. To get started, follow the official documentation to install the necessary tools and drivers:

Additional examples are available in the CH55X_SDCC_Examples repository.

Using the Module with ESP32 and MicroPython​

The module is also compatible with the DualMCU development board using MicroPython. Follow the official documentation to set up the environment:

Licensing​

This project is licensed under the GNU General Public License v3.0 (GPL-3.0) for all original work and modifications for Cocket NOVA. However, portions of the code are based on MCU Templates by wagiminator, which are licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License (CC BY-SA 3.0).

For more details, see:

This project is open source! Both the hardware and software are licensed under the MIT License for MicroPython: