PCA9685-Controller

Provides a means of communicating with one or more PCA9685 boards from a Raspberry Pi.

Requirements

• Raspberry Pi
• PCA9685
• Python 3

Installation

• I2C communication needs to be activated on the Raspberry Pi. Follow this guide to do this.

• The following python package also must be installed via this command:

  sudo pip3 install adafruit-circuitpython-pca9685

Example

To start a connection with the (or chained) PCA9685 board create an object with the following command:

from suitceyes import VibrationMotorDriver

# VibrationMotorDriver accepts a variable length of addresses of the i2c board.
with VibrationMotorDriver(0x41, 0x40) as driver:
    pass 

By using the with statement all vibrations are stopped once leaving the scope.

To trigger a vibration on a specific pin simply use the set_vibration(index, intensity) command. Intensity is a number between 0.0 and 1.0.

with VibrationMotorDriver(0x41, 0x40) as driver:
    # trigger vibration at index 16 (on board at address 0x40) at full intensity
    driver.set_vibration(16, 1.0)
    # wait one second 
    time.sleep(1)
    # trigger vibration at index 16 with half the intensity
    driver.set_vibration(16, 0.5)
    # wait one second 
    time.sleep(1)
    # mute vibration at index 16
    driver.set_vibration(16, 0.0)

Note that pins for the board at address 0x41 start at index 0 and go to index 15. Pins at address 0x40 then continue at pin 16 and go up to 31.