I love using the PCA9685 servo motor driver boards for my silly robots. Sometimes I even use them for more serious projects like a robotic hand to show a proof of concept prosthetic sensor. Either way these inexpensive PWM driver boards are I2C, have a separate line for the motor power, and have solder jumpers to change the I2C address! That last one is my favorite because who doesn’t want to hook up 20+ SSD1306 screens on a project? 😀
Anyways Adafruit used to support micropython but they have shifted to circuitpython.
I don’t like circuit python so i’m sticking with micropython.
As a tinkerer, hacker, and tryin’ to be do gooder’, I often want to make sure that my projects can be completed with relative ease for me and anyone wanting to try something similarly silly as my designs. I chose micropython.
The main reason I use micropython is because the drivers for periphrial devices are written in plain ol’ python or micropython instead of a compiled file. The benefit of python on microcontrollers is the REPL environment and the lack of need to compile anything.
Have a question about a module? Just poke at it with ‘dir()’.
https://github.com/adafruit/micropython-adafruit-pca9685
So if you just snag the pca9685.py and the servo.py file from this repository and put them on your micropython board you can call them easily such as this:
from machine import I2C, Pin
import servo
servos = servo.Servos(I2C(scl=Pin(37),sda=Pin(39)))
servos. Position(0,us=1500)
