Robotic arm with servos and mini joysticks
sudo i2cdetect -y -l
sudo i2cdetect -y 1 ^M pip3 install -r requirements.txt ^M Install board (from circuit python)
https://learn.adafruit.com/circuitpython-on-raspberrypi-linux/
installing-circuitpython-on-raspberry-pi
ls /dev/i2c* /dev/spi*