Interface GPS module with pi 4, GPS with RPi4, GPS Raspberry Pi 4, Raspberry Pi 4 GPS, NMEA in RPi4 Welcome to the next tutorial of our raspberry pi four programming course. Before, we saw how to connect a Raspberry Pi 4 to a relay with four independent channels. To complement the relay circuit, we programmed a python script to turn on and off a single bulb. However, in this tutorial, we'll show y ...