Connecting a 20x4 HD44780 Compatible screen to a raspberry pi, Fixing contrast issues with a 3300ohm resistor and modifying example code of the 16x2 tutorial to work with ine 3 and 4
Hardware Purchased:
https://www.jaycar.com.au/dot-matrix-white-on-blue-lcd-20x4-character/p/QP5522?pos=10&queryId=68a9de3f8497d29e5c4d1b10ef5cfde8&sort=relevance
Original Tutorial:
https://tutorials-raspberrypi.com/raspberry-pi-lcd-display-16x2-characters-display-hd44780/