I am very new to the Photon coming over from Arduino. I am making a RFID scan in system for a project to replace a current system. The RFID integration was super easy and I love the simplicity, the integration of the LCD is not going so well.
I have this LCD display:
Using the LiquidCrystal library and the example project following their pin layout (no i2c chip) and I am not able to get it up and running. They ONLY change I have made is to set the screen size to a 20x4 vs. a 16x2. Even leaving the 16x2 doesn’t work. Screen is lighting up and 10k pot is working just fine… but only first and 3rd line are showing character placement (just boxes).
I’ve been scouring the internet trying to find an example to get this working with no luck. Any thoughts?