(I shared that question in the past, but didn’t have the entire information to share, so I am sharing this again).
I have an UNO controller connected to a 16*2 LCD display, and the display is showing gibberish from unknown reason.
I replaced almost everything - the display itself, the UNO and also the screw-shield connected to it. It seems like all connections and soldering are OK, but some other reason is causing it.
1- a photo of how it looks.
2,3,4 - photos of the controller and display.
5- photo of second control box (relays and connections going out to the ‘real world’). This is in the first reply (from some reason it didn’t let me post it here).
Schematics (you can see control-box-1 , control-box-2, external-connections)
As much as I tried to cut on irrelevant pieces from the code, my message exceeded 9000 characters (upper limit), so it is attached as a PDF.
I appreciate your help!
CB code.pdf (81 KB)
V5.T.pdf (134 KB)