I have just built two LCD Message Board Kits, both work okay except both have the same fault.The units when powered show the running Velleman message, pressing ‘Enter’ shows ‘Edit Message’ i can then edit the message but after editing the message and finishing the process by pressing the ‘Enter and Down button’ together to exit ‘Exit Message’ nothing happens, the ‘Edit Message’ stays on the board and the Vellaman message is still there! Being a Professional Engineer who spent some of his apprenticeship repairing PC Boards, i know the assembly of the boards is correct and to make sure i have checked every joint and component for correct value etc, etc. What i am wondering is whether the PIC Chip has had it’s code locked or is there a fault with the kit! I would be grateful for any advice to solve this problem so i can change the message to say ‘Happy Christmas’ which is what i intended to do.
Sorry I missed your topic, i was on a holiday
I don’t suspect it’s a faulty chip because everything else works.
Can you make a video of you editing the message?