Matrix user forums

I am starting to play with e blocks again. I thought the simple program attached should just display the A/D input and therefore be a number between 0 and 255 on the glcd. However, when you increase the pot it gives the expected response but when you decrease it you get numbers above 255. I am not sure if it is a schoolboy error on my part or a problem with the glad component. Any help appreciated.

Pete

Are you clearing the area you are printing to get rid of the previously displayed information? If not the last digit of a 3 digit number might still be visible when then value has only two digits (or two digits if the new value has only 1 digit)

Hi Pete,
I agree with Jac whats causing the issue.
I have attached one way of clearing.
Here is another.

Martin

thank you both. I knew it was likely to be me!

Pete