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Topic: old sketches not being overwriting on board (Read 894 times) previous topic - next topic



I seem to be having a problem with parts of old sketches that have been uploaded persisting in new uploads. eg: an earlier sketch had a custom character, now i've uploaded a completely new sketch and the custom character has popped up.
the problem has now got to the stage that the sketches a just coming out garbled on the LCD.

Is there some way to ensure the memory on the board is wiped clean?
Or is there some other problem i'm missing?

4x20 LCD (web4robot)
16 key keypad



never mind, it seems to be a problem with arduino 21, i go back to using 18 and it runs fine.
don't know why, but i'll stay using 18.

Cheers anyway.

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