Reboot time on CFA634


New member
How long should I wait before sending commands after a reboot? I'm currently waiting 1000ms. Seems like a long wait.
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USB LCD Displays - Graphic and Character LCDs with a Keypad

CF Tech

There is not much for it to do when it wakes up, so it should not take too long.

I would guess that 100mS or 250mS would be long enough. Maybe try 100 and if that works bump it to 150 for a little margin.


New member
Well, before I went to 1000ms, I was up to 400ms, and it would still miss operations. I got worried that even if I found the magic number, that it wouldn't work with every other LCD. I'll switch to simply clearing the LCD later when the GUI's written and I can provide a way to reboot the LCD, so it's not a huge deal.