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Perhaps, a means of sensing the presence of mains voltage, the cessation of which instigates a "saveState" call to write the desired values to eeprom or SRAM, with a power-up routine to recover said values? In this case, a LiPo battery or super-capacitor could be used to provide the "operational ine...
- Mon Sep 25, 2017 4:15 pm
- Forum: Module Discussion
- Topic: Clock & Temp on 16x2 Display
- Replies: 4
- Views: 7698
I realize that this is an old thread, and I really don't have much experience with Arduino programming, however, I did spend some time patching together various example code blocks to do what the OP was attempting to achieve with the 16x02 LCD display. In my situation, the display used is a 40x02 di...