Arduino Clock without RTC

Arduino Clock without RTC

This is simple project arduino as RTC, by this project you can learn how to handle key inputs, lcd interface, lcd contrast, eeprom and changing pwm frequency.

pin 2 – lcd rs
pin 3 – lcd – enable
pin 4 – lcd – d4
pin 5 – lcd – d5
pin 6 – lcd – d6
pin 7 – lcd – d7
pin 9 – lcd – contrast

pin 10 – key 1
pin 11 – key 2

connect wiring as per about and dump code!!!

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