doorbeel aruino yun 16 volts, 10 watts AC (yep, AC, not DC) to 5 volts DC
I have a project, to replace my doorbell
i finished my project and it works perfectly but i have one problem how can i save my code in the sd card (memory) to not lose the data if the power gose off. (bittrey gose out or power cut e.x.) The code i use is:
can enyone help me tis this problem please.