[SOLVED] ATtiny85, Timer, and Sleep - Arduino Forum
Hi Guys, I have made a light sensitive switch using an ATtiny85 to turn on battery powered leds when it gets dark and leave them on for 3 hours, switch it off for 9 hours and go back to waiting for it to get dark again. Version 1: lasted 3 days. . . . 1066 mA use per day and cooked 2 of my 18650 batteries. So I then took some time out to learn about power reduction. Version 2: I managed to reduce . . .
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