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AtTiny85 put in sleep mode and awaken through a 4N35 optocoupler | DIY eBike battery by curiosityBikes
GitHub - microchip-pic-avr-examples/avr128da48-cnano-sleep-modes-mcc: This repository showcases the different sleep modes of the AVR DA microcontroller through USART commands.
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How to deep sleep ATtiny/ATmega (to run for years with batteries) but still detect a button press? - Arduino Stack Exchange
![ELE22MIC Lecture 18 The AVR Sleep Modes The ATMEGA128’s Timer System –Clock Sources –The 8-bit Timer 0 Modes –Clear Timer on Compare match (CTC) –Two ELE22MIC Lecture 18 The AVR Sleep Modes The ATMEGA128’s Timer System –Clock Sources –The 8-bit Timer 0 Modes –Clear Timer on Compare match (CTC) –Two](https://img.pdfslide.net/img/1200x630/reader011/image/20190124/56649f0b5503460f94c1f0c3.png?t=1636373062)