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TinyTacho - Simple RPM-Meter based on ATtiny13A

“Recently Great Scott built his DIY version of a tachometer which I thought was very cool. But using an ATmega for this job, I found a bit overpowered. So I tried to force all tasks (measurement, calculation, I²C protocol and OLED display) into the huge 1KByte memory of an ATtiny13A.”

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