Hello all, I have been trying to create a diy RPM gauge for a 2 stroke motorcycle. I am not a very good at electricity so I just followed a guide. Bellow are the circuit I used: [sensor] [schmittrigger] [20240117_190904] My problem is once I start the motor the gauge "works" for a few seconds,…

Problem driving a tachometer gauge while listening for interrupts from a circuit

mr_doga January 30, 2024, 11:31am 4

The arduino was powered by a 5v phone charger and the 12v rail was powered by a battery pack.

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