0.1 uF capacitor from analog in to GND to cut down in noise. Over sampling followed by decimation (ie right shifting the summed results of a couple hundred reads by 7 bits, for example)Using a comparator to create a cleaner on/off transition
I have some kinkd of meter like this (much newer, but still it has only rotary star and numbers - no pulses or LED).Have you figured out any better way? Could you post photo of system working?PS: (And also - if you please could share the code for the electricity meter [which counts pulses and send them - i'm planning to use RF24].
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