A portable Arduino timer. Has two different modes: one where it counts up, and one where it counts down. The user interface is done through an LCD screen, and the input comes from 2 push buttons. The ...
to sample the Pulse Sensor with consistent and regular timing. The code is setup to read Pulse Sensor signal at 500Hz (every 2mS). The reasoning for this can be found ...
“Arduino Self-Timer” project presented here is a low-component count 60 seconds countdown timer. It can be powered from a 9V compact battery or suitable Arduino AC mains adaptor. Working of the ...
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