I have found out how to use a NE200B PIR IC chip to detect heat given off by a Human body, hands or face. This stops the problem with objects having to move to be detected, as the output is currently balanced between the outputs of both sensors. If however you cover up one of the sensors with a pi…

Heat sensor using PIR IC

Wawa October 5, 2021, 7:44pm 8

A grid-eye sensor is basically the same as the 2-element sensor used in PIR sensors.
Sparkfun has a grid-eye on a breakout board, with Arduino library.
Leo..

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Heat sensor using PIR IC

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