Member #743077

Member Since: November 23, 2015

Country: United States

  • thank you.

  • Hello, I have a bunch of these sensors and I hooked them up to my Arduino Uno. I have measured the voltage and the current drawn from the 5v source and I got these values: * Vcc = 4.94V * Icc (current through the Vcc line) ~= 36mA I have noticed that the back of the sensor, right beneath the optic cell, gets significantly hot. I have tried 4 different sensors and all exhibit the same behaviour. Is this normal? or should I get worried?

    Other than that, the sensor works as expected. Tested with different surfaces and different distances to the surface and it performs perfect. I was not able to measure the actual temperature with a probe but it feels pretty hot when I touch it with my finger. Double checked the connections, just to make sure all is good.

    Best regards, Dan

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