Need HELP!!! Please!!! I am using a TMP36 sensor in my truck with an embedded Atmega328 chip and lcd display. Everything worked fine when I breadboard the circuit with an Arduino Uno. Once I made a prototype board and hooked it up to my truck, powered by a USB car charger, the temp readings fluctuate anywhere from -55F to over 90F. I do have a 220uF capacitor across pos. and neg. rails on the prototype board. Thanks
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