Most of them – everything from the ATMega 168, 328, 32u4, to the ATtiny85 and 84 have a temperature sensor right on the chip. [Connor] did a little bit of research on this sensor and came up ...

We’ve all heard of the smoke test, and we know that it’s the lowest ... that measures the opacity of his car’s emissions. The sensor itself is quite simple, and mimics what commercial ...