Most of them – everything from the ATMega 168, 328, 32u4, to the ATtiny85 and 84 have a temperature sensor right on the ... [Connor] is able to output the temperature of the microcontroller ...

The 4 to 20 mA can travel the longest distance without degradation and hence it is the most commonly used range; in addition it is relatively immune to external noise signals and is often used as a ...