A Dallas DS1820 1-wire temperature sensor provides and an Olimex ATMega development board. If you’re not so handy with the soldering side, you can pull this one off. The device can be programmed ...

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 ...