Thermometer – Thermostat

Important! A bug found in the placement of transistors T1, T2, T3 in PCB. The correct is the reverse of the drawing in silkscreen. The schematic it’s ok.

A simple 2-digits thermometer with thermostat designed for central heating system. It uses the ATtiny2313 or the AT90S2313 and the DS1621 or DS1631 with some modifications Read more…

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