Termómetro de 3 níveis com led RGB baseado no sensor de temperatura LM35, alimentação 3xNiMH

Simple centigrade thermometer with 1 RGB led and based on LM35 temperature sensor. If T<=15ºC led turns on blue; if T>15ºC and T<=25ºC led turns on green; if T>25ºC led turns on red. Supply 3xNiMH