In this archive is included an example code in proton basic compiler how to implement NE555 as temperature regulator.Working principle is based on the change of resistance of variable resistor NTC. Changing its resistance changes and the frequency generated by the NE555 timer and then with analog electronics, temperature remains within certain limits.-In this archive　is included an example code in proton basic compiler how to implement NE555 as temperature regulator.Working principle is based on the change of resistance of variable resistor NTC. Changing its resistance changes and the frequency generated by the NE555 timer and then with analog electronics, temperature remains within certain limits.