onna ithin tika dawasak parakku unath aragena aawa tikak wadagath kiyala hithena deyak . ee thamai pic ic apima program karaganna hati kiyala denna hadanne. mama kalin post walin kiwwane pic gana podi wisthara tikak.danata ithin me circuit eka hadaaganna . eeta passe bariya thawa wadi wisthara igenaganna.

onna ithin oyaala danata menna me parts tika hoyaagannako. mama meke circuit diagram eka ikamanatama daannam. 

female com port - 1

22k - 1

2.2k - 2

10k - 1

5.6v Zener diod -d1

In4148 - 1

10 uf - 1

ic base (pin 18) - 1

oonna oya parts tika hoyaagannako. eeta passe mama meke circuit diagram eka daannam.