Automatic control and display of Room temperature

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hello every one and i hope they all ok could u help me


A temperature sensor is to be interfaced with a PC and an output signal is to control the flow of hot air into the room. A high level language

could i use by this way , by use PIC 16F877 and i thing this chip because there is A/D (analog to digital)convertor.and the PIC 16F877 it will read the temperature from temp sensor LM35 , i thing this LM35 because it's more sensitive to tempreture and the output is constant 10mv/1c and it's linear , then it will convertor to digital then send to PC by serial port.

now the problem i do't know how to do the program in a high level language?

is this my way right. and how to do the program?

thank you very much

best regards