use C language

Part III: Add a switch that performs the function of STOP/START. If the system is ON and you press the switch the system will turn OFF and display the message "SYSTEM STOPPED". If the system is OFF and you press the switch the system will turn ON. For example: The system is initially ON. Then you pressed the switch: the system will turn OFF. Then you released your finger from the switch: the system will still be OFF. Then you pressed the switch again: the system will turn ON. Then you released your finger from the switch: the system will still be ON. And so on. Serial.print(sensorVal): float voltage =( sensorVali1024.0) 5.5.0; for 10bit ADC, 210m1024 Serialprint(" Volts: 7) Serial.print(voltage): Serial.print[", degrees C: 77 fioat temperature =(voltage)4100; Serial.printin(temperature); If (temperature >= baseline Temp \&\& temperature > - baseline Temp+2 as temperature