A simple sensor in Arduino

by andrea 07:37 0 commenti arduino tools

	int incomingByte = 0; // for incoming serial data
	// the setup function runs once when you press reset or power the board
	void setup() {
	// initialize digital pin 7 as an output.
	pinMode(7, OUTPUT);
	// set up Serial library at 9600 bps
	Serial.begin(9600);
	}
	// the loop function runs over and over again forever
	void loop() {
	// send data only when you receive data:
	if (Serial.available() > 0) {
	// read the incoming byte:
	incomingByte = Serial.read();
	// say what you got:
	Serial.print("I received: ");
	Serial.println(incomingByte, DEC);
	// if incomingByte == '3' ON
	if (incomingByte == 51){
	Serial.println("ON");
	digitalWrite(7, HIGH); // turn the LED on (HIGH is the voltage level)
	}
	// if incomingByte == '4' OFF
	if (incomingByte == 52){
	Serial.println("OFF");
	digitalWrite(7, LOW); // turn the LED on (HIGH is the voltage level)
	}
	}
	// read the input on analog pin 1:
	int sensorValue = analogRead(A1);
	// Convert the analog reading (which goes from 0 - 1023) to a voltage (0 - 5V):
	float voltage = sensorValue * (5.0 / 1023.0);
	// print out the value you read:
	Serial.println(voltage);
	delay(1000);
	}

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