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Scripts by Iulian/htmaa_serial_arduinoA0withLED.ino

+// Sends 3 numerical values to the serial port, and reads one numerical value (then turns onboard LED if that value is >0)
+
+void setup() {
+  // put your setup code here, to run once:
+  Serial.begin(9600);
+
+  pinMode(A0, INPUT);
+  pinMode(13, OUTPUT);
+}
+
+
+void loop() {
+
+  // SEND TO COMPUTER 3 integer values separated by comma
+
+  int data0 = analogRead(A0);
+  int data1 = 123;
+  int data2 = 456;
+  
+  Serial.print(data0);
+  Serial.print(",");
+  Serial.print(data1);
+  Serial.print(",");
+  Serial.print(data2);
+  Serial.println();
+
+  delay(100); // a bit of delay so the communication buffer doesn't get overloaded
+
+
+  // RECEIVE FROM COMPUTER a text value that gets converted into int
+  while (Serial.available()) {
+    String s = Serial.readStringUntil('\n');
+
+    // TURN ON LED if the value from computer is >0
+    int x = s.toInt();
+    if (x > 0) {
+      digitalWrite(13, HIGH);
+    } else {
+      digitalWrite(13, LOW);
+    }
+  }
+}