The Magnetic Hall Sensor
First tries without help
- My mistake: used printing and reading Sensor value Code from class and connected the wires to adruino into the wrong places
- got noise and weird number readings
- but funny that it somehow worked with seeing differences in the numbers when putting the magnet closer to the sensor
Next I followed the instructions from Magnetic Hall sensor, thats put up on this MediaWiki
- int ledPin = 13; // choose the pin for the LED
- int inputPin = 3; // Connect sensor to input pin 3
- int val = 0; // variable for reading the pin status
void setup() {
pinMode(ledPin, OUTPUT); // declare LED as output pinMode(inputPin, INPUT); // declare push button as input
}
void loop(){
val = digitalRead(inputPin); // read input value
if (val == HIGH) { // check if the input is HIGH
digitalWrite(ledPin, LOW); // turn LED OFF
} else {
digitalWrite(ledPin, HIGH); // turn LED ON
}
}
- Code was written correctly
- but nothing happend with the sensor (I hope I did not break it, while using the wrong code from before)
- noticed that there is no need for numbers to show up, the LED on the Sensor should have loght on and off.
- did not work