What's the best way to detect the magnet? Use another magnet. But it's not sensitive enough and you need to feel it by yourself.
This Hall Sensor senses nearby magnetic objects and sends a signal via digital output.
Note: It's a omnipolar magnet dectector so that it can not tell two polarities apart.
Specification
- Supply Voltage: 3.3V to 5V
- Indicator LED on board
- Interface: Digital
- Size:22 x 30 mm
Parts List
- Hall Sensor x1
- Cable x1
int ledPin = 13; // choose the pin for the LED int inputPin = 2; // choose the input pin int val = 0; // variable for reading the pin status void setup() { pinMode(ledPin, OUTPUT); // declare LED as output pinMode(inputPin, INPUT); // declare pushbutton 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 } }
Hall Sensor
- Brand: DFRobot
- Product Code: DFR-SEN0185
- Reward Points: 7
- Availability: 3
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£8.78
- Ex Tax: £7.32
- Price in reward points: 100
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