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TinkerKit Hall Sensor module View larger The picture may differ from the original

TinkerKit Hall Sensor module

T000070

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6,90 €

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A Hall Sensor creates a voltage related to the magnetic field around the sensor. This can be used to detect distance from a nearby magnet. Hall sensors can also be used to detect the magnetic field induced in a wire or coil.

 ejemplo de codigo

/*
  Analog input, digital output, serial output

 Reads an analog input pin; T000070 Hall Sensor connected to I0 reacts
 to the magnet direction and uses the result to light up a T010111 LED Module connected on O0.
 Also prints the value of the Hall Sensor to the serial monitor.

 created on 7 Dec 2010
 by Davide Gomba

 This example code is in the public domain.

 */

 #define O0 11
 #define O1 10
 #define O2 9
 #define O3 6
 #define O4 5
 #define O5 3
 #define I0 A0
 #define I1 A1
 #define I2 A2
 #define I3 A3
 #define I4 A4
 #define I5 A5

// These constants won't change.  They're used to give names
// to the pins used:
const int analogInPin = I0;  // Analog input pin that the Hall Sensor is attached to
const int digitalOutPin= O0; // Digital output pin that the LED is attached to

int sensorValue = 0;        // value read from the Linear pot

void setup() {
  // initialize serial communications at 9600 bps:
  Serial.begin(9600);
  pinMode(digitalOutPin, OUTPUT);
}

void loop() {
  // read the analog in value:

  sensorValue = analogRead(analogInPin);  

  if (sensorValue < 505) { // notice that the normal value of the sensor is 510
   digitalWrite(digitalOutPin, HIGH);
   } else {
   digitalWrite(digitalOutPin, LOW);
   }
  // print the results to the serial monitor:
  Serial.print("Hall Sensor Value = " );                      
  Serial.println(sensorValue);      

  // wait 10 milliseconds before the next loop
  // for the analog-to-digital converter to settle
  // after the last reading:
  delay(10);                    
}
 

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