/*
Hall Sensor
The Hall Sensor [T000070] is connected to I0 and reacts
to the magnetic field polarity changing its analog output.
When there is no magnetic field the sensor read a value around 512,
going to the north pole cause an increasing of the value while going to
south cause a decreasing of the value.
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
modified on Dec 2011
by Federico Vanzati
This example code is in the public domain.
*/
// include the TinkerKit library
#include <TinkerKit.h>
TKHallSensor hs(I0); // creating the object 'hs' that belongs to the 'TKHallSensor' class
// and giving the value to the desired input pin
TKLed led(O0); // creating the object 'led' that belongs to the 'TKLed' class
// and giving the value to the desired output pin
void setup()
{
// initialize serial communications at 9600 bps
Serial.begin(9600);
}
void loop()
{
// Read the analog value of the Hall Sensor and print on the serial monitor
Serial.print("Hall Sensor Value = ");
Serial.println( hs.get() );
// with polarity() we can know if the magnetic field
// is going to NORTH or SOUTH without read the analog value
if (hs.polarity() == NORTH) {
led.on();
}
if (hs.polarity() == SOUTH) {
led.off();
}
// wait 10 milliseconds before the next loop
// for the analog-to-digital converter to settle
// after the last reading:
delay(10);
}
