Robodo Linear Hall Magnetic Module For Arduino AVR PIC Electronic Components Electronic Hobby Kit

"Linear Hall magnetic module and a digital interface, built-in 13 LED build a simple circuit to produce a magnetic field warning lamp 13 comes with digital interfaces of the LED, the linear Hall sensor magnetometer access number 3 interface, when linear Hall magnetometer Sensor senses a key signal, LED lights, otherwise off. The following is the routines source code for your reference. int Led = 13 ;// define LED Interface int buttonpin = 3; // define the linear Hall magnetic sensor interface int val ;// define numeric variables val void setup() { ???pinMode(Led, OUTPUT) ;// define LED as output interface ???pinMode(buttonpin, INPUT) ;// define linear Hall magnetic sensor output interface } void loop () { ???val = digitalRead(buttonpin) ;// digital interface will be assigned a value of 3 to read val ???if(val == HIGH) // When the linear Hall sensor detects a magnetic signal, LED flashes ???{ ??????digitalWrite(Led, HIGH); ???} ???else ???{ ??????digitalWrite (Led, LOW); ???} } "