The Hall Magnetic Sensor project showcases how to use an Arduino Nano to detect a magnetic field with a Hall sensor. This project will light up an LED when a magnetic field is detected. It is useful ...

The Vcc pin has to go into the Arduino/Power Supply 5v The GND pin has to go into the Arduino/Power Supply ground Connect TXD to digital pin 2 Connect RXD: Connect one resistor of 1k ohm to a jumper ...