EMF Circuit Board Module

For this we will be using Ghost Gear’s EMF circuit board module and adding an external LED. The EMF circuit board module has adjustable sensitivity, built in LED lights, a digital output, an analog output, a buzzer, and a selectable output level.

The EMF circuit board is a modular piece of hardware. Designed to detect EMF as low as 3 mG. Modular hardware is where a circuit is split into modules instead of one component. In electronics, its splitting a circuit into several PCB’s or printed circuit boards.

Supplies

EMF Circuit Board Module by Ghost Gear

220 Ohm resistor

an LED

Soldering Iron with Solder

Open the static sealed bag containing the EMF circuit board.

Get a 9V battery clip and solder it to the pos and neg voltage input connectors. Make sure to connect the pos and negative correctly. The circuit board will have a + and – labeled on it.

solder a 220 ohm resistor to the digital output. A resistor is not direction specific.

solder the positive side of an LED (long leg) to the resistor and the negative leg to the neg side of the digital output ( - ).

adjust the sensitivity to your liking by turning the potentiometer.

select your digital output level by placing the jumper into the desired position.