DC5V 0.27A 8025 Double Ball Cooling Fan with XH2.54-2P 30CM Cable Size:80*80*25MM 3 in 1 Black Aluminum Heat Sink for Raspberry Pi 4B This hands-on kit provides all

This hands-on kit provides all the essential components needed to assemble a working metal detector capable of sensing metallic objects

Slide heat-shrink tubing over each joint and shrink with a heat gun for insulation and strain relief

Microcontroller Pull-Up and Pull-Down Networks: Essential for GPIO pin biasing in Arduino

The device includes overvoltage detection that reports faults via I²C status registers

Press the power button and verify the LCD display illuminates

DC5V 0.27A 8025 Double Ball Cooling Fan with XH2.54-2P 30CM Cable Size:80*80*25MM 3 in 1 Black Aluminum Heat Sink for Raspberry Pi 4B This hands-on kit provides allDC5V 0. 27A 8025 Double Ball Cooling Fan with XH2. 54 2P 30CM Cable Size: 80*80*25MM