PI metal detector (Project)

Attention! This is not a real device - only project for direct manufacturing (PCB and assembling)

Version 1 and 2 are included

The different between versions is only design of the PCB

Pulse induction metal detector

Model on the New Hobby: NH-250

Type of the components: THT

Number of layers: 2

Dimension of the PCB: 84 x 97 mm

The downloadable ZIP file contain the files:

Gerber

Drill

BOM

Pick and Place

High resolution schematic

List of components

Short manual

PCB files for printing (top and bottom)

No any brands on the board.

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Low reaction for stones, consists iron and ferrous oxides

Possibility to use small, normal and big coils

Easy mounting in a box

You can use this metal detector for:

- General purpose metal detector 

- Searching on the beach 

- Underwater metal detector 

- Searching meteorites 

- Searching gold (nugget) 

- Detector for deep searching

Characteristics:

Model on New Hobby: NH-250

Principle: Pulse Induction

Mode: non-motion

Discrimination

Search coil: RED (not included, choose diameter from the site)

Indication: LCD display, sound

Ground compensation

Power: 18V,  reverse polarity protection (Also you can use 4-12V battery with DC-DC Step Up Power Module like NH-202)

Low battery alarm

Consumption: 140 mА

Dimensions of PCB: 84 x 97 mm