Monthly Archives: August 2019

Hammerhead PI metal detector

“Hammerhead” is a pulse induction (PI) metal detector design. It is intended primarily as a learning platform for experimenters, and as a base design on which to expand. This design is very much like other commercial PI detectors, which tend to have similar circuit designs, so it has the potential for good performance.This project includes a layout for a simple …

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Tracker PI-2 metal detector

The microcontroller-based pulse induction metal detector Tracker PI appeared on the market back in 2003, and immediately gained immense popularity among users. Then the circuit received some improvements, and several versions of firmware were released including and deep and from the “first Tracer” appeared Tracker PI-2, Koschey 2I and Koschey 4IG. Koschey 2And this is a commercial metal detector (its …

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Terminator 3 metal detector

Terminator 3 is a coin searching metal detector that operates according to the induction balance principle (IB). The “Terminator-3” scheme was developed based on the Tesoro metal detector. However, there are significant differences from these metal detectors, both in its work principle, in the process of its manufacture or configuration. The main advantage of the Terminator-3 metal detector is the …

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Toner Transfer PCB method

In this article I will describe the laser Print -iron method (Toner Transfer method) for the production of printed circuit boards PCB, which I myself have been using for quite some time. This method is described on many sites, but since you can already read on my site right here. Toner transfer method Step  1. Draw a board on the …

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AVR-910 programmer

This  USB programmer is built on the Atmega8 microcontroller, it is  easy to manufacture, it can be assembled with your own hands. In fact, this is the AVR-910 of the popular scheme. USB programmer is reliable and has in its a magic function that allows you to recover microcontrollers with incorrectly installed firmwares. It should be noted that for burning …

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Chance PI assembling

The “Chance PI” metal detector uses the 1602 LCD display. We will connect the display to the microcontroller on the board via a 4-bit parallel interface. I will reproduce part of the scheme with the connection of the display. You can use a cable from the HDD drive as the wires for connecting the display, its pin header just went …

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Spider coil

Spider coil for induction pulse metal detector

According to  reviews on the Internet, the spider coil can work with any pulsed metal detectors, but for proper processing of discrimination and selection, you need to make the coil as close as possible to the parameters of the author’s coil. The result should be a coil with a small parasitic capacitance, with the following parameters: L = 400 uH, …

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Chance PI download files

Chance PI PCB for DIP version (Sprint Layout 6) Chance PI PCB with MCP3201 SMD (Sprint Layout 6) Chance PI PCB for Keyboard (Sprint Layout 6) Chance PI PCB SMD version MCU-DIP (Sprint Layout 6) Chance PI schematic and information Chance PI firmawre v0.22 Chance PI firmawre v0.4 Chance PI firmawre v0.7 Chance PI firmawre v0.8 Chance PI firmawre v0.82 …

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AVR Serial programmer 2

Chance pI progamming uniprog

If you want to work with the AVR micro-controllers, you have to get a programmer. This article describes the simplest ISP programmer for AVR microcontrollers that works with a convenient program for flashing UniProf controllers (AVR serial Programmer). This programmer is referenced to page: Link The version PCB  layout of the programmer under SMD components is attached. On the developer’s site you …

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