List of posts

 In this article we will consider the modified version of this metal detector -   VINTIK-PI (ver.2). (See the previous…

Metal Detector Circuit Metal detectors can be classified based on their operating principle into these three categories: BFO, TR/IB, and…

Metal Detector BT1e The pulse detector BT1e is a completely revised version of the BT1 in which all previous improvements…

Pulsdetektor Minipuls-3 Minipuls-3 is the highlight of the Minipuls series. This detector is analog/digital hermaphrodite. However, it can be expanded…

Pulsdetektor Tiny Tiny was built into a small plastic case. The batteries can be found in the cover. There is…

DIY Metal Detector based Arduino Nano Metal detector, sounds a bit high-end, below we just use an Arduino, 10 meters…

JTAG Basics What is JTAG ? JTAG (Joint Test Action Group, Joint Test Action Group) is an international standard test…

Programing a new ATmega328p with Arduino This article describes how to program the brand new ATmega328P chip with an Arduino…

Arduino Metal Detector A metal detector is a safety device that detects potentially harmful metals. Previously we have made very simple metal…

Metal detector on Arduino Pro Mini Reworking of the Kolokolov-Shchedrin deep-well scheme. Differences from the original circuit: 1. There is NO…

HAND-HELD METAL DETECTOR Those who used metal detectors know how convenient a pinpointer is - a small hand-held metal detector…

SIMPLE METAL DETECTOR WITH DISCRIMINATION The Pirate and other similar impulses are good for everyone - high repeatability, simplicity of the circuit,…

In this article, we use the Arduino development board and ultrasonic sensor to design a radar model for detection and…

Pirat – stands for:  PI – means a pulse metal detector, and RAT – author’s site: “radioscot” . This metal…

    Pulse metal detector "Pirate" Recently, such an activity as the search for various old coins, household items, and…

Arduino Digital Multimeter Premium version 2.0.0 added The new version 2.0.0 supports USB connection with OTG cable. For more information…

Simple metal detector for beginners   Earlier we looked at various schemes of metal detectors. They can be viewed in the…

simple metal detector with 2 NE555 Many radio amateurs dream of assembling a simple metal detector with their own hands…

DIY metal detector A metal detector or metal locator is a device that locates metal containing objects in a dielectric…

  Tesoro Lobo metal detector is an amusing device. I will not touch on its operating frequency, this is a separate topic. But…

Pulse PI-AR metal detector based on stm32f103c8t6 microcontroller. The name is taken from the words PI - pulse principle of operation, AR - abbreviated from ARM…

Metal detector Qasar on the AVR microcontroller The Quasar metal detector is a microcontroller-based IB metal detector designed with available…

Consider another homemade metal detector called "VLF Madera metal detector" that requires a minimum investment and not so much knowledge…

Tesoro Golden Sabre Light TLSL. The goal of this post is to consolidate some of the material from the extremely…

In this post, we will discuss the famous Metal detector PI Polonese (PI polonese AFRICA V4). The original device has…

Here you find how to make a classic LED bar (strip) voltmeter without using any microcircuits and MK. It turned…

Old-style hard drives (not SSDs) use very good brushless BLDC motors. And it often happens that the propeller itself has…

Using the device, you can remotely android control RGB LED strip (or RGB LEDs) via any Android device with an…

The Tesoro Eldorado Metal detector  is considered as a powerful metal detector, it is able to detect a 25 mm…

A good oscilloscope is too expensive equipment for an ordinary electronic amateur, for whom soldering microcircuits and repairing electronics (Ex:…

Smart Hunter Metal Detector on a Smartphone"Smart Hunter Metal Detector on a Smartphone" is a project that will help you…

Spirit pi wireless metal detector based Arduino is an impulse metal detector. This metal detector is based on an Arduino…

The used app is designed to connect simple metal detector circuits to the iPhone via the headphone jack. This homemade…

A redesigned version of the well-known impulse metal detector - "Pirate", but on Arduino. Has good sensitivity even for small coins. Stable…

Metal detector PI Polonaise Pi polonaise metal detector one of detectors which have a number of advantages over detectors working…

Simple and reliable metal detector If you have lost the ring, key, screwdriver ... and you know the approximate place…

GOLDEN MASK 4 pro Welcome, dear readers , here we always try to collect more metal detectors that can be…

Building the search DD coil for Induction Balance metal detectors The name of this Coil DD comes from the similarity…

This is probably the simplest frequency meter built on the ATtiny2313 microcontroller . It allows you to measure frequencies up to 10 MHz in four automatically…

In the world of radio amateurs, especially during repairs and building a new devices, you should have a device for…

Capacitors work without problems, but sometimes they encounter power failures or malfunctions. If the problem is noise, then there is a simple solution,…

Considering that the efficiency of the LM317 regulator is low and the heat generation is important, it is intended to…

DIY simple obstacle avoiding car This simple obstacle avoiding car uses ultrasonic waves for distance measurement and determines the direction…

Universal Charger PIC16F877A The device Charger PIC16F877A  is made on a PIC16F877A microcontroller and C++ programming language, SDCC compiler. Able…

Pinpointer G-NOME  After reading interesting articles about  metal detectors, I found this pinpointer based on a small but intelligent microcontroller…

Pinpointer KB_V3_VCO This Pinpointer KB_V3_VCO is a simple precision target location device that can be manufactured at home. It has…

Pinpointer MINIMAX-PP-II This device is a precise Pinpointer indicator for the exact location of the detected metal. The principle  working…

Pinpointer Microcontroller PIC12F675 Based The time spent  to locate the small objects detected by a metal detector (pulsed metal detectors),…

Pinpointer FM-2 v2 In present post we show the method for building the most simple metal detector Pinpointer FM-2 V2.…

 Pinpointer Velleman k7102  Drilling a hole in the walls with an electrical conductor or buried cable can turn into a…

Pulsed metal detector White SurfPI Pro, which is used for underwater search by professional. Fully sealed to a depth of…

After a few months of research for the problems of discrimination and "Coil Error" in the Felezjoo PI, I finally…

“Hammerhead” is a pulse induction (PI) metal detector design. It is intended primarily as a learning platform for experimenters, and…

The microcontroller-based pulse induction metal detector Tracker PI appeared on the market back in 2003, and immediately gained immense popularity…

Terminator 3 is a coin searching metal detector that operates according to the induction balance principle (IB). The “Terminator-3” scheme…

In this article I will describe the laser Print -iron method (Toner Transfer method) for the production of printed circuit…

This  USB programmer is built on the Atmega8 microcontroller, it is  easy to manufacture, it can be assembled with your…

The “Chance PI” metal detector uses the 1602 LCD display. We will connect the display to the microcontroller on the…

According to  reviews on the Internet, the spider coil can work with any pulsed metal detectors, but for proper processing…

Chance PI PCB for DIP version (Sprint Layout 6) Chance PI PCB with MCP3201 SMD (Sprint Layout 6) Chance PI…

If you want to work with the AVR micro-controllers, you have to get a programmer. This article describes the simplest…

We continue to build "Chance", after all the parts are soldered to the board, it's time to start programming the…

Chance PI PCB for DIP Version (Sprint Layout 6): Download Chance PI PCB for SMD Version (Sprint Layout 6) : Download…

The scheme of the device: The scheme of control buttons:

The metal detector is built on an ATmega8 microcontroller , paired with an MCP3201 AD converter . Judging by the reviews on the Internet, this…

After a long search on the Internet, I stopped at Metal Detector Chance PI. Since it was made by the…

This document is intended to demonstrate one method of constructing Concentric Co-planer coils. While it is targeted toward the home…

Download Partlist Download PCB for TL074 (Sprint Layout 6)Download PCB 1 for TL072 (Sprint Layout 6)Download PCB 2 for TL072…

It is designed to search for larger metal objects at a deep depth. Today, in the article we will examine…

Download VINTIK-PI diagram (Splan7) Download VINTIK-PI PCB Layout (Sprint Layout 6) Download VINTIK-PI diagram (JPG)

Solder the board with pure rosin or alcohol-rosin solution. After soldering with a toothbrush, wash off the rosin residues with alcohol.After…

Download this PCB with Sprint Layout 6

Transistors, ICs, diodes Qt Capacitors Qt Resistance Qt Other Qt TL074CN one 2200.0 x 25v one 470 (1W) 2 3.5…

Pulsed metal detector "VINTIK-PI" based on three ICs and four transistors, designed to search for small metal objects at great…

Detailed step by step assembly (with photos) of the PIRAT metal detector Insert the parts according to the attached instructions,…

This metal detector-the 'Pirate'- was originally designed by a Russian forum.It's a pulse induction (PI) type detector.basic components are :Integrated…

Options for PCB layout pirate, from its developers, on a chip and transistors. Board in the format of Spring Layot…

The metal detector circuit consists of two main components:  transmitting and receiving .The transmitting node consists of a pulse generator…

Pirat - stands for:  PI - means a pulse metal detector, and RAT - author's site:  "radioscot" . This metal…

Download DIP PCB for IDX pro (Sprint Layout 6) Download DIP PCB for IDX pro with POTs connected (Sprint Layout…

Original PCB designed with Sprint Layout Version 6 Download this PCB with Sprint Layout 6 Original PCB version SMD designed…

Original diagram of the WHITES IDX PRO metal detector Audio tones ad-don (mod) The VDI module is connected now (Mod)

Download PCB 1 layout (Sprint Layout) Download PCB for print Download schematic 1 Download PCB parts placement Download Partlist Download…

PIM-2 Pulse download filesDownload Sprint layout for this PCB Download Sprint layout for this PCB

The metal detector PIM-2 is a digital version of the analog pulsed MD Delta Pulse developed and commercialized by LugaTek…

Description of the main operating modes of MD "KROM2-M" Power up krot2 A splash screen appears Then "information" mode (last…

KROT Partlist Z80 for the DIP Version RefDes Type Value X1 1602A C1 C_5X10 0.33* C2 POLCAP_200 470.0 C3 POLCAP_200…

Partlist for Z79 Version of KROT2-XM RefDes Type Value C1 C_5X10 0.33* C2 POLCAP 470.0 C3 POLCAP 100.0 C4 C_0805…

KROT BCB Version Z79 MD_KROT2_3V7 PCB LAYOY  MD_KROT2_Key_Board _Z79 PCB Partlist  KROT PCB Version Z80 KROT2_Z80_DIP PCB Layout KROT2_Z80_DIP_Panel PCB…

The boards are made by Sprint-Layout version 6 format, the link to the download of the working version of this…

Diagram  MD Below we provide the  M circuit and PCB All this can be downloaded in one archive, fee in…

USBasp Programmer Firmware and circuit The following packages include circuit and firmware. usbasp.2011-05-28.tar.gz (519 kB) . usbasp.2009-02-28.tar.gz (260 kB) usbasp.2007-10-23.tar.gz…

USBTiny-MkII SLIM programmer (AVRISP-MKII clone) supports all Attiny, Atmega, and Xmega µcontrollers. It has three programming interfaces: ISP, PDI, and…

•The MENU includes 6 options. • 1) VOLUME. Here we adjust the volume of the audio signal to levels 0…

Some years ago a have started building Clone PI AVR. Made a PCB, soldered all the components and … and…

Download PCB (Sprint Layout) Download the PCBs files with Sprint Layout PCB 1 (Sprint Layout) PCB 2 (Sprint Layout) PCB…

Resistors Capacitors Diodes and Transistors ICs and Others R1 390 R2 20 R3 390 R4 10k R5 10k R6 1k…

PCB and Schematic files Firmwares PCB for Clone_PI-W.lay6 Schematic  ClonePI-W.pdf PCB for clone + PCB Keys.lay6 Clone_PI_W_Hex_Files.rar PCB For clone_PI-W.rar…

The purpose of the buttons does not depend on the firmware version. S1 "Barrier -" / "Guard interval-" S2 "Barrier…

Assembling the metal detector Clone PI W do it yourself Assembling the metal detector, you should start by selecting the…

To assemble Clone Pi W we need the following details : Microcontroller Atmega8-16PU (8A-16) - 1 pc chips CD4066 -…

All PCB are made with Sprint Layout : Download Her

There are three best and repeatedly proven schemes that differ only in key chips:● scheme with ADG444● circuit with КР590КН2…

Datasheets for lm317.pdf datasheets/lm350.pdf datasheet-max1551-1555.pdf datasheet-lp2951.pdf datasheet-mcp73831.pdf datasheet-4054.pdf datasheet-tp4056.pdf datasheet-1734.pdf datasheet-mcp73812.pdf datasheet-ncp1835.pdf

A fully integrated solution is offered  by NCP1835B, providing high stability of the charging voltage (4.2 ± 0.05 V). Perhaps…

Also very simple scheme. The charge current is set by the resistor R_prog (for example, if you put a 3…

The microcircuit is made in the SOP-8 package (see datasheet ), has a metal heat sink on its belly that…

Very simple scheme, great option! Allows you to charge a current of up to 800 mA (see the description of…

Chip allows you to create the right chargers, moreover, it is cheaper than the untwisted MAX1555. A typical wiring diagram…

Stabilizer LP2951 is manufactured by National Semiconductors (datasheet). It provides the implementation of the built-in current limiting function and allows…

MAX1551 / MAX1555 - specialized chargers for Li + batteries that can operate from USB or from a separate power…

Scheme of a simple charger based on the LM317 chip with a charge state indicator: The scheme is the simplest,…

The most correct way to charge lithium batteries is to charge in two stages. This method is used by Sony…

As everyone knows, the micro-controller is controlled by a program recorded in its internal memory. Then for a beginner metal…

The author of this programmer is the German Thomas Fichl, a page of its development with diagrams, files of printed…

USBasp is a USB in-circuit programmer for Atmel AVR controllers. It simply consists of an ATMega88 or an ATMega8 and…

One of the simplest AVR programmers is a LPT port programmer. This is due to the fact that the signal…

Atmel has designed AVR microcontrollers for maximum flexibility of programs.There are three ways to load a program into AVR microcontrollers…

In modern electronic circuits, microcontrollers are increasingly used. What can I say, if today you do not even find an…

Among the owners of pulsed metal detectors Coil  sensors enjoy deserved fame. It is with their help that it is…

This coil  allows you to get more depth, but it is more difficult to manufacture. And so - we take…

The great advantage of this metal detector is the ease of manufacture of the sensor. In the simplest case, it…

You can assemble your first pulse metal detector and, here, it came to manufacturing a search mono coil. And if…

Caluclate the parameters of Pulse Induction metal detectors Multi-turn loop of wire for metal detectors can be represented as a…

The search coil is a vital part of your metal detector. It is the flat, typically circular disk, which generates…

The development of electronics goes at a rapid pace, and increasingly the main element of a device is a micro-controller.…

Batteries play an important role in any battery operated project/products. Rechargeable batteries are expensive, as we need to buy battery…

FelezJoo_Schematic FelezJoo_PCBs FelezJoo_Partlist FelezJoo_PI assembly FelezJoo_PI Programming FelezJoo PI System settings FelezJoo_PI Air Test FelezJoo_PI Ground Test FelezJoo_PI Download files…

http://www.youtube.com/embed/UgTki9I6DQM?http://www.youtube.com/embed/c7S3ACgc3SE?http://www.youtube.com/embed/60qjU_TfSvE?http://www.youtube.com/embed/60qjU_TfSvE?

In this article, we will go over how to program an AVR chip for FelezJoo metal detector using a USBASP…

For enter in Felezjoo menu, press OK to enter in the System settings. Using the up and down keys, you…

If you have done the exact PCB and prepared the necessary parts, you can  start building your FelezJoo PI by…

Capacitors--------------------------------------------------------------------------------------------  C1……………………….  10uF-16v electrolytic C2,  C3 ……………………….18pF ceramic C4, C5, C7, C8, C9, C14 ……………………..….100nF (or Code 104) ceramic C18,…

FelezJoo_SchematicFelezJoo_PCBsFelezJoo_PartlistFelezJoo_PI assemblyFelezJoo_PI ProgrammingFelezJoo PI System settingsFelezJoo_PI Air TestFelezJoo_PI Ground TestFelezJoo_PI Download files

FelezJoo_SchematicFelezJoo_PCBsFelezJoo_PartlistFelezJoo_PI assemblyFelezJoo_PI ProgrammingFelezJoo PI System settingsFelezJoo_PI Air TestFelezJoo_PI Ground TestFelezJoo_PI Download files

Metal  Detector Whites IDX Pro  - is an analog metal detector operating on the basis of the IB induction balance principle. The device…

KROT2 PI Schematic KROT2 PI PCBs Partlist for Z79 Version of KROT2-XM KROT2 Partlist Z80 KROT2 Menu Settings KROT2 Download…

Clone Pi AVR is a simplified and improved version, popular with the amateur radio detector Clone PI . Since the…

The PI-W clone is a simplified and cheaper version of the Clone PI-AVR Pulsed Metal Detector (MD micro-ontroller) (which has…

This metal detector (FelezJoo PI) is very simple and powerful and I think it is the best system that has…

Metal detectors are used in a wide range of applications from landmine detection to safety in airports, office buildings or…

Metal detectors can be useful in many situations, but they tend to be expensive. Don’t let that stop you from…

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