Recent posts

    Clone PI-AVR metal detector
    July 26, 2019

    Clone PI-AVR Metal Detector

    Clone Pi AVR is a simplified and improved version, popular with the amateur radio detector Clone PI . Since the…
    Induction Balance Metal Detectors
    December 9, 2021

    Simple metal detector for beginners needs only TL074

    Simple metal detector for beginners   Earlier we looked at various schemes of metal detectors. They can be viewed in the…
    Pulse Induction Metal Detectors
    November 3, 2021

    Pulse PI-AR metal detector based on STM32f1

    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…
    Pulse Induction Metal Detectors
    September 7, 2024

    Deep metal detectors based on Tracker PI

    Deep metal detectors based on Tracker PI We have received numerous questions about using very large (more than 0.5×0.5m) coils…
    PIM-2 PI metal detector
    August 1, 2019

    PIM-2 Pulse PCBs

    PIM-2 Pulse download filesDownload Sprint layout for this PCB Download Sprint layout for this PCB
    Pirate PI metal detector
    August 3, 2019

    Pirate PI download page

    Download Partlist Download PCB for TL074 (Sprint Layout 6) Download PCB 1 for TL072 (Sprint Layout 6) Download PCB 2…
    Search coils
    December 16, 2019

    Coil DD for induction balance metal detectors

    Building the search DD coil for Induction Balance metal detectors The name of this Coil DD comes from the similarity…
    Underground imaging devices
    September 1, 2024

    The Conrad GR-3 Plus

    The Conrad GR-3 Plus The Conrad GR-3 Plus is a highly advanced metal detector that has gained popularity among hobbyists…
    Search coils
    July 28, 2019

    Basket Coil for Pulse Induction

    This coil  allows you to get more depth, but it is more difficult to manufacture. And so – we take…
    Search coils
    August 5, 2019

    Spider coil

    According to  reviews on the Internet, the spider coil can work with any pulsed metal detectors, but for proper processing…
    Pulse Induction Metal Detectors
    August 17, 2022

    Pulse detector Minipuls-3

    Pulsdetektor Minipuls-3 Minipuls-3 is the highlight of the Minipuls series. This detector is analog/digital hermaphrodite. However, it can be expanded…
    FelezJoo PI metal detector
    July 26, 2019

    FelezJoo Schematic

    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
    PIM-2 PI metal detector
    August 1, 2019

    PIM-2 Pulse download files

    Download PCB 1 layout (Sprint Layout) Download PCB for print Download schematic 1 Download PCB parts placement Download Partlist Download…
    Pulse Induction Metal Detectors
    August 17, 2022

    Pulse metal detector Tiny

    Pulsdetektor Tiny Tiny was built into a small plastic case. The batteries can be found in the cover. There is…
    Induction Balance Metal Detectors
    March 26, 2023

    Metal Detector Discrimination

    Introduction Metal detectors are devices used to detect the presence of metal. They work by sending an electromagnetic field into…
    IDX PI metal detector
    August 1, 2019

    IDX Pro schematic

    Original diagram of the WHITES IDX PRO metal detector Audio tones ad-don (mod) The VDI module is connected now (Mod)
    Induction Balance Metal Detectors
    June 16, 2023

    Metal detection and discrimination

    Metal detection and discrimination Input amplifier Synchronous detector and DC amplifier AC channel . Motion filter Target detection Metal Discrimination earth balance Unfortunately, after…
    Pulse Induction Metal Detectors
    May 11, 2021

    Metal detector PI Polonese

    Metal detector PI Polonaise Pi polonaise metal detector one of detectors which have a number of advantages over detectors working…
    Pulse Induction Metal Detectors
    August 23, 2024

    Pulse Star II Metal Detector

    Pulse Star II Metal Detector – Function Overview The Pulse Star II is a Pulse-Induction (PI) metal detector designed primarily…
    Pulse Induction Metal Detectors
    September 5, 2019

    SurfPI Pro metal detector

    Pulsed metal detector White SurfPI Pro, which is used for underwater search by professional. Fully sealed to a depth of…
    Search coils
    July 28, 2019

    Pulse Induction coil 1

    You can assemble your first pulse metal detector and, here, it came to manufacturing a search mono coil. And if…
    Chance PI metal detector
    August 5, 2019

    Chance PI programming

    We continue to build “Chance”, after all the parts are soldered to the board, it’s time to start programming the…
    Pulse Induction Metal Detectors
    September 15, 2024

    PIC Based Metal Detector

    Introduction This project is a metal detector using a frequency counting approach. It can generate an audio output, or connect to a…
    Clone PI-AVR metal detector
    July 31, 2019

    Clone PI-AVR Parts List

    Resistors Capacitors Diodes and Transistors ICs and Others R1 390 R2 20 R3 390 R4 10k R5 10k R6 1k…
    Clone PI-AVR metal detector
    July 31, 2019

    Clone PI-AVR Programming

    Some years ago a have started building Clone PI AVR. Made a PCB, soldered all the components and … and…
    Pulse Induction Metal Detectors
    May 27, 2021

    Spirit PI wireless metal detector based Arduino

    Spirit pi wireless metal detector based Arduino is an impulse metal detector. This metal detector is based on an Arduino…
    Pulse Induction Metal Detectors
    September 22, 2024

    Clone Pi AVR Metal Detector

    Clone Pi AVR Metal Detector As the warm weather approaches, I decided to make this, a little more serious than…
    Induction Balance Metal Detectors
    June 16, 2023

    The parameters of modern detectors

    The parameters of modern detectors Bounty Hunter Land Ranger Bounty Hunter Land Star Bounty Hunter Quick Draw II Bounty Hunter…
    Pinpointers
    November 12, 2019

    Pinpointer MINIMAX-PP-II

    Pinpointer MINIMAX-PP-II This device is a precise Pinpointer indicator for the exact location of the detected metal. The principle  working…
    Pulse Induction Metal Detectors
    June 13, 2023

    CASPER metal detector

    Casper “Каспер” is a modern microprocessor, universal pulsed metal detector. The device is designed to search for metal objects in…
    Pinpointers
    September 16, 2024

    Metal detector Tracker FM-1D3

    The main objective in developing the circuit is  to minimize the influence of the soil  on the search process and  increase the comfort…
    Induction Balance Metal Detectors
    September 18, 2024

    Metal detector “Megatron”

    Metal detector “Megatron”   This metal detector was developed by Evgeniy based on the “Terminator Pro”. The device has shown…
    VLF metal detectors
    May 29, 2021

    Tesoro Eldorado Metal detector

    The Tesoro Eldorado Metal detector  is considered as a powerful metal detector, it is able to detect a 25 mm…
    Pinpointers
    November 17, 2019

    Pinpointer G-NOME 

    Pinpointer G-NOME  After reading interesting articles about  metal detectors, I found this pinpointer based on a small but intelligent microcontroller…
    Pirate PI metal detector
    August 2, 2019

    Pirate PI metal detector

    Pirat – stands for:  PI – means a pulse metal detector, and RAT – author’s site:  “radioscot” . This metal…
    Pulse Induction Metal Detectors
    August 23, 2024

    Delta Pulse – Bulgarian Pulse Depth Detector

    Delta Pulse – Bulgarian Pulse Depth Detector The device operates by amplifying and registering weak signals after a powerful probing…
    FelezJoo PI metal detector
    July 26, 2019

    FelezJoo PI Download files

    FelezJoo PI Download files FelezJoo_Schematic FelezJoo_PCBs FelezJoo_Partlist FelezJoo_PI assembly FelezJoo_PI Programming FelezJoo PI System settings FelezJoo_PI Air Test FelezJoo_PI Ground…
    Pirate PI metal detector
    August 2, 2019

    Pirate PI Schematic

    The metal detector circuit consists of two main components:  transmitting and receiving . The transmitting node consists of a pulse…
    FelezJoo PI metal detector
    July 26, 2019

    FelezJoo PI Metal Detector

    This metal detector (FelezJoo PI) is very simple and powerful and I think it is the best system that has…
    Pinpointers
    November 5, 2019

    Pinpointer Velleman k7102

     Pinpointer Velleman k7102  Drilling a hole in the walls with an electrical conductor or buried cable can turn into a…
    Induction Balance Metal Detectors
    March 28, 2023

    Schatzsuche mit Metalldetektoren

    Andreas Gatowski’s “Schatzsuche mit Metalldetektoren” is a German language book that was first published in 1990. The book covers various…
    Uncategorized
    December 6, 2023

    Metal detector Thunder-4

      Metal detector Thunder-4 The device is designed for searching in “quiet” soils, following the principle – I hear everything.…
    Induction Balance Metal Detectors
    March 28, 2023

    Admiral Wave metal detector.

    The Admiral Wave is a metal detector produced by Treasure Products, a company that specializes in metal detecting equipment. The…
    Pulse Induction Metal Detectors
    September 6, 2024

    The Blind Squirrel Pulsed Induction Metal Detector

    The “Blind Squirrel” Pulsed Induction Metal Detector This is my version of a Pulsed Induction type of Metal Detector. I…
    Chance PI metal detector
    August 4, 2019

    Chance PI metal detector

    After a long search on the Internet, I stopped at Metal Detector Chance PI. Since it was made by the…
    Clone PI-AVR metal detector
    July 31, 2019

    Clone PI-AVR PCBs

    Download PCB (Sprint Layout) Download the PCBs files with Sprint Layout PCB 1 (Sprint Layout) PCB 2 (Sprint Layout) PCB…
    Chance PI metal detector
    August 5, 2019

    Chance PI assembling

    The “Chance PI” metal detector uses the 1602 LCD display. We will connect the display to the microcontroller on the…
    Pulse Induction Metal Detectors
    August 16, 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…
    Pulse Induction Metal Detectors
    September 16, 2024

    Metal detector ATTINY2313 microcontroller

    The “Zabava” (Metal detector on the ATTINY2313-20 microcontroller) uses the “frequency meter” principle. The metal detector operates in dynamic mode…
    VINTIK-2 PI metal detector
    August 3, 2019

    VINTIK-PI V2 PCBs

    Download this PCB with Sprint Layout 6

    Metal detectors

    Arduino projects

      September 18, 2024

      Kitchen timer on arduino

      Kitchen timer on arduino I want to say right away: 1  – I don’t know programming languages. That’s why I use Sergey Glushko’s wonderful program FLProg. 2 – I don’t brag about the code, which most likely turned out to be crooked and unoptimized. 3 – I just want to share my opinion on how a timer can work in my understanding. 4 – The circuit is powered by a network power supply, so be careful and follow safety precautions to avoid electrical injury. In an unequal fight with time, my mechanical timer in the kitchen stove decided to leave the chat. At first it…
      September 16, 2024

      Air Quality Monitor Arduino Meter

      DIY Air Quality Monitor – PM2.5, CO2, VOC, Ozone, Temperature and Humidity Arduino Meter Have you ever wondered about the quality of the air you breathe, or why you wake up tired after a full night’s sleep or sometimes feel sleepy at the office? Not only can bad air quality have negative health effects, it can also cause fatigue, headaches, loss of concentration, increased heart rate, and more. Monitoring the quality of your air may actually be more important than you think. So in this tutorial, you’ll learn how to build your own air quality monitor that can measure PM2.5,…
      September 16, 2024

      RFID Arduino based RFID Door Lock

      In this tutorial we will learn what RFID is, how it works and how to make an Arduino based RFID door lock. You can watch the following video or read the written tutorial below for more details. Table of contents Overview How RFID Works RFID and Arduino Arduino RFID Door Lock Access Control Project Source Code Overview RFID stands for Radio Frequency IDentification and it’s a non-contact technology that’s broadly used in many industries for tasks such as personnel tracking, access control, supply chain management, books tracking in libraries, tollgate systems and so on.[/column] How RFID Works An RFID system consists of…
      September 16, 2024

      Interfacing GT511C3 Finger Print Sensor (FPS) with Arduino

      Biometrics has been used as a reliable authentication system for a long time now. Today there exist complex biometric systems which can identify a person by his heart beat rhythm or even by his DNA. Other feasible methods include voice recognition, Face recognition, Iris scanning and Finger print Scanning. Out of which the finger print recognition is the most widely used method, we can find it from a simple attendance system to smart phones to Security checks and much more. In this tutorial we will learn how to use the popular GT511C3 Finger Print Sensor (FPS) with Arduino. There are many FPS…
      September 15, 2024

      Metal detector PIMD V2

      PIMD V2 Reworked the schematic to add an OpAmp (OPA2365). Added A0 to the signal output so I can look alternative signal processing options. This board uses an IRL540 instead of an IRF540, which reduces the MOSFET voltage drop. Here is the assembled Metal detector PIMD V2 board before testing:   Two Signal Processing Approaches ADC First we could go the ADC route, the board is setup for this. With a 1MHz clock, we can do samples every 13 to 14 us without losing accuracy. We can trade faster conversion for accuracy. Timer The current approach measures the time the…
      September 15, 2024

      STM32 Pulse Indiction Metal Detector

      This time I will show you how to make a STM32 Pulse Indiction Metal Detector which is based on ARM STM32 microcontroller, which has significantly better features than Arduino and is also cheaper. It can detect metal coih at distance of 30cm, and big metal object at distance of more than 80 cm. The positive thing is that you can install an Arduino bootloader on it, after that you can use it as a regular Arduino. This is my first project with this microcontroller and the experiences are very positive, and actually after flashing the bootloader there is no difference…
      September 15, 2024

      DIY Arduino Based Pulse Induction Metal Detector

      DIY Arduino Based Pulse Induction Metal Detector The detector can detect a small metal coin at a distance of 15 centimeters. DIY Arduino Based Pulse Induction Metal Detector Things used in this project Hardware components Arduino Nano R3 HC-05 Bluetooth Module General Purpose Transistor PNP General Purpose Transistor NPN Power MOSFET N-Channel Operational Amplifier, Op Amp + Comparator + Reference 1N4148 – General Purpose Fast Switching Capacitor 10 µF Capacitor 1 µF Single Turn Potentiometer- 100k ohms Single Turn Potentiometer- 100k ohm Single Turn Potentiometer-47 12 resistors with different values Hand tools and fabrication machines Soldering iron (generic) Pulse Induction…
      September 15, 2024

      Arduino Based Pulse Induction Detector

      Arduino Based Pulse Induction Detector – Flip Coil The Idea Having build some metal detectors in the past with varying results I wanted to explore the capabilities of the Arduino in that direction. There are some good examples of how to build metal detectors with the Arduino, some here as instructables. But when looking at them, they normally require either quite some external components for the analog signal treatment or the sensitivity is quite low. When thinking about metal detectors, the main topic is how to sense the slight changes of voltage in signals related to the search coil. These…
      September 15, 2024

      DIY a wall-climbing drone using ESP8266

      This project will share with you how to make an ESP8266 drone (this drone can climb walls) and how it works. We all know what the function of a drone is, which is to fly. If I tell you that this drone can climb up a wall or go underwater like a submarine, you will find it a bit magical. The author says that the drone introduced below can do it! A wall climbing project based on NodeMCU flight controller and controlled by Android app. Full details and explanation video. I believe you will love it. Drones require a flight…
      September 15, 2024

      Magnetic levitation desktop atmosphere light (Arduino+WS2812)

      Author: tomouwerkerkerk This is a small and warm floating desktop atmosphere lamp. The color-changing dim light adds a touch of gentleness to the room. It is built based on Arduino and 3D printed components. It is very easy to build and beginners who are interested can give it a try. Materials List Arduino Nano x 1 PLA material x several LED light strip (WS2812 60led/m) x several 12.7mm x 5mm Magnet x 2 5mm x 3mm magnet x 2 Magnetic switch x 1 5v plug x 1 5v power adapter x 1 Silicone wire x several Electric soldering iron x…
      September 15, 2024

      Smart Energy Consumption Meter

      Smart Energy Consumption Meter This is a smart system for managing the energy consumption of separate devices based on CT Sensor. Project description: Smart Energy Consumption Meter   Electricity is an essential part in the world. Nowadays electrical machinery is used every day, so the impact of the electricity consumption is an essential too. Here there is a smart device which connect with internet and shows the live energy consumption through a hosted website. However, it is also necessary to measure the power consumed by the customer, who is responsible for taking readings and generating billing. Here we have come…
      September 15, 2024

      Automatic pet feeding machine using Arduino

      Today, we are going to make an automatic pet feeder based on Arduino development board, which can automatically provide food to your pet in time. This project uses a DS3231 RTC (Real Time Clock) module to set the time and date when the pet needs to be fed. So, according to your pet’s eating schedule, the device will automatically put down or fill the food.   In this project, we use a 1602 LCD module to display the time, which is obtained by using a DS3231 RTC module connected to an Arduino UNO. In addition, it uses a servo motor…
      September 10, 2024

      Digital Taxi Meter Using Arduino

      Digital Taxi Meter Using Arduino  Nowadays, digital meters are gradually replacing analog meters in various sectors, whether it is electricity meters or taxi fare meters. The main reason is that the mechanical parts of analog meters are prone to wear after long-term use and are not as accurate as digital meters. A good example is the analog speedometer and odometer used on older motorcycles to measure speed and distance travelled. They have a special component called a pinion and rack arrangement where a cable is used to rotate the pins of the speedometer as the wheel rotates. This wears out…
      September 10, 2024

      DIY turbidity meter using sensor and Arduino

      In this tutorial, we will learn how to build a DIY turbidity meter by using a DfRobot turbidity sensor connected with an Arduino. Turbidity is a measure of the relative transparency of a liquid. It is an optical property of water and is a measure of the amount of light that is scattered by matter in the water when it passes through a sample of water. Arduino Turbidity Sensor is used in projects that involve monitoring the turbidity of water in rivers, streams, lakes, water bodies, catchment areas and research sites, laboratories, liquid tanks, etc. So, by interfacing this sensor…
      September 10, 2024

      Use Arduino to connect SX1278 (Ra-02) LoRa module

      It is estimated that by 2020, we will have 2.5 billion devices connected to the Internet. In other words, the number is more than three times the population of the earth today. This is most likely to happen as the concepts of IoT and Industry 4.0, IoT cars and smart cities spread rapidly. We already have some wireless protocols such as BLE, Wi-Fi, Cellular, etc., but these technologies are not suitable for IoT sensor nodes because they need to transmit information over long distances without using too much power. This has led to the rise of LoRa technology, which can…
      September 10, 2024

      Robotic arm Arduino board

      In this tutorial, we will learn how to make an Arduino robotic arm that can be wirelessly controlled and programmed using a custom Android app. I will show you the entire process of building it, from designing and 3D printing the robot parts, wiring up the electronics and programming the Arduino, to developing our own Android app for controlling the robotic arm. You can watch the video below or read the written tutorial below. Overview Using the sliders in the app, we can manually control the movement of each servo or axis of the robot arm. Also using the “Save”…
      September 9, 2024

      Arduino UNO full analysis

      This article mainly introduces how the Arduino development board works from a hardware perspective. Most articles cover Arduino software. However, a deeper understanding of its hardware design will help you take a solid step in your Arduino journey. Mastering the electronic design of Arduino hardware will help you learn how to embed Arduino into the design of the final product, including what parts should be kept and omitted from the original design. Component Overview The PCB design of the Arduino UNO development board uses all SMD (Surface Mount Device) components. I started to learn about SMD components when I was…
      September 9, 2024

      ARDUINO UNO WIFI REV2 Development Board

      Add WiFI to your device with the Arduino Uno WiFi development board. It is an enhanced version of the Arduino Uno Rev3: equipped with Microchip’s new 8-bit microprocessor and an onboard IMU (Inertial Measurement Unit). For WiFi connections, security is ensured using the new ECC608 encryption chip accelerator. Overview Add this board to your device and you’ll be able to connect it to a WiFi network using its secure ECC608 crypto chip accelerator. The Arduino Uno WiFi is functionally identical to the Arduino Uno Rev3, but adds WiFi and a few other enhancements. It uses a new 8-bit microprocessor from…
      September 9, 2024

      Burn Bootloader to AT328P-PU Arduino Uno

      The Arduino UNO development board is a great development platform for making a wide variety of entertainment devices and useful microcontroller circuits, but including a complete Arduino UNO development board assembly in each project can be very expensive. This article will focus on burning the Bootloader to the ATmega controller and then implementing Arduino Uno-like functions. With the instructions in this article, you can reduce this cost by 50% or more. What is an Arduino? Are you sure? It’s hard to live on Earth if you haven’t heard of Arduinos since 2003; love them or hate them, they’re everywhere. But…
      September 8, 2024

      How to make a fingerprint scanner using Arduino UNO

      Although you can use passwords and keys to access security systems, both methods are inconvenient and easy to forget. In this article, we will mainly learn how to use the FPM10A with the Adafruit Arduino library to make a biometric fingerprint system. Required Components ● FPM10A fingerprint module ● Arduino Uno development board ● Arduino IDE Installing and using the library The first step in using the FPM10A is to install the Adafruit Fingerprint Library, which can be done using the Library Manager. Open the Arduino IDE and navigate to Sketch > Include Library > Manage Libraries . When the Library Manager loads the…
      September 8, 2024

      Flash firmware on HM-10 BLE module using Arduino Uno

      You may encounter some very frustrating problems when using the BLE HM-10 module, such as you cannot send or receive AT commands, or you cannot pair the HM-10 with your smartphone. If you encounter these problems, then your BLE HM-10 module is definitely a clone version of the HM-10 module. However, after flashing a new firmware, it acts like a real BLE HM10 module and can be used as an original Bluetooth module. What is a cloned HM-10 module? The cloned HM-10 module is similar to the genuine HM-10 module. But in order to save extra cost in the manufacturing…
      September 8, 2024

      proximity sensor based on Arduino Uno

      This article discusses how to interface and use the VCNL4010 proximity/light sensor with the Arduino Uno development board. The use of proximity/light sensors is important in various applications including mobile devices and industrial controls. The VCNL4010 sensor is a fully integrated proximity and ambient light sensor. It is designed for short-range detection – no more than 200 mm – with an optimal distance of about 10-150 mm. It is easy to use with any I2C-capable microcontroller. It is 5V compliant, so you can use 3.3V or 5V without risk of damage. VCNL4010 proximity sensor. Choosing the right sensor To determine the…
      September 8, 2024

      MicroSD card adapter module Arduino Uno

      In this tutorial, we will introduce how to use the MicroSD card adapter module and the Arduino Uno development board to read and write SD cards. The main advantage of this module is that it can be used with the SD library that comes with the Arduino IDE. The SD library makes it very easy to initialize, read, and write to the card. List of Materials Required: – Arduino Uno development board – Jumper wires – MicroSD card adapter module – MicroSD card How to connect a MicroSD Card Adapter Module to an Arduino Uno? The module has a voltage…
      September 8, 2024

      Connecting ADC/DAC PCF8591 Arduino

      Analog to digital converters are a very important part in embedded electronics because most of the sensors provide output signals in the form of analog values ​​and the analog to digital converter feeds them into the microcontroller which can only understand binary values ​​and we have to convert these numbers into digital values. So to be able to process analog data, the microcontroller needs an analog to digital converter. Some microcontrollers have inbuilt ADC like Arduino, MSP430, PIC16F877A but some microcontrollers don’t have it like 8051, Raspberry Pi etc. We have to use some external analog to digital converter IC…
      September 8, 2024

      Arduino HM-10 Bluetooth control LED Android App

      Bluetooth is one of the most popular and easy to use wireless technologies. Over the years, the Bluetooth standard has undergone many upgrades to keep pace with the current technological changes and future technologies and to meet the needs of users. From Bluetooth version 1.0 to Bluetooth version 5.0, there are many changes, including higher data rates, low current consumption that can be used for IoT, improved security, etc. To learn Bluetooth communication, there are many modules that can be used, which can be connected with a microcontroller. One of the Bluetooth modules is HM10, which is based on Bluetooth…
      September 7, 2024

      Android non-contact smart infrared thermometer

      The current situation with COVID-19 remains serious. While everyone is doing their best to protect themselves, it is important to act responsibly and tackle this problem collectively. These days, it has become quite common in many public places and other gatherings to take everyone’s temperature as a precautionary measure to check for fever. The device used to do this is called a non-contact infrared thermometer. As many of you may have noticed, there has been a surge in demand for this product, but it is not difficult to make one yourself that not only serves its purpose but also offers…
      September 7, 2024

      Arduino Based RFID Door Lock

      In this article, we will learn what RFID is, how it works, and how to make an RFID smart door lock based on the Arduino development board. RFID stands for Radio Frequency IDentification , which is a contactless technology widely used in many industries for tasks such as personnel tracking, access control, supply chain management, library book tracking, and charging systems. How does RFID work? An RFID system consists of two main components, a transponder or a tag that is located on the object we want to identify, and a transceiver or reader. The RFID reader consists of a radio frequency module,…
      September 7, 2024

      Arduino Metal Detector with Metal Discrimination

      In this article, we will consider the creation of a metal detector based on the Arduino board with the ability to discriminate metals. This metal detector will be able to detect small metal objects (for example, coins) at a depth of up to 15 cm, and large metal objects it will be able to detect at a depth of up to 50 cm (and even more). It will also be able to distinguish iron-containing metals (ferrous) from non-ferrous metals (nonferrous). The metal detector has a fairly simple design and at the same time it provides acceptable sensitivity. Earlier on our…
      September 5, 2024

      Stepper motors and motors Arduino

      Stepper motors and motors Arduino 28BYJ-48 with driver ULN2003 In this article, we will talk about stepper motors in Arduino projects using the very popular 28BYJ-48 model as an example. Just like servos, stepper motors are an extremely important element of automated systems and robotics. They can be found in many devices nearby: from a CD drive to a 3D printer or a robotic manipulator. In this article, you will find a description of the stepper motor operation diagram, an example of connecting to Arduino using ULN2003-based drivers, and example sketches using the standard Stepper library. Stepper motor – operating…
      September 5, 2024

      servo drives in Arduino projects

      Arduino SG90, MG995, MG996 servos: wiring diagram and control In this article, we will talk about servo drives in Arduino projects. It is thanks to servo motors that ordinary electronic projects become robotic. Connecting a servo to an Arduino project allows you to respond to sensor signals with some precise movement, for example, open a door or turn sensors in the right direction. The article discusses issues of servo control, possible servo connection schemes to Arduino, as well as sketch examples. Servo for Arduino A servo motor is a type of drive that can precisely control the parameters of movement.…
      September 5, 2024

      Connecting a servo to an arduino

      Connecting a servo to an arduino Today it’s the turn of the servo motor or servo drive. Connecting a servo to an arduino What is the interest of the servo motor for us? Using the circuit from the previous lesson we can control it with the potentiometer knob. So if you have already forgotten the previous post or missed it, please check it out here.Connecting a Potentiometer. Sensors. Arduino Servo motors are remarkable in that with the help of control commands it is possible to set the motor shaft to a certain position. And this position will be maintained until…
      September 5, 2024

      Arduino sound wave ranging

      In this tutorial we will learn how the HC-SR04 ultrasonic sensor works and how to use it with Arduino. This is the most popular sensor for measuring distance and making obstacle avoiding robots with Arduino.     #include <Arduino.h> #include <U8g2lib.h> #include <Wire.h> #include <Ultrasonic.h> U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0,A5,A4, U8X8_PIN_NONE); // SDA:21 scl:22 Ultrasonic ultrasonic(2, 3); void setup(void) { u8g2.begin(); // 初始化超声波传感器 u8g2.enableUTF8Print(); // enable UTF8 support for the Arduino print() function } void loop(void) { u8g2.setFont(u8g2_font_wqy12_t_chinese3); // use wqy chinese2 for all the glyphs of “你好世界” u8g2.setFontDirection(0); u8g2.clearBuffer(); // 读取距离 float distance = ultrasonic.read(); // 打印距离（单位：厘米） u8g2.setCursor(10, 40); u8g2.print(“距离：”+String(distance)); // Chinese “Hello World” u8g2.sendBuffer(); delay(1000); }…
      September 4, 2024

      Measuring Fan Speed Using Infrared Sensors and Arduino

      In this article, we designed a digital tachometer using Arduino and an infrared sensor to measure the RPM (revolutions per minute) of a rotating fan. Simply connect the infrared sensor module to the Arduino and the 1602 LCD module to display the results. The infrared sensor module consists of an infrared emitter and receiver pair. Now, let’s explore how to measure fan speed using an infrared sensor and Arduino. A tachometer is an RPM counter used to measure the number of rotations per minute. There are two types of tachometers: mechanical and digital. In this article, we will design a…
      September 4, 2024

      Arduino-Based Automatic Watering System

      Smart Greenhouse – Arduino-Based Automatic Watering System With vacation time approaching, a decision needs to be made: either arrange for the neighbors to take care of your plants by giving them your house keys, or quickly come up with and build something akin to a “smart home.” More precisely, a “smart greenhouse” since we’re talking about plants. I’ll say right away that the neighbor option doesn’t appeal to me for several reasons, so I decided to dive into construction and modeling again. Like my previous DIY project, this one will be based on a cheap Arduino board, which I’ll program…
      August 23, 2024

      Metal detector on Arduino

      Metal detector on Arduino   playhop.com РЕКЛАМА•16+ Tap the Hamster – Clicker Hamster Kombat The game is made inspired by Hamster Kombat! Click on different types of hamste Find out mor Actually, this is not a classic metal detector, but a Pin Pointer. A traditional metal detector can detect a buried object and roughly determine its location. The pinpointer allows you to more accurately determine the location of the object, allows you to narrow the search area and accurately point to the metal. In addition, it can be used as a portable metal detector used to search people at checkpoints.…
      December 7, 2023

      Connecting Raspberry Pi to 4G network

      Connecting Raspberry Pi to 4G network In the Internet of Things IoT projects shared in the previous articles, we noticed that they usually have one thing in common: they rely on Wi-Fi hotspots and connect to the Internet network through this hotspot. Connecting to an Internet network via a Wi-Fi hotspot is perfect if you only want to use the end device at home or somewhere with access to a Wi-Fi hotspot. But what if you want to use the device anytime, anywhere, or place it in the field to collect data and transfer it to a server? In this case, you…
      December 7, 2023

      GPS tracker using A9G GPRS/GPS module

      GPS tracker using A9G GPRS/GPS module In this article, we will make a GPS tracker using the A9G GPRS/GPS module and Arduino development board. The A9G module GPS tracker based on Maduino is a product based on IoT (Internet of Things) solutions that integrates the microcontroller ATSAMD21G18 with the best power management and storage functions, and the GRRS/GSM+GPS module A9G. A GPS Tracker is a navigation device, usually carried by a moving vehicle or person, that uses the Global Positioning System (GPS) to track the device’s movement and determine its location. Recorded location data can be stored within the tracking unit or transmitted to…
      December 6, 2023

      Arduino and PN532 NFC module

      Arduino and PN532 NFC module In this article, we will use a development board based on Arduino and PN532 NFC module – Maduino Zero NFC board. Maduino Zero NFC board is an IoT solution based on Atmel’s 32-bit SAMD21 MCU and NXP near field communication controller PN532. This development board can be used in payment applications, entrance systems, and security system projects. Maduino Zero NFC is based on the Arduino framework, and users can use the Arduino IDE to program it quickly. This article will help you understand the basic usage of Maduino Zero NFC as well as hardware overview and programming. RFID…
      December 6, 2023

      Solar light controller based on Arduino development board

      Solar light controller based on Arduino development board This article mainly introduces a light sensing switch unit controlled by Arduino. Its main use is to control solar lights to turn on outdoors in darkness, but it can be used in many more applications. This guide will walk you through every aspect of the building process. This article has provided you with the code and schematics, so no prior knowledge of the Arduino unit is required. This project would be quite complicated to make without Arduino. This is a great example of how microcontrollers enable significantly less circuit complexity and less hardware trial and error. Main…
      June 23, 2023

      Georadar

      Georadar “Radalit”. General description, block diagrams, terminology Block diagram of the georadar “Radalit” Figure 1 shows a block diagram of the georadar (GR) “Radalit”. Fig.1. Block diagram of the georadar “Radalit” Functionally, the GR consists of five modules. The power supply and battery modules, VT1 and V3, provide power to the GR and charge the battery. The transmitter module, with the transmitting antenna B6, generates a probing pulse. The receiver module, with the receiving antenna B7, provides amplification of the reflected signal. The operation of these modules is controlled by the system unit or signal processing module. It also outputs the processed…
      August 16, 2022

      DIY Metal Detector based Arduino

      DIY Metal Detector based Arduino Nano Metal detector, sounds a bit high-end, below we just use an Arduino, 10 meters of copper wire, a 100 ohm resistor and a passive buzzer to make it. Detectors can be designed in various sizes and shapes as needed, the difference being the fabrication of the coils. It is still useful to make a small handheld probe for daily inspection of metal objects. Not only can you find small things like coins, but it can also be used to detect furniture joints, metal screws or nails used in wall decoration to help understand the structure. Arduino…
      August 16, 2022

      Programing a new ATmega328p with Arduino

      Programing a new ATmega328p with Arduino This article describes how to program the brand new ATmega328P chip with an Arduino Uno. This article includes the following: How to program the Bootloader for the  new ATmega328P through Arduino Uno How to Program ATmega328P with Bootloader via Arduino Uno materials needed Arduino Uno ATmega328P chipIf you bought a brand new ATmega328P, and then you want to program it, a natural idea is to unplug the chip that was originally plugged into the board, and then plug in the new one to start programming? ATmega328P chip Arduino Uno Unfortunately, this idea does not…
      August 15, 2022

      Arduino Nano Metal Detector

      Arduino Metal Detector A metal detector is a safety device that detects potentially harmful metals. Previously we have made very simple metal detectors without microcontroller , now we are building metal detectors using Arduino . In this project we will use coils and capacitors to detect metals. Here we have used Arduino Nano to build this metal detector project . This is a very interesting project for all electronics hobbyists. The buzzer will beep very quickly whenever this detector detects any metal nearby. Required components: Here are the components you need to build a simple DIY metal detector using Arduino . All of these components should be readily available at your local hardware store. Arduino (any) coil 10nF capacitor buzzer 1k…
      August 14, 2022

      What is Arduino

      What is Arduino Arduino is a convenient, flexible and easy-to-use open source electronic prototyping platform, including hardware (various types of arduino boards) and software (arduino IDE), suitable for artists, designers, hobbyists and those interested in “interaction”. friends. Arduino can perceive the environment through various sensors, and feedback and influence the environment by controlling lights, motors and other devices. The microcontroller on the board can be programmed through the Arduino programming language, compiled into binary files, and burned into the microcontroller. The programming of the Arduino is achieved using the Arduino programming language (based on Wiring) and the Arduino development environment…
      August 14, 2022

      Make Your Own Arduino Board

      Make Your Own Arduino Board In this DIY Project, I will show you how to Make Your Own Arduino Board using easily available components and a very simple build process. Using this approach, you can make a custom Arduino Board that suits your needs. Introduction If you are following ElectronicsHub for some time, you will notice that we love Arduino. Not only it is a simple and easy to use platform, but also there is a huge community of users, developers that make frequent and significant contribution (either to hardware or software).   Using Arduino, you can implement simple LED…
      August 7, 2022

      Metal detector on Arduino Pro Mini

      Metal detector on Arduino Pro Mini Reworking of the Kolokolov-Shchedrin deep-well scheme. Differences from the original circuit: 1. There is NO quartz oscillator on the k561 chip .. and quartz at 32 kHz. The 32 kHz signal is given by the Arduino Pro Mini. 2. Sound notification circuits on several microcircuits of the 561 series are also not present – Arduino also voices targets (And I must say it sounds excellent, compared to the author’s circuit). 3. Powered by unipolar voltage 12v (lead battery). 4. Sensitivity adjustment with buttons. With the ADC scale from 0 to 1023, the response threshold is adjustable from…
      August 1, 2022

      Controlling a 28BYJ-48 Stepper Motor Using ULN2003 Driver and Arduino Board

      Controlling a 28BYJ-48 Stepper Motor Using ULN2003 Driver and Arduino   Stepper motors are widely used to control many common devices we see every day. From blinds, 3D printers and DVD players to security cameras and CNC machines, stepper motors are closer to our lives than you might think.The first step in exploring stepper motors is to use the 28BYJ-48 stepper motor. They usually come with a ULN2003 based driver board which makes them very easy to use. Do you know how these stepper motors work? These stepper motors use a toothed wheel (which has 32 teeth) and four electromagnets that…
      July 29, 2022

      Mechanical sensors for Arduino

      Mechanical sensors for Arduino Content 1 Tact button module KY-004 [5] 2 Vibration sensor KY-002 [6] 3 Shock sensor KY-031 [8] 4 Turn sensor KY-020 [9] 5 Mechanical rotation sensor 6 Joystick KY-040 [16-17] The number of sensors designed to work with the Arduino platform is truly incalculable. If desired, you can purchase almost any ready-made module from a banal button to a radiation detector. These sensors can be purchased individually or in sets of various sizes. One of these relatively cheap kits can be purchased on Ali for $10. The kit comes in a plastic bag, some of the sensors, about a third were packed in individual bags. Together with…
      July 29, 2022

      LM317 and PWM control from Arduino

      LM317 and PWM control from Arduino There are very inexpensive ready-made voltage regulator modules, that is, a stabilizer based on LM317 chips . Here is a schematic diagram of the assembly and connection of such a module or a separate LM317 chip: Since this block follows the typical LM317 application circuit, it is great for powering small device projects or any other circuit requiring constant voltage. According to the documentation, the LM317 chip is an adjustable three-pin positive voltage regulator capable of delivering more than 1.5A in the output range from 1.25V to 37V. Only two external resistors are required to set the…
      May 21, 2022

      Radar prototype using ultrasonic sensors and Arduino

      In this article, we use the Arduino development board and ultrasonic sensor to design a radar model for detection and ranging. RADAR is an object detection system that uses radio waves to identify the range, height, direction, and speed of objects. The radio wave pulses emitted by the radar antenna will be reflected from any object in its path. The object returns a part of the wave and is received by the receiver, which is on the same line as the transmitter. This Arduino radar project aims to implement a radar system prototype based on the Arduino development board, capable of detecting stationary…

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