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How To Electronics

Editor's Pick

Color Detection ESP32 CAM
IoT Projects

Color Detection & Tracking with ESP32 CAM & OpenCV

Priyansh ShankhdharMay 29, 2023
History of PCB
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The History of Printed Circuit Board PCB 1880 – Present

Mamtaz AlamAugust 3, 2023
ESP32 CAM Object Detection OpenCV
IoT Projects

ESP32 CAM Object Detection & Identification with OpenCV

Mamtaz AlamAugust 23, 2023

Latest Posts

ESP32 Fingerprint Voting Machine with Live Web Dashboard

ESP32 Fingerprint Voting Machine with Live Web Dashboard

Mamtaz AlamUpdated:July 12, 202613 Mins Read
ESP32 Fingerprint Attendance System with Live Web Dashboard

ESP32 Fingerprint Attendance System with Live Web Dashboard

Mamtaz AlamUpdated:July 6, 202612 Mins Read1K
IoT Based PM & Air Quality Monitoring System using ESP32

IoT Based PM & Air Quality Monitoring System using ESP32

June 14, 2026
DIY ESP32 MLX90640 IR Thermal Camera with Live Web Display

DIY ESP32 MLX90640 IR Thermal Camera with Live Web Display

May 10, 2026
IoT Activity Tracker with ESP32 & Accelerometer Gyroscope

IoT Activity Tracker with ESP32 & Accelerometer/Gyroscope

May 2, 2026
A Guide to Sourcing Obsolete ICs for Vintage Projects

Beyond AliExpress: A Guide to Sourcing Obsolete ICs for Vintage Projects

April 21, 2026

ESP32 IoT Vehicle Motion Analyzer with MPU6050 & LIS3MDL

April 27, 2026
Building a Smart Sensor Node with a BLE Microcontroller

Building a Smart Sensor Node with a BLE Microcontroller

February 26, 2026

Arduino Projects & Tutorials

TM1637 Arduino

How to use TM1637 4-digit 7-segment LED display with Arduino

Mamtaz AlamUpdated:September 27, 202227 Mins Read11K

Overview In this tutorial, we will learn how to use the TM1637 4-digit 7-segment LED…

Rust Arduino

How to Run Rust on Arduino UNO

May 20, 2023
Password Based Door Lock Security System Using Arduino & Keypad

Password Based Door Lock Security System Using Arduino & Keypad

February 2, 2025
Digital Tachometer using IR Sensor with Arduino

Digital Tachometer using IR Sensor with Arduino for measuring RPM

February 2, 2025
Interfacing ADXL375 Accelerometer with Arduino

Interfacing ADXL375 Accelerometer with Arduino (±200g)

June 28, 2025

IoT Projects & Tutorials

ESP32 UWB Indoor Location Positioning ESP32 Projects

ESP32 DW1000 UWB Indoor Location Positioning System

Mamtaz AlamUpdated:January 4, 202489 Mins Read14K
SIM7600 HTTP Post Arduino Arduino Projects

HTTP Post with SIM7600 & Arduino | Send Data to Server

Mamtaz AlamUpdated:August 20, 202245 Mins Read13K
IoT Based Visitor Counter IoT Projects

IoT Bidirectional Visitor Counter using ESPP8266 & MQTT

Mamtaz AlamUpdated:May 29, 202368 Mins Read5K
How to Flash or Upgrade Firmware on ESP8266 (ESP-01) ESP8266 Projects

How to Flash or Upgrade Firmware on ESP8266 (ESP-01)

Mamtaz AlamUpdated:February 2, 20254 Mins Read14K

Learn Electronics

Switched-Mode Power Supply SMPS

Switched Mode Power Supply: SMPS Design & Applications

May 20, 2023
Dc-to-DC Step Down Buck Converter

Buck Converter: Basics, Working, Design & Application

August 4, 2023
Half Wave Rectifier

Half Wave Rectifier Basics, Circuit, Working & Applications

August 4, 2023
DC-to-AC Converters (Inverters)

DC-to-AC Converters (Inverters): Design, Working & Applications

May 20, 2023

Product Reviews

RYS8830 GPS GNSS Articles

Reyax RYS8830 GPS/GNSS Receiver Module Complete Guide

Mamtaz AlamUpdated:May 20, 202336 Mins Read2K

Overview In this post, we will learn how to use Reyax RYS8830 GPS/GNSS Receiver Module…

Raspberry Pi Embedded System Development Kit for Beginners

Raspberry Pi Embedded System Development Kit for Beginners

August 18, 2023
The Best 60W Electric Soldering Iron Station

The Best 60W Electric Soldering Iron Station – Test & Review

June 28, 2025
MyArm 300 PI 2023 - Portable 7-Axis Robotic Arm Review

MyArm 300 Pi Unboxing & Usage – Portable 7-Axis Robotic Arm

February 2, 2025
Mars Rover Robot Replica using ESP32 CAM & Arduino

Mars Rover Robot Replica using ESP32 CAM & Arduino

February 2, 2025
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Don't Miss

Caller ID Display Bikers Bluetooth

Wireless Caller ID Display for Bikers using Bluetooth & Arduino

RGB LED Strip Bluetooth Arduino

RGB LED Strip Color Control with Bluetooth & Arduino

Home Automation with NodeMCU & Alexa

Voice Based Home Automation with NodeMCU & Alexa using fauxmoESP

esp8266 nrf24l01

ESP8266 NRF24L01 Wifi Gateway with Arduino NRF24L01 Node

AC to DC Converters

AC to DC Converters: Features, Design & Applications

Home Automation using Amazon AWS IoT Core & ESP32

Home Automation using Amazon AWS IoT Core & ESP32

Trending Posts
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    Buck Converter: Basics, Working, Design & Application
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    Designing of MPPT Solar Charge Controller using Arduino
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    IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
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    How to use ADS1115 16-Bit ADC Module with Arduino
  • How to use INA226 DC Current Sensor with Arduino
    How to use INA226 DC Current Sensor with Arduino
  • How to use Modbus RTU with ESP32 to read Sensor Data
    How to use Modbus RTU with ESP32 to read Sensor Data
  • ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
    ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
  • ESP32 Fingerprint Voting Machine with Live Web Dashboard
    ESP32 Fingerprint Voting Machine with Live Web Dashboard
  • LD2410 Sensor with ESP32 - Human Presence Detection
    LD2410 Sensor with ESP32 - Human Presence Detection

Raspberry Pi Projects

ADS1115 16-Bit ADC Module with Raspberry Pi
Raspberry Pi Projects

How to use ADS1115 16-Bit ADC Module with Raspberry Pi

Mamtaz AlamNovember 28, 2024
Shape Based Object Tracking with OpenCV on Raspberry Pi
Raspberry Pi Projects

Shape Based Object Tracking with OpenCV on Raspberry Pi

Mamtaz AlamAugust 28, 2023

Raspberry Pi Pico Projects

Colorful Flowing Lights using Raspberry Pi Pico Raspberry Pi Pico Projects

Colorful Flowing Lights using Raspberry Pi Pico

Laser Light Security System with Raspberry Pi Pico Raspberry Pi

Laser Light Security System with Raspberry Pi Pico & LDR

LM35 Temperature Sensor with Raspberry Pi Pico MicroPython Raspberry Pi Pico Projects

LM35 Temperature Sensor with Raspberry Pi Pico MicroPython

Raspberry Pi Pico W Projects

BME280 Raspberry Pi Pico W Web Server Weather Station Raspberry Pi Pico W Projects

BME280 & Raspberry Pi Pico W Web Server Weather Station

Building a Raspberry Pi Pico W & LM35 Web Server Raspberry Pi Pico W Projects

Building a Raspberry Pi Pico W & LM35 Web Server

IoT RGB LED Strip Control with Raspberry Pi Pico W & Adafruit IO Raspberry Pi Pico W Projects

IoT RGB LED Strip Control with Raspberry Pi Pico W & Adafruit IO

Power Electronics

Electronics Circuits

12V DC to 220V AC Inverter Circuit & PCB

Mamtaz AlamUpdated:February 2, 2025144 Mins Read62K
Designing of MPPT Solar Charge Controller using Arduino

Designing of MPPT Solar Charge Controller using Arduino

January 24, 2025
0-35V Variable Power Supply Using XL4015 DC-DC Converter

0-35V Variable Power Supply Using XL4015 DC-DC Converter

October 2, 2022
Lithium Ion Battery Charger Circuit

Lithium-Ion Battery Charger Circuit using MCP73831

September 12, 2023

555 Timer Projects

Project for Girlfriend - Heart Shaped Serial LED Flasher Circuit using 555 Timer 555 Timer Projects

Heart Shaped LED Flasher Circuit using 555 Timer

Mamtaz AlamUpdated:June 25, 20232 Mins Read2K

Overview In this project, we will learn how to make Heart Shaped Serial LED Flasher…

Fire Alarm 555 Circuit

Fire Alarm Circuit Using IC 555 Timer & Thermistor

October 2, 2022
Dark/Light Detector using 555 Timer

Dark/Light Detector using 555 Timer & LDR – Electronics Mini Project

February 2, 2025
DIY LED Chaser Circuit using 555 Timer IC & CD4017

LED Chaser Circuit using 555 Timer IC & CD4017

May 28, 2023
Dark Activated Automatic Evening Lamp LDR 555

Dark Activated 220V Automatic Evening Lamp using LDR & IC 555

October 2, 2022

LoRa/LoRaWAN Projects

ESP32 Lora SX1278 ESP32 Projects

ESP32 & LoRa SX1278/76 Transmitter Receiver with OLED

Mamtaz AlamUpdated:May 26, 202336 Mins Read37K

In this tutorial, we will make Lora Transmitter & Receiver using Lora Module SX1278 & ESP32 Wifi Module. The communication type is a point to…

Setting up LPS8N LoRaWAN Gateway with The Things Network LoRa/LoRaWAN Projects

Setting up LPS8N LoRaWAN Gateway with The Things Network

Mamtaz AlamUpdated:March 2, 20239 Mins Read2K

Overview This article provides a guide on how to set up the Dragino LPS8N open-source LoRaWAN Indoor Gateway with The Things Network Server (TTN Server).…

SX1272 Based LoRa USB Dongle Gateway 868/915MHz LoRa/LoRaWAN Projects

SX1272 Based LoRa USB Dongle Gateway 868/915MHz

Mamtaz AlamUpdated:October 19, 20225 Mins Read2K

Overview In this guide, we will learn about the SX1272 Based LoRa USB Dongle Gateway. The LoRa USB Dongle is a low-cost RF front-end transceiver…

Latest Posts

High-Accuracy Pitch, Roll, Yaw with ESP32 & BNO08x IMU ESP32 Projects

High-Accuracy Pitch, Roll, Yaw with ESP32 & BNO08x IMU

Mamtaz AlamUpdated:April 27, 20268 Mins Read2K
DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32

DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32

February 1, 2026
Flight Black-Box Motion Recorder using ESP32 & BMI160

Flight Black-Box Motion Recorder System using ESP32 & BMI160

December 7, 2025
Humidity & Temperature Monitoring using DHT11 & NodeMCU on ThingSpeak

ESP8266 & DHT11 Humidity Temperature Monitor on ThingSpeak

October 19, 2025
IoT based Battery SoC (%) Monitoring System with ESP32

IoT based Battery SoC (%) Monitoring System with ESP32

September 28, 2025

Speed-Run Translations: Making Fast-Moving Meme Videos Accessible Worldwide

September 22, 2025
DIY ESP32 Board for Battery Powered IoT Applications

DIY ESP32 Board for Battery Powered IoT Applications

September 28, 2025
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