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How To Electronics

Editor's Pick

Arduino QR Code Barcode Scanner
Arduino Projects

Barcode + QR Code Reader using Arduino & QR Scanner Module

Mamtaz AlamMay 29, 2023
Raspberry Pi UPS Power Bank with Battery Monitoring on Blynk
Raspberry Pi Projects

Raspberry Pi UPS Power Bank with Battery Monitoring on Blynk

Mamtaz AlamJanuary 24, 2025
Home Automation Google Firebase
IoT Projects

Home Automation using Google Firebase & NodeMCU ESP8266

Mamtaz AlamMay 29, 2023

Latest Posts

ESP32 Patient Health Monitor (ECG, SpO₂, BPM) & Live Dashboard

ESP32 Patient Health Monitor (ECG, SpO₂, BPM) & Live Dashboard

Mamtaz Alam13 Mins Read
Buck Converter vs Boost Converter

Buck Converter vs Boost Converter: Working, Differences & Applications

Mamtaz Alam12 Mins Read
ESP32 Fingerprint Voting Machine with Live Web Dashboard

ESP32 Fingerprint Voting Machine with Live Web Dashboard

July 12, 2026
ESP32 Fingerprint Attendance System with Live Web Dashboard

ESP32 Fingerprint Attendance System with Live Web Dashboard

July 6, 2026
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

Arduino Projects & Tutorials

PN532 NFC Arduino Interfacing

Interfacing PN532 NFC RFID Module with Arduino

Mamtaz AlamUpdated:May 29, 202319 Mins Read68K

Overview In this tutorial, we will be interfacing PN532 NFC RFID Module with Arduino Board…

Interfacing BMI160 Accelerometer & Gyroscope with Arduino

Interfacing BMI160 Accelerometer & Gyroscope with Arduino

February 2, 2025
IoT LoRa Based Smart Agriculture

IoT LoRa Based Smart Agriculture & Remote Monitoring System

March 8, 2023
Arduino PN532 NFC

Arduino+PN532 NFC Based Payment, Entrance & Security System

August 20, 2022
Caller ID Display Bikers Bluetooth

Wireless Caller ID Display for Bikers using Bluetooth & Arduino

September 16, 2022

IoT Projects & Tutorials

Industrial Automation AWS IoT Core ESP8266 IoT Projects

Industrial Automation with Amazon AWS IoT Core & ESP8266

Mamtaz AlamUpdated:October 20, 202312 Mins Read3K
CCS811 ESP8266 ESP32 IoT Projects

Monitor CCS811 CO2 & TVOC on ESP8266/ESP32 Webserver

Mamtaz AlamUpdated:August 21, 202214 Mins Read7K
OTAA LoRaWAN Node SX1276 Arduino LoRa/LoRaWAN Projects

OTAA-based LoRaWAN Node with Arduino & LoRa SX1276

Mamtaz AlamUpdated:May 28, 202327 Mins Read13K
ESP32 Stopwatch Timer ESP32 Projects

Stopwatch using ESP32 & LCD with Start, Stop & Reset Button

Mamtaz AlamUpdated:March 23, 20254 Mins Read2K

Learn Electronics

Op Amp IC 741 Basics, Characteristics, Pins & Applications

Op Amp IC 741 Basics, Characteristics, Pins, Applications

November 28, 2024
DC-to-AC Converters (Inverters)

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

May 20, 2023
Silicon Controlled Rectifier (SCR) Construction & Working

Silicon Controlled Rectifier (SCR): Construction, Working & Applications

December 2, 2024
Cycloconverters Design, Working, Types & Applications

Cycloconverters: Design, Working, Types & Applications

May 20, 2023

Product Reviews

MyArm 300 PI 2023 - Portable 7-Axis Robotic Arm Review Product Review

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

Mamtaz AlamUpdated:February 2, 202510 Mins Read

Overview In today’s fast-paced world of robotics, the MyArm 300 PI 2023 really shines as…

Mars Rover Robot Replica using ESP32 CAM & Arduino

Mars Rover Robot Replica using ESP32 CAM & Arduino

February 2, 2025
The Best 60W Electric Soldering Iron Station

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

June 28, 2025
Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

July 9, 2023
DWIN HMI TFT LCD Display

Getting started with DWIN HMI TFT LCD Display

February 27, 2024
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Don't Miss

Interfacing ADXL345 Accelerometer with Raspberry Pi Pico

Interfacing ADXL345 Accelerometer with Raspberry Pi Pico

Why DIY IoT Prototype Fails at Scale Hidden Component‑Sourcing Trap

Why DIY IoT Prototype Fails at Scale: Hidden Component‑Sourcing Trap

Designing of MPPT Solar Charge Controller using Arduino

Designing of MPPT Solar Charge Controller using Arduino

INA219 Current Sensor Module with Arduino

How to use INA219 DC Current Sensor Module with Arduino

Joystick Raspberry Pi Pico

Control Servo with Joystick & Raspberry Pi Pico

Control LED on Inernet using Arduino & ENC28J60

Control LED on Inernet using Arduino & ENC28J60 Ethernet Module

Trending Posts
  • How to use INA226 DC Current Sensor with Arduino
    How to use INA226 DC Current Sensor with Arduino
  • Buck Converter: Basics, Working, Design & Application
    Buck Converter: Basics, Working, Design & Application
  • IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
    IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
  • 12V DC to 220V AC Inverter Circuit & PCB
    12V DC to 220V AC Inverter Circuit & PCB
  • Silicon Controlled Rectifier (SCR): Construction, Working & Applications
    Silicon Controlled Rectifier (SCR): Construction, Working & Applications
  • ESP32 Fingerprint Attendance System with Live Web Dashboard
    ESP32 Fingerprint Attendance System with Live Web Dashboard
  • Designing of MPPT Solar Charge Controller using Arduino
    Designing of MPPT Solar Charge Controller using Arduino
  • ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
    ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
  • Earthquake Detector Alarm with Accelerometer & Arduino
    Earthquake Detector Alarm with Accelerometer & Arduino
  • IoT Based ECG Monitoring with AD8232 ECG Sensor & ESP32
    IoT Based ECG Monitoring with AD8232 ECG Sensor & ESP32

Raspberry Pi Projects

Raspberry Pi Embedded System Development Kit for Beginners
Raspberry Pi Projects

Raspberry Pi Embedded System Development Kit for Beginners

Mamtaz AlamAugust 18, 2023
Raspberry Pi OpenCV Install Setup
Raspberry Pi Projects

How to Install & Setup OpenCV on Raspberry Pi 4

Mamtaz AlamAugust 28, 2023

Raspberry Pi Pico Projects

Reed Switch use Raspberry Pi Pico Raspberry Pi Pico Projects

How to use Reed Switch with Raspberry Pi Pico

Sound Sensor Raspberry Pi Pico Raspberry Pi

Voice Activated Light with Sound Sensor & Raspberry Pi Pico

Control Stepper Motor with DRV8825 Driver & Raspberry Pi Pico Raspberry Pi Pico Projects

Control Stepper Motor with DRV8825 Driver & Raspberry Pi Pico

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

Pi Pico W Web Server MicroPython Raspberry Pi Pico W Projects

Raspberry Pi Pico W Web Server Tutorial with MicroPython

IoT Controlled Relay using Raspberry Pi Pico W WiFi Raspberry Pi Pico W Projects

IoT Controlled Relay using Raspberry Pi Pico W WiFi

Power Electronics

Boost Converter 3.7V to 5V Electronics Circuits

DIY 3.7V to 5V Boost Converter for Lithium-Ion Battery

Mamtaz AlamUpdated:October 2, 20223 Mins Read11K
DC-DC Converter using 555 Timer IC

Simple DC-DC Converter using 555 Timer IC (7.5-35V)

October 2, 2022

12V DC to 220V AC Inverter Circuit & PCB

February 2, 2025
0-35V Variable Power Supply Using XL4015 DC-DC Converter

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

October 2, 2022

555 Timer Projects

Flashing Police Light LED Effect using 555 Timer 555 Timer Projects

Flashing Police Light LED Effect using 555 Timer

Mamtaz AlamUpdated:June 25, 20233 Mins Read3K

Overview In this project, we will build a Flashing Police Light using 555 Timer &…

Brushless DC Motor Driver Circuit

(BLDC) Brushless DC Motor Driver Circuit using 555 IC

August 10, 2023
Gas Leak Detection & Alarm using 555 Timer IC

Gas Leak Detection & Alarm using 555 Timer IC

February 2, 2025
PWM Based DC Motor Speed Control using 555 Timer

PWM Based DC Motor Speed Control using 555 Timer

August 10, 2023

Voltage Doubler Circuit using 555 Timer IC

May 13, 2023

LoRa/LoRaWAN Projects

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…

LoRa Weather Station Arduino Projects

LoRa Based Wireless Weather Station with Arduino & ESP32

Mamtaz AlamUpdated:August 3, 2023159 Mins Read14K

Overview: LoRa Based Wireless Weather Station In this project, we will learn how to make LoRa Based Wireless Weather Station using Arduino Pro Mini &…

LoRaWAN Temperature Humidity Soil Moisture Sensor Data on TTN & Thingspeak LoRa/LoRaWAN Projects

Smart Soil Moisture Monitoring with LoRaWAN on TTN Server

Mamtaz AlamUpdated:March 12, 202316 Mins Read3K

Overview In this article, we will discuss the Smart Temperature/Humidity/Soil Moisture Monitoring Device with LoRaWAN on TTN (The Things Network) Server. It is an innovative…

Latest Posts

ESP32 Projects

ESP32 IoT Vehicle Motion Analyzer with MPU6050 & LIS3MDL

Mamtaz AlamUpdated:April 27, 202612 Mins Read1K
Building a Smart Sensor Node with a BLE Microcontroller

Building a Smart Sensor Node with a BLE Microcontroller

February 26, 2026
High-Accuracy Pitch, Roll, Yaw with ESP32 & BNO08x IMU

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

April 27, 2026
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
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