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How To Electronics

Editor's Pick

DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32
ESP32 Projects

DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32

Mamtaz AlamFebruary 1, 2026
3.7V to 9V Boost Converter
Electronics Circuits

DIY 3.7V to 9V Boost Converter Circuit using MC34063

Mamtaz AlamMay 29, 2023
Fan Speed Measurement using IR Sensor & Arduino
Arduino Projects

Fan Speed Measurement using IR Sensor & Arduino

Mamtaz AlamNovember 27, 2023

Latest Posts

IoT Based PM & Air Quality Monitoring System using ESP32

IoT Based PM & Air Quality Monitoring System using ESP32

Mamtaz Alam11 Mins Read
DIY ESP32 MLX90640 IR Thermal Camera with Live Web Display

DIY ESP32 MLX90640 IR Thermal Camera with Live Web Display

Mamtaz AlamUpdated:May 10, 202611 Mins Read1K
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
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

Arduino Projects & Tutorials

DC Energy Meter using Arduino

Build a DC Energy Meter using Arduino – 32V/5A

Mamtaz AlamUpdated:August 26, 20258 Mins Read2K

Overview In this project, we will build a DC Energy Meter using Arduino that can…

Grass Cutting Robot Arduino or Lawn mower

Make an Automatic Grass Cutting Robot using Arduino

October 7, 2023
DC Voltmeter using Arduino and Seven Segment Display. This time we will be interfacing Arduino with 7 segment display and MA7219 IC to measure voltage ranging from 0-50V with almost no error at all. This DC voltmeter is linear with voltage and shows a linear characteristics from 0.01 Volt to 50 Volt.

0-50V DC Voltmeter using Arduino & Seven Segement Display

August 22, 2022
Tilt Angle & Distance Meter

Arduino Tilt Angle & Distance Meter with ADXL335 & HC-SR04

September 16, 2022
Automated Toll Collection System using RFID & Arduino

Automated Toll Collection System using RFID & Arduino

October 9, 2023

IoT Projects & Tutorials

Gas Leakage Detector Email Alert Notification ESP32 IoT Projects

Gas Leakage Detector with Email Alert Notification using ESP32

Mamtaz AlamUpdated:November 27, 202315 Mins Read9K
Facial Recognition Based Attendance System ESP32-CAM Projects

Face Recognition Based Attendance System using ESP32 CAM

Priyansh ShankhdharUpdated:May 29, 2023158 Mins Read43K
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
IoT Based TDS Meter using ESP8266 IoT Projects

IoT Based TDS Meter using ESP8266 for Water Quality Monitoring

Mamtaz AlamUpdated:May 29, 202344 Mins Read9K

Learn Electronics

Silicon Controlled Rectifier (SCR) Construction & Working

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

December 2, 2024
Switched-Mode Power Supply SMPS

Switched Mode Power Supply: SMPS Design & Applications

May 20, 2023
LM358 Dual Op Amp IC

LM358 Dual Op-Amp Features, Pins, Working & Applications

November 11, 2024
Types of Diode : Overview, Symbol, Working & Applications

Types of Diode : Overview, Symbol, Working & Applications

May 20, 2023

Product Reviews

Lucid ONE - AI Planning 7 DOF Robotic Arm from AmberRobotics Product Review

Lucid ONE: AI Planning 7-DOF Robotic Arm Review

Mamtaz AlamUpdated:May 21, 20234 Mins Read

Overview Amber Robotics is at the forefront of a new era in intuitive control and…

Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

July 9, 2023
2.4GHz Spectrum Analyzer

How to use 2.4GHz Portable Spectrum Analyzer USB Dongle

February 1, 2026
Best 7 inch Raspberry Pi Touch Screen Display - SunFounder TS-7 Pro

Best 7 inch Raspberry Pi Touch Screen Display – SunFounder TS-7 Pro

August 1, 2023
Rust Arduino

How to Run Rust on Arduino UNO

May 20, 2023
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Don't Miss

Interfacing ADXL375 Accelerometer with Arduino

Interfacing ADXL375 Accelerometer with Arduino (±200g)

RYLR890 Arduino

How to use Reyax RYLR890 LoRa Module with Arduino

ABP LoRaWAN Node Arduino

ABP-based LoRaWAN Node with Arduino & LoRa SX1276

Alcohol Level Meter using Arduino & MQ-135 Alcohol/Gas Sensor

Alcohol Level Meter using Arduino & MQ-135 Alcohol/Gas Sensor

DC-to-AC Converters (Inverters)

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

GSM Arduino Weather Station

MQTT Based Wind Weather Station using GSM & Arduino

Trending Posts
  • 12V DC to 220V AC Inverter Circuit & PCB
    12V DC to 220V AC Inverter Circuit & PCB
  • How to use INA219 DC Current Sensor Module with Arduino
    How to use INA219 DC Current Sensor Module with Arduino
  • ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
    ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
  • IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
    IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
  • Designing of MPPT Solar Charge Controller using Arduino
    Designing of MPPT Solar Charge Controller using Arduino
  • 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
  • How to use Modbus RTU with ESP32 to read Sensor Data
    How to use Modbus RTU with ESP32 to read Sensor Data
  • LD2410 Sensor with ESP32 - Human Presence Detection
    LD2410 Sensor with ESP32 - Human Presence Detection
  • JSN-SR04T Waterproof Ultrasonic Sensor with Arduino Guide
    JSN-SR04T Waterproof Ultrasonic Sensor with Arduino Guide

Raspberry Pi Projects

Build a DIY Customized Mini PC using Raspberry Pi 4
Raspberry Pi Projects

Build a DIY Customized Mini PC using Raspberry Pi 4

Mamtaz AlamJanuary 8, 2024
App Controlled Robot using Raspberry Pi
Raspberry Pi Projects

App Controlled Robot using Raspberry Pi with AI Features

Mamtaz AlamNovember 1, 2022

Raspberry Pi Pico Projects

Shift Register 74HC595 with Raspberry Pi Pico & MicroPython Raspberry Pi Pico Projects

Shift Register 74HC595 with Raspberry Pi Pico & MicroPython

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

Control Stepper Motor with DRV8825 Driver & Raspberry Pi Pico

OLED Display Raspberry Pi Pico Raspberry Pi

Interfacing SSD1306 OLED Display with Raspberry Pi Pico

Raspberry Pi Pico W Projects

Home Automation using Raspberry Pi Pico W & Blynk 2.0 Raspberry Pi Pico W Projects

Home Automation using Raspberry Pi Pico W & Blynk 2.0

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

Raspberry Pi Pico W thingspeak DHT11 Raspberry Pi Pico W Projects

Send Sensor Data to Thingspeak with Raspberry Pi Pico W

Power Electronics

Transformerless Power Supply Electronics Circuits

Transformerless Power Supply – 220V AC to 9V DC

Mamtaz AlamUpdated:May 29, 202374 Mins Read9K

12V DC to 220V AC Inverter Circuit & PCB

February 2, 2025
Boost Converter 3.7V to 5V

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

October 2, 2022
3.7V to 9V Boost Converter

DIY 3.7V to 9V Boost Converter Circuit using MC34063

May 29, 2023

555 Timer Projects

Brushless DC Motor Driver Circuit Electronics Circuits

(BLDC) Brushless DC Motor Driver Circuit using 555 IC

Mamtaz AlamUpdated:August 10, 202313 Mins Read12K

Overview: Brushless DC Motor Driver Circuit using 555 IC In this project we will make…

Negative Voltage Generator Circuit using 555 Timer IC

Negative Voltage Generator Circuit using 555 Timer IC

May 28, 2023
Adjustable Auto On Off Delay Timer Circuit Using 555 IC

555 Based Adjustable Auto On Off Delay Timer Circuit

February 14, 2025
Flashing Police Light LED Effect using 555 Timer

Flashing Police Light LED Effect using 555 Timer

June 25, 2023
Project for Girlfriend - Heart Shaped Serial LED Flasher Circuit using 555 Timer

Heart Shaped LED Flasher Circuit using 555 Timer

June 25, 2023

LoRa/LoRaWAN Projects

Interfacing SX1278 LORA Arduino Arduino Projects

Interfacing SX1278 (Ra-02) LORA Module with Arduino

Mamtaz AlamUpdated:August 22, 2022237 Mins Read62K

In this tutorial, we will learn about Interfacing SX1278 (Ra-02) LORA Module with Arduino. We will see SX1278 LORA & Arduino example and make a…

LoRa SX1278 ESP8266 ESP8266 Projects

ESP8266 & LoRa SX1278 Transmitter Receiver with DHT11

Mamtaz AlamUpdated:May 26, 2023205 Mins Read30K

In this tutorial, we will make Lora Transmitter & Receiver using Lora Module SX1278 & NodeMCU ESP8266 Wifi Module. The communication type is a point…

LoRa Based Low Power GPS Tracker with Arduino & ESP8266 LoRa/LoRaWAN Projects

LoRa Based Low Power GPS Tracker with Arduino & ESP8266

Mamtaz AlamUpdated:November 11, 2024214 Mins Read16K

Overview In this project, we will build a LoRa Based Low Power GPS Tracker using Arduino & ESP8266. This is a special kind of GPS…

Latest Posts

Flight Black-Box Motion Recorder using ESP32 & BMI160 ESP32 Projects

Flight Black-Box Motion Recorder System using ESP32 & BMI160

Mamtaz AlamUpdated:December 7, 202510 Mins Read2K
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
Build IoT DC Energy Meter with ESP32 Web Dashboard

Build IoT DC Energy Meter with ESP32 Web Dashboard

September 5, 2025

The Future of Video Production: Adding Emotion with AI Voice Generators

August 26, 2025
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