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How To Electronics

Editor's Pick

Atlas Scientific Ph Sensor Arduino
Arduino Projects

Interfacing Atlas Scientific Ph Sensor with Arduino via UART/I2C

Mamtaz AlamMay 29, 2023
Smoke Detector Arduino
Arduino Projects

Arduino Smoke Level Detector using MQ-135 Sensor with Alarm

Mamtaz AlamAugust 22, 2022
Create Bluetooth Low Energy Repeater
BLE Projects

How to make Simple Bluetooth Low Energy Repeater

Mamtaz AlamAugust 20, 2022

Latest Posts

ESP32 Fingerprint Attendance System with Live Web Dashboard

ESP32 Fingerprint Attendance System with Live Web Dashboard

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IoT Based PM & Air Quality Monitoring System using ESP32

IoT Based PM & Air Quality Monitoring System using ESP32

Mamtaz AlamUpdated:June 14, 202611 Mins Read1K
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
High-Accuracy Pitch, Roll, Yaw with ESP32 & BNO08x IMU

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

April 27, 2026

Arduino Projects & Tutorials

Getting Started with Arduino UNO R4 Minima Board

Arduino UNO R4 Minima Board Overview & Getting Started Guide

Mamtaz AlamUpdated:October 13, 202319 Mins Read4K

Introduction In this guide, we will learn the essential steps for geting started with the…

Control Multiple Servo Arduino

How to Control Multiple Servo Motors with Arduino

August 22, 2022
A9G GSM GPS Module

Getting Started with A9G Low Power GSM/GPRS+GPS Module with Arduino

August 11, 2023
Soil NPK Sensor Arduino

Measure Soil Nutrient using Arduino & Soil NPK Sensor

October 24, 2024
Blind Walking Stick Using Arduino & Ultrasonic Sensor HC-SR04

Blind Walking Stick Using Arduino & Ultrasonic Sensor HC-SR04

August 22, 2022

IoT Projects & Tutorials

Voice Controlled Home Automation Using NodeMCU IoT Projects

Wifi & Voice Controlled Home Automation Using NodeMCU & Android

Mamtaz AlamUpdated:August 3, 2023175 Mins Read9K
Motion Detection ESP32 CAM ESP32-CAM Projects

Motion Detection Squid Game using ESP32 CAM & OpenCV

Mamtaz AlamUpdated:May 29, 202318 Mins Read3K
GSM Arduino Weather Station IoT Projects

MQTT Based Wind Weather Station using GSM & Arduino

Mamtaz AlamUpdated:July 20, 202327 Mins Read2K
ESP32 with BMI160 Accelerometer & Gyroscope Sensor ESP32 Projects

ESP32 with BMI160 Accelerometer & Gyroscope Sensor

Mamtaz AlamUpdated:April 25, 20268 Mins Read9K

Learn Electronics

Silicon Controlled Rectifier (SCR) Construction & Working

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

December 2, 2024
555 Timer IC Working

555 Timer IC – Features, Pinout, Working, Circuit, Operating Modes

January 24, 2025
L293D Motor Driver IC

L293D Dual H-Bridge Motor Driver IC Pins, Circuit, Working

May 20, 2023
DC-to-AC Converters (Inverters)

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

May 20, 2023

Product Reviews

Shenzhen Huaqiu Electronics Articles

Shenzhen Huaqiu Electronics Approach for upgrading Electronics Industry

Mamtaz AlamUpdated:April 14, 20247 Mins Read

Q. Can you briefly introduce the Shenzhen Huaqiu Electronics Company? We, Huaqiu Electronics, are an…

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

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

February 2, 2025
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
Lucid ONE - AI Planning 7 DOF Robotic Arm from AmberRobotics

Lucid ONE: AI Planning 7-DOF Robotic Arm Review

May 21, 2023
The Best 60W Electric Soldering Iron Station

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

June 28, 2025
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Don't Miss

Call SMS GSM Arduino

Simple Phone: Call & SMS using GSM Module & Arduino

PiCar X AI Robot Raspberry Pi

PiCar-X Self Driving AI Robot with Raspberry Pi 4

ESP32 Lora SX1278

ESP32 & LoRa SX1278/76 Transmitter Receiver with OLED

Designing of MPPT Solar Charge Controller using Arduino

Designing of MPPT Solar Charge Controller using Arduino

RGB LED Rotary Encoder Arduino

RGB LED Color Control using Rotary Encoder and Arduino

Weather Station NodeMCU

IoT Live Weather Station Monitoring Using NodeMCU ESP8266

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    DIY Turbidity Meter using Turbidity Sensor & Arduino
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    ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
  • ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
    ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
  • ESP32 Fingerprint Attendance System with Live Web Dashboard
    ESP32 Fingerprint Attendance System with Live Web Dashboard
  • High-Accuracy Pitch, Roll, Yaw with ESP32 & BNO08x IMU
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    How to use INA219 DC Current Sensor Module with Arduino

Raspberry Pi Projects

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
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

Raspberry Pi Pico Projects

AD8495 K-Type Thermocouple Amplifier Raspberry Pi Pico Raspberry Pi Pico Projects

AD8495 K-Type Thermocouple Amplifier Raspberry Pi Pico

Pulse Width Modulation PWM Raspberry Pi Pico Raspberry Pi Pico Projects

Breathing LED: PWM Usage in Raspberry Pi Pico

MPU6050 Gyroscope Accelerometer Raspberry Pi Pico MicroPython Raspberry Pi Pico Projects

Interfacing MPU6050 with Raspberry Pi Pico & MicroPython

Raspberry Pi Pico W Projects

Getting Started with Raspberry Pi Pico W using MicroPython Raspberry Pi Pico W Projects

Getting Started with Raspberry Pi Pico W using MicroPython

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

IoT Controlled Relay using Raspberry Pi Pico W WiFi

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

BME280 & Raspberry Pi Pico W Web Server Weather Station

Power Electronics

Transformerless Power Supply Electronics Circuits

Transformerless Power Supply – 220V AC to 9V DC

Mamtaz AlamUpdated:May 29, 202374 Mins Read10K

12V DC to 220V AC Inverter Circuit & PCB

February 2, 2025
Power Supply for ESP32 Board

Power Supply for ESP32 with Battery Charger & Boost Converter

September 12, 2023
SG3525 PWM Inverter Circuit 12V to 220V, 300W, 5060 Hz

SG3525 PWM Inverter Circuit 12V to 220V, 300W, 50/60 Hz

May 28, 2023

555 Timer Projects

DIY LED Chaser Circuit using 555 Timer IC & CD4017 555 Timer Projects

LED Chaser Circuit using 555 Timer IC & CD4017

Mamtaz AlamUpdated:May 28, 202323 Mins Read13K

Overview In this article, we will make an LED Chaser Circuit using 555 Timer IC…

Laser Security System using 555 Timer IC & LDR

Laser Security System using 555 Timer IC & LDR

May 13, 2023
PWM Lamp Dimmer Circuit using IC 555 Timer

Simple PWM Lamp Dimmer Circuit using IC 555 Timer

August 10, 2023
Adjustable Auto On Off Delay Timer Circuit Using 555 IC

555 Based Adjustable Auto On Off Delay Timer Circuit

February 14, 2025
Rainfall Detector Alarm using 555 Timer & Rain Sensor

Rainfall Detector Alarm using 555 Timer & Rain Sensor

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LoRa/LoRaWAN Projects

LoRa Relay Switch IoT Projects

LoRa Relay Switch – Control Home Appliances using LoRa

Mamtaz AlamUpdated:August 21, 202235 Mins Read5K

Overview: Control Home Appliances using LoRa Relay Switch In this project, we will make a LoRa Relay Switch or LoRa Based Power Relay Control System…

Sending Sensor Data LoRa Arduino Arduino Projects

Sending Sensor Data Wirelessly with LoRa SX1278 & Arduino

Mamtaz AlamUpdated:September 16, 202265 Mins Read12K

In this tutorial, we will learn about Sending & Receiving Sensor Data Wirelessly with LoRa Ra-02 SX1278 Module & Arduino. We will use DHT11 Humidity…

ESP32 LoRa Web Server IoT Projects

ESP32 LoRa Sensor Data Monitoring on Web Server

Mamtaz AlamUpdated:November 27, 20237 Mins Read7K

In this project, we will make a sensor monitoring system on Web Server using an ESP32 board & LoRa Module SX1278 or SX1276. The device…

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DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32 ESP32 Projects

DIY Colorimeter using AS7265x Spectroscopy Sensor & ESP32

Mamtaz AlamUpdated:February 1, 202610 Mins Read1K
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
Build IoT DC Energy Meter with ESP32 Web Dashboard

Build IoT DC Energy Meter with ESP32 Web Dashboard

September 5, 2025
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