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How To Electronics

Editor's Pick

Panasonic PIR Sensor Arduino
Arduino Projects

How to interface Panasonic PIR Motion Sensor with Arduino

Mamtaz AlamDecember 23, 2023
Traffic Light Controller Raspberry Pi Pico
Raspberry Pi Pico Projects

Traffic Light Controller with Raspberry Pi Pico & MicroPython

Mamtaz AlamOctober 30, 2023
Arduino Projects

Digital Thermometer with Arduino & LM35 Temperature Sensor

Mamtaz AlamFebruary 2, 2025

Latest Posts

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

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

Interfacing Waterproof Ultrasonic Sensor JSN-SR04T AJ-SR04M with Arduino

JSN-SR04T Waterproof Ultrasonic Sensor with Arduino Guide

Mamtaz AlamUpdated:December 14, 20239 Mins Read27K

Overview This tutorial is about Interfacing of Waterproof Ultrasonic Sensor JSN-SR04T/AJ-SR04M with Arduino & SSD1306…

MCP4725 12-Bit Digital-to-Analog Converter with Arduino

How to use MCP4725 12-Bit DAC Module with Arduino

October 3, 2023
Gas Leak Detection & Alarm using MQ-2 Sensor & Arduino

Gas Leak Detection & Alarm using MQ2 Sensor & Arduino

February 2, 2025
Stopwatch 7 Segment Arduino

Stopwatch Using 4 Digit 7 Segment Display & Arduino

February 3, 2025
ABP LoRaWAN Node Arduino

ABP-based LoRaWAN Node with Arduino & LoRa SX1276

May 28, 2023

IoT Projects & Tutorials

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
IoT Projects

Sending Ra-07 LoRaWAN Node Data to The Things Network Server

Mamtaz AlamUpdated:August 20, 202227 Mins Read3K
Interfacing LM35 Temperature Sensor with ESP32 Web Server IoT Projects

Interfacing LM35 Temperature Sensor with ESP32 Web Server

Mamtaz AlamUpdated:February 2, 202537 Mins Read7K
Mars Rover Robot Replica using ESP32 CAM & Arduino Product Review

Mars Rover Robot Replica using ESP32 CAM & Arduino

Mamtaz AlamUpdated:February 2, 20255 Mins Read3K

Learn Electronics

Cycloconverters Design, Working, Types & Applications

Cycloconverters: Design, Working, Types & Applications

May 20, 2023
L298N Dual H-Bridge Motor Driver IC

L298 Dual H-Bridge Motor Driver IC Pins, Working, Applications

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

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

December 2, 2024
Dc-to-DC Step Down Buck Converter

Buck Converter: Basics, Working, Design & Application

August 4, 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…

Lucid ONE - AI Planning 7 DOF Robotic Arm from AmberRobotics

Lucid ONE: AI Planning 7-DOF Robotic Arm Review

May 21, 2023
Shenzhen Huaqiu Electronics

Shenzhen Huaqiu Electronics Approach for upgrading Electronics Industry

April 14, 2024
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
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Don't Miss

Fire Alarm 555 Circuit

Fire Alarm Circuit Using IC 555 Timer & Thermistor

SIM900 HTTP POST JSON

SIM900/800 HTTP Post Request in JSON Format with Arduino

Wireless Charging Technology

Wireless Charging Technology : The Fuel of Future

Raspberry Pi UPS Power Bank with Battery Monitoring on Blynk

Raspberry Pi UPS Power Bank with Battery Monitoring on Blynk

Ultrasonic Anemometer Arduino

Measure Wind Speed & Direction with Ultrasonic Anemometer & Arduino

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ESP8266 NRF24L01 Wifi Gateway with Arduino NRF24L01 Node

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Raspberry Pi Projects

Raspberry Pi OpenCV Install Setup
Raspberry Pi Projects

How to Install & Setup OpenCV on Raspberry Pi 4

Mamtaz AlamAugust 28, 2023
DIY Thermal Imaging Camera using AMG8833 Raspberry Pi
Raspberry Pi Projects

DIY Thermal Camera with Raspberry Pi & AMG8833 Thermal Image Sensor

Mamtaz AlamJune 28, 2025

Raspberry Pi Pico Projects

Control Stepper Motor with A4988 Driver & Raspberry Pi Pico Raspberry Pi Pico Projects

Control Stepper Motor with A4988 Driver & Raspberry Pi Pico

HMC5883L Raspberry Pi Pico MicroPython Raspberry Pi Pico Projects

Interfacing HMC5883L Magnetometer with Raspberry Pi Pico

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DC Motor/Fan Speed Controller with Raspberry Pi Pico

Raspberry Pi Pico W Projects

Pi Pico W Web Server MicroPython Raspberry Pi Pico W Projects

Raspberry Pi Pico W Web Server Tutorial with MicroPython

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Getting Started with Raspberry Pi Pico W using MicroPython

IoT Soil Moisture Monitor with Raspberry Pi Pico W & Blynk Raspberry Pi Pico W Projects

IoT Soil Moisture Monitor with Raspberry Pi Pico W & Blynk

Power Electronics

Designing of MPPT Solar Charge Controller using Arduino Arduino Projects

Designing of MPPT Solar Charge Controller using Arduino

Mamtaz AlamUpdated:January 24, 20253313 Mins Read58K
Transformerless Power Supply

Transformerless Power Supply – 220V AC to 9V DC

May 29, 2023
Lithium Ion Battery Charger Circuit

Lithium-Ion Battery Charger Circuit using MCP73831

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

Water Level Alert using Float Sensor & 555 Timer 555 Timer Projects

Water Level Alert using Float Sensor & 555 Timer

Mamtaz Alam3 Mins Read2K

Overview This article explores a water level alert circuit using a 555 timer and a float sensor,…

Negative Voltage Generator Circuit using 555 Timer IC

Negative Voltage Generator Circuit using 555 Timer IC

May 28, 2023
PWM Based DC Motor Speed Control using 555 Timer

PWM Based DC Motor Speed Control using 555 Timer

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Dark/Light Detector using 555 Timer

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

February 2, 2025

Voltage Doubler Circuit using 555 Timer IC

May 13, 2023

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…

STM32 LoRa SX1278 STM32 Projects

Interfacing LoRa SX1278 with STM32 – Sender & Receiver

Mamtaz AlamUpdated:May 29, 202386 Mins Read20K

Overview In this tutorial, we will learn Interfacing of LoRa Module SX1278 with STM32 Bluepill Microcontroller. The Ra-02 module uses SX1278 IC and works on…

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…

Latest Posts

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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