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How To Electronics

Editor's Pick

Power Supply for ESP32 Board
ESP32 Projects

Power Supply for ESP32 with Battery Charger & Boost Converter

Mamtaz AlamSeptember 12, 2023
Switched-Mode Power Supply SMPS
Articles

Switched Mode Power Supply: SMPS Design & Applications

Daman ShahMay 20, 2023
ESP32 LoRa Thingspeak Gateway Sensor Node
IoT Projects

ESP32 LoRa Thingspeak Gateway with LoRa Sensor Node

Mamtaz AlamAugust 21, 2022

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

74HC595 Shift Register with Arduino

Shift Register 74HC595 with Arduino – Examples & Code

Mamtaz AlamUpdated:February 2, 202519 Mins Read6K

Overview In this project, we will be interfacing 74HC595 Shift Register with Arduino. We will…

Arduino Based Calculator using Keypad & LCD

Arduino Based Calculator using Keypad & LCD for Calculation

August 22, 2022
A9G GPRS GPS Internet

Internet with A9G Low Power GPRS+GPS Module & Arduino

August 21, 2022
RS-485 Simplex Communication with Arduino & MAX485

RS-485 Simplex Communication with Arduino & MAX485

February 2, 2025
Interface Capacitive Soil Moisture Sensor with Arduino

Interface Capacitive Soil Moisture Sensor v1.2 with Arduino

November 19, 2022

IoT Projects & Tutorials

STM32 SIM900 GPRS IoT Projects

Send SIM800/900 GSM/GPRS Data to Thingspeak with STM32

Mamtaz AlamUpdated:August 21, 202215 Mins Read5K
Interfacing 5MP SPI Camera with NodeMCU ESP8266 ESP8266 Projects

Interfacing 5MP SPI Camera with NodeMCU ESP8266

Mamtaz AlamUpdated:May 28, 202325 Mins Read9K
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
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

Linear Voltage Regulator

Linear Voltage Regulator – Circuit, Types & Applications

May 20, 2023
DC-to-DC Converters

DC-to-DC Converters: Design, Working & Applications

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

Buck Converter: Basics, Working, Design & Application

August 4, 2023
Silicon Controlled Rectifier (SCR) Construction & Working

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

December 2, 2024

Product Reviews

The Best 60W Electric Soldering Iron Station Product Review

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

Mamtaz AlamUpdated:June 28, 20256 Mins Read

Introduction This post explains about the Best 60W Electric Soldering Iron Station from Kaiweets. The…

RYS8830 GPS GNSS

Reyax RYS8830 GPS/GNSS Receiver Module Complete Guide

May 20, 2023
2.4GHz Spectrum Analyzer

How to use 2.4GHz Portable Spectrum Analyzer USB Dongle

February 1, 2026
Mars Rover Robot Replica using ESP32 CAM & Arduino

Mars Rover Robot Replica using ESP32 CAM & Arduino

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

Lucid ONE: AI Planning 7-DOF Robotic Arm Review

May 21, 2023
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Don't Miss

Getting Started with Arduino UNO R4 Minima Board

Arduino UNO R4 Minima Board Overview & Getting Started Guide

Caller ID Display Bikers Bluetooth

Wireless Caller ID Display for Bikers using Bluetooth & Arduino

Gesture Controlled Robot Accelerometer

Wireless Gesture Controlled Robot Using Accelerometer & Arduino

Interfacing 5MP SPI Camera with ESP32 WiFi Module

IoT Controlled Relay using Raspberry Pi Pico W WiFi

IoT Controlled Relay using Raspberry Pi Pico W WiFi

ESP32 CAM Getting Started & Video Streaming

Getting Started with ESP32 CAM Board & Video Streaming Over WiFi

Trending Posts
  • 12V DC to 220V AC Inverter Circuit & PCB
    12V DC to 220V AC Inverter Circuit & PCB
  • IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
    IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
  • IoT Based Drinking Water Quality Monitoring with ESP32
    IoT Based Drinking Water Quality Monitoring with ESP32
  • LD2410 Sensor with ESP32 - Human Presence Detection
    LD2410 Sensor with ESP32 - Human Presence Detection
  • ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
    ESP32 CAN Bus Tutorial | Interfacing MCP2515 CAN Module with ESP32
  • DIY IoT Water pH Meter using pH Sensor & ESP32
    DIY IoT Water pH Meter using pH Sensor & ESP32
  • 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
  • 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

Raspberry Pi Projects

Obstacle Avoidance Robot using Raspberry Pi
Raspberry Pi Projects

Obstacle Avoidance Robot using Raspberry Pi 4 & HC-SR04

Mamtaz AlamOctober 30, 2022
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

ADS1115 Raspberry Pi Pico Raspberry Pi Pico Projects

ADS1115 16-Bit ADC Module with Raspberry Pi Pico

Interfacing ADXL345 Accelerometer with Raspberry Pi Pico Raspberry Pi Pico Projects

Interfacing ADXL345 Accelerometer with Raspberry Pi Pico

ADC Example Raspberry Pi Pico Raspberry Pi

How to use ADC in Raspberry Pi Pico | ADC Example Code

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

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

Building a Raspberry Pi Pico W & LM35 Web Server

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

Voltage Doubler Simulation Electronics Circuits

12V to 24V Voltage Doubler Circuit

Mamtaz AlamUpdated:April 28, 202332 Mins Read4K
Lithium Ion Battery Charger Circuit

Lithium-Ion Battery Charger Circuit using MCP73831

September 12, 2023
DC-DC Converter using 555 Timer IC

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

October 2, 2022
Power Supply for ESP32 Board

Power Supply for ESP32 with Battery Charger & Boost Converter

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…

Brushless DC Motor Driver Circuit

(BLDC) Brushless DC Motor Driver Circuit using 555 IC

August 10, 2023
Water Level Alert using Float Sensor & 555 Timer

Water Level Alert using Float Sensor & 555 Timer

February 15, 2025
Flashing Police Light LED Effect using 555 Timer

Flashing Police Light LED Effect using 555 Timer

June 25, 2023
Adjustable Auto On Off Delay Timer Circuit Using 555 IC

555 Based Adjustable Auto On Off Delay Timer Circuit

February 14, 2025

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 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…

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…

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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