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How To Electronics

Editor's Pick

Mobile Phone Detector Circuit
Electronics Circuits

Simple Mobile Phone Detector Circuit using Op-Amp

Mamtaz AlamMay 29, 2023
MAX30100 Pulse Oximeter Arduino
Arduino Projects

Blood Oxygen & Heart Rate Monitor with MAX30100 & Arduino

Mamtaz AlamFebruary 9, 2024
ESP32 DW3000 UWB Module Achieving 500m Range
ESP32 Projects

ESP32 DW3000 UWB Module Achieving 500m Range

Mamtaz AlamFebruary 2, 2025

Latest Posts

ESP32 Fingerprint Attendance System with Live Web Dashboard

ESP32 Fingerprint Attendance System with Live Web Dashboard

Mamtaz AlamUpdated:June 21, 202610 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

Flex Sensor Arduino Interfacing

Flex Sensor & Arduino Interfacing – Measure Bend/Resistance

Mamtaz AlamUpdated:May 27, 20233 Mins Read5K

Overview In this tutorial we will learn about flex sensor and its interfacing with Arduino.…

ADS1115 16-Bit ADC Module with Arduino

How to use ADS1115 16-Bit ADC Module with Arduino

November 28, 2024
A9G GPRS GPS Internet

Internet with A9G Low Power GPRS+GPS Module & Arduino

August 21, 2022

8×32 MAX7219 Dot Matrix LED Display with Arduino

October 9, 2022
A4988 Stepper Motor Arduino

How to Control Stepper Motor with A4988 Driver & Arduino

January 24, 2025

IoT Projects & Tutorials

Ultrasonic Range Finder ESP32 ESP32 Projects

Ultrasonic Range Finder with ESP32 TFT Display & HC-SR04

Mamtaz AlamUpdated:August 21, 202246 Mins Read2K
CCS811 ESP8266 ESP32 IoT Projects

Monitor CCS811 CO2 & TVOC on ESP8266/ESP32 Webserver

Mamtaz AlamUpdated:August 21, 202214 Mins Read7K
ESP32 Stopwatch Timer ESP32 Projects

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

Mamtaz AlamUpdated:March 23, 20254 Mins Read2K
MAX30100 ESP32 ESP32 Projects

Monitor SpO2/BPM with ESP32 & MAX30100 Pulse Oximeter on Blynk

Mamtaz AlamUpdated:August 21, 202266 Mins Read8K

Learn Electronics

LM358 Dual Op Amp IC

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

November 11, 2024
Full Wave Bridge Rectifier

Full Wave Rectifier Basics, Circuit, Working & Applications

August 4, 2023
DC-to-DC Converters

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

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

DC-to-AC Converters (Inverters): Design, 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…

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
Mars Rover Robot Replica using ESP32 CAM & Arduino

Mars Rover Robot Replica using ESP32 CAM & Arduino

February 2, 2025
Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

Getting Started with Nuvoton NuMaker UNO NUC131 Microcontroller

July 9, 2023
Shenzhen Huaqiu Electronics

Shenzhen Huaqiu Electronics Approach for upgrading Electronics Industry

April 14, 2024
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Don't Miss

DS18B20 OLED Arduino

Temperature Meter using DS18B20 OLED Display & Arduino

Raspberry Pi Embedded System Development Kit for Beginners

Raspberry Pi Embedded System Development Kit for Beginners

SIM7600 Arduino

Using SIM7600 4G GSM with Arduino | AT Commands, Call, SMS

Flight Black-Box Motion Recorder using ESP32 & BMI160

Flight Black-Box Motion Recorder System using ESP32 & BMI160

Pi Pico W Web Server MicroPython

Raspberry Pi Pico W Web Server Tutorial with MicroPython

Interface ENC28J60 Ethernet Module with Arduino

Interface ENC28J60 Ethernet Module with Arduino Webserver

Trending Posts
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    Buck Converter: Basics, Working, Design & Application
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    ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
  • 12V DC to 220V AC Inverter Circuit & PCB
    12V DC to 220V AC Inverter Circuit & PCB
  • 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
  • Earthquake Detector Alarm with Accelerometer & Arduino
    Earthquake Detector Alarm with Accelerometer & Arduino
  • Measure Wind Speed & Direction with Ultrasonic Anemometer & Arduino
    Measure Wind Speed & Direction with Ultrasonic Anemometer & Arduino
  • ESP32 Fingerprint Attendance System with Live Web Dashboard
    ESP32 Fingerprint Attendance System with Live Web Dashboard
  • TDS Sensor & Arduino Interfacing for Water Quality Monitoring
    TDS Sensor & Arduino Interfacing for Water Quality Monitoring
  • L293D Dual H-Bridge Motor Driver IC Pins, Circuit, Working
    L293D Dual H-Bridge Motor Driver IC Pins, Circuit, Working

Raspberry Pi Projects

Fever Detector with MLX90640 & OpenCV Raspberry Pi
Raspberry Pi Projects

Thermal Fever Detector with MLX90640 & OpenCV Raspberry Pi

Mamtaz AlamFebruary 2, 2025
Line Follower Tracking Robot using Raspberry Pi 4
Raspberry Pi Projects

Line Follower/Tracking Robot using Raspberry Pi 4

Mamtaz AlamOctober 30, 2022

Raspberry Pi Pico Projects

DHT11 Raspberry Pi Pico Raspberry Pi

Interfacing DHT11 Temperature Humidity Sensor with Raspberry Pi Pico

HC-SR04 Ultrasonic Distance Sensor with Raspberry Pi Pico Raspberry Pi Pico Projects

HC-SR04 Ultrasonic Distance Sensor with Raspberry Pi Pico

Interfacing XBee Module with Raspberry Pi Pico & MicroPython Raspberry Pi Pico Projects

Interfacing XBee Module with Raspberry Pi Pico & MicroPython

Raspberry Pi Pico W Projects

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

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

IoT Controlled Relay using Raspberry Pi Pico W WiFi

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

Power Electronics

Electronics Circuits

12V DC to 220V AC Inverter Circuit & PCB

Mamtaz AlamUpdated:February 2, 2025144 Mins Read61K
Power Supply for ESP32 Board

Power Supply for ESP32 with Battery Charger & Boost Converter

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

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

October 2, 2022
Boost Converter 3.7V to 5V

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

October 2, 2022

555 Timer Projects

PWM Lamp Dimmer Circuit using IC 555 Timer 555 Timer Projects

Simple PWM Lamp Dimmer Circuit using IC 555 Timer

Mamtaz AlamUpdated:August 10, 20232 Mins Read3K

Overview: Simple PWM Lamp Dimmer Circuit using IC 555 Timer In this project, we will…

Servo Motor Controller & Tester Circuit using 555 Timer IC

Servo Motor Controller & Tester Circuit using 555 Timer IC

October 8, 2023
DIY LED Chaser Circuit using 555 Timer IC & CD4017

LED Chaser Circuit using 555 Timer IC & CD4017

May 28, 2023
Water Level Alert using Float Sensor & 555 Timer

Water Level Alert using Float Sensor & 555 Timer

February 15, 2025
PWM Based DC Motor Speed Control using 555 Timer

PWM Based DC Motor Speed Control using 555 Timer

August 10, 2023

LoRa/LoRaWAN Projects

SX1276 STM32 LoRa/LoRaWAN Projects

Interfacing LoRa SX1276 with STM32 Microcontroller | LR1276-915MHz

Mamtaz AlamUpdated:May 29, 202317 Mins Read12K

Overview In this tutorial, we will learn Interfacing of LoRa Module SX1276 with STM32 Bluepill Microcontroller. The LR1276UA-A-915 module uses SX1276 IC and works on…

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…

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
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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