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How To Electronics

Editor's Pick

ESP32 Fingerprint Sensor Door Lock Security System
ESP32 Projects

ESP32 Fingerprint Sensor Based Door Lock Security System

Mamtaz AlamOctober 4, 2023
SD Card Module Arduino
Arduino Projects

Using SD Card Module with Arduino | Read/Write/Data Logger

Mamtaz AlamAugust 20, 2022
Smart Shopping Cart with Automatic Billing System using RFID & Arduino
Arduino Projects

Smart Shopping Cart with Automatic Billing System using RFID & Arduino

Mamtaz AlamOctober 9, 2023

Latest Posts

ESP32 Patient Health Monitor (ECG, SpO₂, BPM) & Live Dashboard

ESP32 Patient Health Monitor (ECG, SpO₂, BPM) & Live Dashboard

Mamtaz Alam13 Mins Read
Buck Converter vs Boost Converter

Buck Converter vs Boost Converter: Working, Differences & Applications

Mamtaz Alam12 Mins Read
ESP32 Fingerprint Voting Machine with Live Web Dashboard

ESP32 Fingerprint Voting Machine with Live Web Dashboard

July 12, 2026
ESP32 Fingerprint Attendance System with Live Web Dashboard

ESP32 Fingerprint Attendance System with Live Web Dashboard

July 6, 2026
IoT Based PM & Air Quality Monitoring System using ESP32

IoT Based PM & Air Quality Monitoring System using ESP32

June 14, 2026
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

Arduino Projects & Tutorials

Control Multiple Servo Arduino

How to Control Multiple Servo Motors with Arduino

Mamtaz AlamUpdated:August 22, 202214 Mins Read6K

Overview In this tutorial, we will learn How to Control Multiple Servo Motors with Arduino.…

Self Bike Starter using Arduino & Fingerprint Sensor

Fingerprint Sensor Based Self Bike Starter using Arduino

September 16, 2022
Interfacing SPI Camera Arduino

Arducam | Interfacing 5MP SPI Camera with Arduino UNO

May 28, 2023
Interfacing Multiple DS18B20 Temperature Sensors to Arduino

Interfacing Multiple DS18B20 Temperature Sensors to Arduino

February 2, 2025
Alcohol Level Meter using Arduino & MQ-135 Alcohol/Gas Sensor

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

August 21, 2022

IoT Projects & Tutorials

Indoor Environment Monitoring ESP32 ESP32 Projects

Indoor Environment Monitoring with ESP32 & LCD Screen

Mamtaz AlamUpdated:August 20, 202235 Mins Read4K
C1001 60 GHz mmWave Sensor with ESP32 ESP32 Projects

C1001 60 GHz mmWave Sensor with ESP32 for Sleep, Fall, Life Detection

Mamtaz Alam12 Mins Read8K
Modbus RTU ESP32 RS485 Communication ESP32 Projects

How to use Modbus RTU with ESP32 to read Sensor Data

Mamtaz AlamUpdated:February 2, 202510 Mins Read31K
ABP LoRaWAN Node Arduino LoRa/LoRaWAN Projects

ABP-based LoRaWAN Node with Arduino & LoRa SX1276

Mamtaz AlamUpdated:May 28, 20237 Mins Read4K

Learn Electronics

Cycloconverters Design, Working, Types & Applications

Cycloconverters: Design, Working, Types & Applications

May 20, 2023
Full Wave Bridge Rectifier

Full Wave Rectifier Basics, Circuit, Working & Applications

August 4, 2023
Dc-to-DC Step Down Buck Converter

Buck Converter: Basics, Working, Design & Application

August 4, 2023
Half Wave Rectifier

Half Wave Rectifier Basics, Circuit, Working & Applications

August 4, 2023

Product Reviews

Rust Arduino Arduino Projects

How to Run Rust on Arduino UNO

Mamtaz AlamUpdated:May 20, 202316 Mins Read3K

Overview The popularity of the Arduino programming platform has increased to the point where most…

KAIWEETS KTI-W01 Thermal Imaging Camera In-Depth Review

KAIWEETS KTI-W01 Thermal Imaging Camera: In-Depth Review

April 1, 2025
MyArm 300 PI 2023 - Portable 7-Axis Robotic Arm Review

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

February 2, 2025
The Best 60W Electric Soldering Iron Station

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

June 28, 2025
Shenzhen Huaqiu Electronics

Shenzhen Huaqiu Electronics Approach for upgrading Electronics Industry

April 14, 2024
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Don't Miss

Lithium Ion Battery Charger Circuit

Lithium-Ion Battery Charger Circuit using MCP73831

Amazon AWS IoT Core ESP32

Connecting ESP32 to Amazon AWS IoT Core using MQTT

soil EC sensor arduino

DIY Soil EC Salinity Meter using Arduino & Soil EC Sensor

BME280 Raspberry Pi Pico W Web Server Weather Station

BME280 & Raspberry Pi Pico W Web Server Weather Station

Brain Computer Interface

Brain Computer Interface (BCI) System Overview & Applications

Build a DIY Customized Mini PC using Raspberry Pi 4

Build a DIY Customized Mini PC using Raspberry Pi 4

Trending Posts
  • IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
    IoT AC Energy Meter with PZEM-004T & ESP32 WebServer
  • Silicon Controlled Rectifier (SCR): Construction, Working & Applications
    Silicon Controlled Rectifier (SCR): Construction, Working & Applications
  • 12V DC to 220V AC Inverter Circuit & PCB
    12V DC to 220V AC Inverter Circuit & PCB
  • Buck Converter: Basics, Working, Design & Application
    Buck Converter: Basics, Working, Design & Application
  • How to use INA226 DC Current Sensor with Arduino
    How to use INA226 DC Current Sensor with Arduino
  • Designing of MPPT Solar Charge Controller using Arduino
    Designing of MPPT Solar Charge Controller using Arduino
  • MAX30102 & Arduino: Heart Rate + Blood Oxygen Monitoring
    MAX30102 & Arduino: Heart Rate + Blood Oxygen Monitoring
  • ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
    ECG Graph Monitoring with AD8232 ECG Sensor & Arduino
  • SG3525 PWM Inverter Circuit 12V to 220V, 300W, 50/60 Hz
    SG3525 PWM Inverter Circuit 12V to 220V, 300W, 50/60 Hz
  • Measure Pitch, Roll, Yaw with MPU6050 + HMC5883L & ESP32
    Measure Pitch, Roll, Yaw with MPU6050 + HMC5883L & ESP32

Raspberry Pi Projects

Edge Detection & Motion Sensing with OpenCV on Raspberry Pi
Raspberry Pi Projects

Edge Detection & Motion Sensing with OpenCV on Raspberry Pi

Mamtaz AlamAugust 26, 2023
Raspberry Pi Embedded System Development Kit for Beginners
Raspberry Pi Projects

Raspberry Pi Embedded System Development Kit for Beginners

Mamtaz AlamAugust 18, 2023

Raspberry Pi Pico Projects

TM1637 Raspberry Pi Pico Raspberry Pi

Using 7-Segment Display TM1637 with Raspberry Pi Pico

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

Control Stepper Motor with A4988 Driver & Raspberry Pi Pico

DHT11 Raspberry Pi Pico Raspberry Pi

Interfacing DHT11 Temperature Humidity Sensor 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 LED Control using Blynk 2.0 & Raspberry Pi Pico W Raspberry Pi Pico W Projects

IoT LED Control using Blynk 2.0 & Raspberry Pi Pico W

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

Power Electronics

0-35V Variable Power Supply Using XL4015 DC-DC Converter Power Electronics

0-35V Variable Power Supply Using XL4015 DC-DC Converter

Mamtaz AlamUpdated:October 2, 202213 Mins Read4K
DC-DC Converter using 555 Timer IC

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

October 2, 2022
3.7V to 9V Boost Converter

DIY 3.7V to 9V Boost Converter Circuit using MC34063

May 29, 2023
Boost Converter 3.7V to 5V

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

October 2, 2022

555 Timer Projects

Adjustable Auto On Off Delay Timer Circuit Using 555 IC 555 Timer Projects

555 Based Adjustable Auto On Off Delay Timer Circuit

Mamtaz AlamUpdated:February 14, 20253 Mins Read2K

Overview In this tutorial, we will build an IC 555 Based Adjustable Auto On Off…

Flashing Police Light LED Effect using 555 Timer

Flashing Police Light LED Effect using 555 Timer

June 25, 2023
LED Blinking Circuit using 555 Timer

Automatic LED Blinking Circuit using 555 Timer IC – LED Flasher

February 14, 2025
Project for Girlfriend - Heart Shaped Serial LED Flasher Circuit using 555 Timer

Heart Shaped LED Flasher Circuit using 555 Timer

June 25, 2023
Light Dimmer Circuit using 555 Timer IC & MOSFET

Light Dimmer Circuit using 555 Timer IC & MOSFET

December 2, 2024

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 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 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…

Latest Posts

ESP32 Projects

ESP32 IoT Vehicle Motion Analyzer with MPU6050 & LIS3MDL

Mamtaz AlamUpdated:April 27, 202612 Mins Read1K
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
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
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