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Tutorials, guides, and news about electronics

Reviews

DHT22 vs BME280 vs SHT31: Picking the Right Temperature and Humidity Sensor

Three sensors that all read temperature and humidity, with very different accuracy, interfaces, and failure modes. Here is how to choose without wasting money.

8 min readJuly 31, 2026
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Reviews

ESP32 vs Arduino Uno: Which Should a Beginner Actually Buy?

The ESP32 is faster, cheaper per feature, and has WiFi built in — yet the Arduino Uno still wins for some projects. Here is the honest comparison, with the gotchas nobody mentions.

7 min readJuly 31, 2026
Reviews

LoRa vs NRF24L01 vs Zigbee vs WiFi: Choosing a Wireless Link for Your Project

Range, power, data rate, and cost pull in opposite directions. A practical guide to picking the right radio for IoT projects in India, including licensing rules.

8 min readJuly 31, 2026
ESP32 DevKitC-32E development board
Guides

Getting Started with ESP32: A Complete Beginner's Guide

Learn how to set up your ESP32 dev board, install the Arduino IDE, connect to WiFi, and build your first IoT project step by step.

14 min readApril 10, 2026
ESP32-S3 DevKitC development board
Reviews

ESP32 vs ESP32-S3 vs ESP32-C3: Which Board Should You Pick?

A detailed comparison of the three most popular ESP32 variants to help you choose the right microcontroller for your next IoT project.

15 min readApril 8, 2026
Ra-01H LoRa wireless module
Guides

Building a Long-Range IoT Network with LoRa and ESP32

Learn how to build a kilometre-range IoT network using LoRa modules and ESP32, perfect for farm monitoring, weather stations, and remote sensing.

17 min readApril 6, 2026
MG90S micro servo motor with metal gears
Guides

Controlling Servo Motors with Arduino: From Basics to Precision

Master servo motor control with Arduino — from basic sweeps to smooth multi-servo coordination for robotics and automation projects.

15 min readApril 4, 2026
UNI-T UT890D+ digital multimeter
Guides

How to Use the UT890D+ Multimeter Like a Pro

A practical guide to mastering your UT890D+ multimeter — from basic voltage checks to advanced debugging of electronics projects.

16 min readApril 2, 2026
LM2576 DC-DC buck converter module
Guides

DC-DC Buck Converters Explained: Powering Your Projects Efficiently

Understand how buck converters work and learn to efficiently power your microcontroller projects from batteries and higher-voltage sources.

17 min readMarch 30, 2026
ESP32 DevKitC board ready for weekend projects
Projects

5 IoT Projects You Can Build This Weekend

Five practical IoT projects using ESP32 and common sensors — from weather stations to plant watering systems — each buildable in a single weekend.

18 min readMarch 28, 2026
Relay module connected to a microcontroller
Guides

Relay Modules Demystified: Switching High Voltage Safely

Everything you need to know about relay modules — how they work, how to wire them safely, and how to control high-voltage appliances with Arduino and ESP32.

18 min readMarch 26, 2026
Various electronic sensors for IoT projects
Reviews

Choosing the Right Sensor for Your Next Project

A practical comparison of popular sensors across six categories — temperature, distance, motion, light, gas, and soil — to help you pick the perfect one.

20 min readMarch 24, 2026
ESP32 and LoRa modules for home automation
Projects

Home Automation with ESP32 and LoRa: A Step-by-Step Guide

Build a complete home automation system using ESP32 and LoRa — control garden watering, monitor your gate, and automate terrace lights from a single dashboard.

25 min readMarch 22, 2026

Showing 12 of 53 posts