This is certainly the cheapest and simplest Internet radio that you can make yourself if you have minimal knowledge in the field of electronics, and all thanks to this universal and practical display module.

I am Abdullah, a mechanical engineer specializing in high-quality CAD modeling and design. This single-seater Formula Student style race car showcases my skills in creating precise, functional, and visually appealing models. Featuring a lightweight tubular chassis, ergonomic bucket seat, aerodynamic rear wing, and detailed suspension and drivetrain systems, it demonstrates both technical accuracy and engineering creativity. I provide CAD modeling, 3D rendering, and manufacturing-ready drawings for automotive, mechanical, and industrial projects. My focus is on precision, practicality, and performance, turning concepts into professional, manufacturable designs that exceed expectations.

A reusable template for makers: touch UI, instant reaction, and MCU-based neural speech. CrowPanel UI + TinyTTS voice: instant offline speech on the MCU, ready to extend and remake.

In this tutorial, I am going to talk about the PC817 Optocoupler which is one of the most common and inexpensive 4-pin optocouplers.

This DIY project demonstrates how to create a real-time fire detection and alert system using a NodeMCU ESP8266, a flame sensor module, and the Blynk mobile app. When the flame sensor detects fire, the system alerts the user via the mobile app and optionally activates LEDs or buzzers locally

A simple but very useful Zener diode tester

This is a “smart moving dustbin” (trash can) which can be controlled via smartphone (likely via Bluetooth or WiFi) and is capable of moving in all directions (forward, backward, left, right) under control

Turn voice into autonomy. Your mini rover learns to bypass obstacles and run full missions — all from simple commands.

This project successfully transforms a vintage TV into a functional and stylish retro clock.

In today's world of smart living, automation is increasingly becoming a part of our everyday lives. This project focuses on building a simple yet effective home automation system using an Arduino microcontroller and a standard infrared (IR) TV remote. The goal is to allow users to control electrical appliances like lights and fans remotely without modifying the remote or using expensive smart devices. By leveraging IR technology, this project demonstrates how a basic remote control can be repurposed to switch household devices on and off through the use of an IR receiver module and relay circuits. It is a cost-effective, beginner-friendly, and highly educational project ideal for electronics enthusiasts, students, and DIY hobbyists seeking to explore embedded systems and automation.

This DIY system is designed to detect motion using a PIR sensor and notify the user via the Blynk mobile app. It uses a NodeMCU (ESP8266) as the core IoT microcontroller, connecting wirelessly to your home network to send real-time alerts whenever motion is detected

This system offers an automated attendance tracking solution by combining RFID technology with IoT capabilities—specifically, NodeMCU (ESP8266) for connectivity and Google Sheets for cloud-based record keeping. It enables real-time capture and tracking of attendance data