Main Content

3D Printed Lathe

“Before I begin at the moment I am waiting for final parts to take all my pictures for the sake of this instructable. I am going to post this before I finish so people can have an earlier access. I …

A Printed Three-wheeled Smart Car Kit

“This design is based on the Freenove Three-wheeled Smart Car Kit for Arduino Uno Robot Wireless Ultrasonic kit. The only place to get these shields.”

Beacon Keyer

“This is likely the first ham radio related project that I document here on this blog. But my very first PIC project was a beacon keyer that I made for my father, HB9BBD. That was was in 2013. A beacon …

Bi-directional Communication Robot

“Most of the robot work on uni-directional commands like Bluetooth, joystick etc. But what if you want some data back to your transmitter ? This project creates a bi-directional system, that is data is send and received continuously.”

Build an Arduino Multi-Node BLE Humidity and Temperature Sensor Monitor

“Use Cypress Solar-Powered BLE Sensors, an Arduino UNO, and an HM10 BLE module to make your own multi-node temperature and humidity monitor and display. Previously, we presented an overview of the new solar BLE beacons from Cypress Semiconductor. It is …

Current Sensor Amplifier & Over Current Switch

“Current sensor amplifier and over current switch project is based on ACS714-30A current sensor and LM358 Op-amp, ½ of LM358 op-amp used as an amplifier for low voltage and 2nd 1/2 LM358 op-amp used as comparator which provides …

Electronics: Radio and Electronics Cookbook

“Radio and Electronics Cookbook is a unique collection of electronics projects, ideal for all electronics enthusiasts and experimenters. The simple step-by-step instructions also make this book ideal for amateurs seeking to build up their electronics skills and knowledge. The projects …

Flexible tactile sensor lets robots feel

“Using silicon and carbon materials, researchers at the Korea Advanced Institute of Science and Technology (KAIST) have developed a tactile sensor that can act as skin for robots, which can absorb shock and distinguish various forms of touch. Current robotic …

How to Make a DC Motor Speed Controller

“Previously I made a DC motor Speed Controller, the design was good but it could be used with only 12 V motors. Soon I needed to control 24 V motors, so I had to come up with a design I …

Internet of the future: massive mobile antennae technology

“Mobile base stations for 5G solutions will consist of hundreds of small antennas. Benefits include faster transmission, improved energy efficiency, better security and wider coverage. Researchers at Aalborg University are at the forefront of developing the new antenna technology. As …