A mumble server can be installed on the Raspberry! It's a great solution for anyone who wants a VOIP server that they can share with a few friends.
Raspberry Pi Handlheld - Make a handheld Pi based computer with keyboard and touch screen. Runs Linux, or course.
Picture of Arduino RFID Reader / MFRC522 Turorial
Electronics Reference Sheet
How to hack Gmail , Wifi , Twitter, Facebook account hack with kali linux
10 Tricks to Make Yourself a Chromecast Master. Very handy guide.
Raspberry pi phone
Complete Guide for Ultrasonic Sensor HC - SR04 | Random Nerd Tutorials
A handmade printed circuit board (PCB) is often used in robotics and electronics in general. Here are the basic steps to build a circuit board. Design your circuit board. Use PCB computer-aided design (CAD) software to draw your circuit...