Over the years, I have come across various security door access systems such as keypad access, magnetic strip, RFID tags and iButtons. I have found ibuttons and RFID

The latest Raspberry Pi was unveiled on the 29th of February and  we decided to acquire one to try it out. Physically, the Pi 3 looks very similar

Introduction Radiation detection systems often consist of a detector, a charge sensitive pre-amplifier, a pulse shaping amplifier and a multi-channel analyser. The detector converts interaction of photon energy from an

The post briefly shows a circuit that could be used to transmit data optically (through the air) to a receiver. In this case, we made a circuit to

This post describes the use of an ultrasonic sensor to measure distance of a target. The goal of this post is to help you understand how this sensor works