[Mike] built a sensor rig to measure projectile speed. The setup uses a tunnel with two sensors in it. Each consists of a laser diode on one side focused on a photodiode in the other. The two are ...

Speed camera detectors and jammers are used by speedsters to either identify when they need to slow down, or to block a traffic officer assessing how fast their vehicle is going. While the roll-out of ...

With the increasing popularity and growing trend of e-bikes, bicycle system suppliers have set goals to optimise the power and performance of their drive systems. In order to support the driver in the ...

Electronic enthusiasts may be interested in a new open source infrared sensor which has been created to support both Raspberry Pi and Arduino powered projects. The IR Detector proximity sensor has ...