If you are in a plan to build your own speedometer for your next robotic vehicle, ofcourse you need an RPM sensor to complete the task. Today, almost all sensor modules for use with microcontrollers ...

Wahoo Fitness recently released the RPM Cadence Sensor that works on both Bluetooth 4.0 and ANT+ wireless frequencies so it can be paired with smartphones and cycling computers like the Garmin Edge ...

Adding an additional fan to your PC is usually pretty straightforward, but as [Randy Elwin] found, this isn’t always the case with the newer Small Form Factor (SFF) machines. Not only was the standard ...

So I just bought this nice new switch off Ebay for cheap and it has 4 very loud fans in it. I'd like to replace them with lower noise (and lower flow, I'll take my chances) fans so I can hear myself ...