This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...

Does your drill go as fast as the manufacturer says it will? Well, you’d need a tachometer to figure that out. They’re not that expensive to buy, but as [Elite Worm] shows, they’re not that expensive ...

We’re certainly no strangers to unique timepieces around these parts. For whatever reason, hackers are obsessed with finding new and interesting ways of displaying the time. Not that we’re complaining ...