| A stroboscope disk for 60 Hz mains and an Arduino program to produce 120 Hz pulses.
Pjotr1010 (12)
| Optically adjusting the speed of a turntable with a stroboscope sounds easy, but has become complicated today. Here are stroboscope discs yo...
| Adjusting the speed of a turntable has become difficult with modern LED lights. Stroboscope disks are expensive if available at all. Disks i...
| A bad capacitor shows different capacitance values for charging and discharging; a perfect capacitor will have the same values. Knowing this...
| A capacity meter is more useful than you might expect.
| Now that I am at it, might as well add this function too. Sounds familiar? This is such a project. It measures frequency, period and duty cy...
| Measure: Frequency + Period + Pulse + Pulse/period + Capacity + Event counting. Bonus: decode DCF77 pulses and show date and time. The DCF7...
| Smart Meter WiFi interface. This little project fills in the gap between the smart meter P1 interface and your WiFi network at home. Only...
| The leddification of my dear old tungsten lamp Why is it so difficult to replace the halogen rod lamp in a traditional up light or up/down...
| Smart energy meters are being installed all over Europe and probably also in other parts of the world. They allow energy providers to better...