jurasz.de

Jarek Jurasz

The LED lightbulbs should use less power (sure) and work for years (not quite). At least 20.000 hours - that would be almost 10 years at 6 hours a day. But I see many of those die after a month or two. They flicker or seem completely dead. Why? What can be done?

Continue reading...

Reset needs time!

I found an interesting and inexpensive (about 10-12€) EC1204B DIY electronic clock kit on aliexpress. There was not much documentation about the kit, but there is enough on the net. Cristian Copcea has gathered a lot of documentation on this kit and even provides an alternati...

Continue reading...

For private use I prefer to buy two cheap Chinese devices than a single expensive one. I just do not use them all that often and prefer value and flexibility over quality. So I got myself a Hantek DSO5102P 100 Mhz digital storage oscilloscope, which I upgraded to 200MHz and coupled with my laptop...

Continue reading...