Category Archives: Electronics

Satisfying my curiousity about the original Cockroft-Walton voltage multiplier

I was reminded of the Cockroft-Walton voltage multiplier recently, because I was thinking about building a small one for fun, and upon seeing that their development of this started in 1932, I was curious about some of the details of how they built it. In particular: Were there any sort of usable high voltage solid-state […]

First FPGA project ideas

I decided recently that I want to really learn computer hardware design. Not just the theoretical “I know how the machine works” understanding, but actually having done it. So, the obvious thing was to get an FPGA and design stuff using it. fpga4fun was some of the inspiration for this. I ended up ordering one […]

Touch sensor tweaking

The one thing that wasn’t quite behaving right about the LED lamp was the touch sensor. I was having trouble both with it being far too sensitive (and sensitive to interference from other devices nearby — I’d plug in my laptop to an adjacent outlet and it would sense a “touch”), but also it was […]

LED Lamp, done

More details in a couple days…

More LED lamp software development

I’ve completed the software. I abandoned the SOIC test clip in favor of wires soldered directly to the board. The SOIC test clip loses contact with the IC if you just look at it funny. It’s very irritating. In the future, all boards will have an in-system programming (ISP) connector. I just need to finish […]