No Ferric Chloride? No problem: Home-made etchant to the rescue!
It was 11pm and I was on a roll. Having prototyped my little circuit and transferred the mask onto a copper board, I was ready to create a nice permanent PCB version of the module. Far from perfect...
View ArticleRectifier/Voltage Regulator module: post-mortem
Needing a modular power supply that could handle a few amps and both AC and DC input, I recently designed a circuit to perform the task. Here I’ll go over the main points and a few lessons learned....
View ArticleThe Handicraft Router
This is a quick post to share a technique I recently invented (or, more likely, re-invented) that can be of great help when you’re trying to layout a circuit but are overloaded by possibilities: the...
View ArticleBLE112 In-system Programmer
I do a lot of work with bluetooth low energy (BLE or bluetooth v4.0) and have a few different BLE modules I’ll turn to, but often end up using the Bluegiga BLE112 (as evidenced by my DIY BLE112...
View ArticleRick and Morty Portal Gun: Design, Implementation and Assembly
I love Adult Swim’s Rick and Morty so, for Halloween this year, I created my own version of Rick Sanchez’ Portal Gun–including a 3d-printed enclosure, printed circuit board, negative energy density...
View ArticleKicad: Techniques, Tips and Work-arounds
Kicad is an cross-platform, open source, electronics design suite. I’d toyed with it in the past, but had never made it to actually designing real projects with it until recently. Here, I’ll go over...
View ArticleReal world Kicad project postmortem and more tips
As a follow-up to my intro/tutorial, I’ll go over a few more lessons learned using Kicad including some tips that should be of help to anyone embarking on a similar journey. The power module project...
View ArticleTinyG Wiring System for LitePlacer
As part of my LitePlacer pick and place machine build, the wiring was more familiar than the mechanical assembly but still pretty complex. To simplify things, and to decouple the TinyG from the...
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