This site is about much more than inductors but if you came looking for info on inductive kickback or inductors in general, this light crash course should make it clear in no time using a few random anthropomorphizations I’ve found useful. Inductors: the grumpy old man of passive components Inductors stay on top of current…
Rick and Morty Portal Gun: Design, Implementation and Assembly
- by: Pat Deegan
- On
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 tube/crystal thingy, wave file player and laser. Here, I’ll go over the design and construction, as well as a few lessons learned along the…
BLE112 In-system Programmer
- by: Pat Deegan
- On
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 breakout). It’s a great chip but one thing that can get annoying is programming the thing. Whether…
The Handicraft Router
- by: Pat Deegan
- On
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 handicraft router. In this specific case, I was trying to get the outputs from a bunch of digital potentiometers to…
Rectifier/Voltage Regulator module: post-mortem
- by: Pat Deegan
- On
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.