Tag: electronics

Oscilloscope watch

It tells time, and has a calendar, alarm, oscilloscope, waveform generator, logic analyzer, protocol sniffer, and a frequency counter.

There’s about a month to go on the Kickstarter campaign, if you want one.

The maker, Gabriel Anzziani, has a good track record. Here are some of his earlier devices:



Voltset – Multimeter plugs into Android phone

The Voltset devices plug into an Android phone and offer multimeter-type functions. The Mini Voltset measures voltage and continuity. The Mega Voltset adds resistance measurements.



Intel’s Minnowboard

About a year ago Labrigger covered the Raspberry Pi, a single board computer. In some ways, it’s like a high-powered Arduino, but really, it’s a miniature PC. Albeit, a PC that uses an ARM…



Linux development boards

Open Electronics has a nice overview and comparison of Linux Development boards like the Raspberry Pi.



Touchscreen display for Arduino and more

4D Systems sells screens and touchscreens for Arduino, Raspberry Pi, and other systems. Importantly, the code is portable (mentioned in the video above), they have good support, and the hardware plugs right into the boards. It doesn’t get much easier than this. They have resellers…



Inventables: raw materials source

Inventables is a web retailer with a decent site that makes it easy to find raw materials and interesting components. E.g., stretch-sensing rubber and conductive velcro.



Use 50 ohm BNCs, not 75 ohm

Coax BNC cables come in two flavors, 50 ohm and 75 ohm. For experimental rigs (PMTs, DAQs, amplifiers), always buy 50 ohm cables. The 75 ohm versions are for video…



Superbright LED spot

Lukas Fisher’s got a new post up covering the build of a super bright LED spotlight, including details on his experience with hotplate-based reflow soldering. (link)



LabVIEW Style Guide

LabVIEW is a great tool, but the block diagrams can become a mess if the programmer isn’t careful. This book was recommended to me by David Ferster, whose LabVIEW code is very clean…



Nice enclosures

Most project enclosures are cheap and ugly. I challenge anyone to find something from PacTec that Dieter Rams would want in his house.

The following suggestions might not be Rams-worthy either, but they’re a…



The Labrigger General Electronics Troubleshooting Guide

This is a work in progress, please contribute additions, thoughts, and criticism (constructive and otherwise) in the comments.

Step 0. RTFM.

Step 1. Turn it off and back on.
Congrats. There is a…



Firmata for Arduino

I’ve referenced Toolduino before. Now I use Firmata more (upon which Toolduino is based). It turns the Arduino into a simple interface, rather than letting it think at all. I find this…



Screw shields, simple pleasures

These screw shields make it simple to connect a bunch of stranded wire to an Arduino. This one is available here, or here. It’s a little thing, but it saves a lot…



Beautiful enclosure

Beautiful integration of a laser cut enclosure, its contents, and its wiring. (link)



Wire gauge frequency ratings

As previously noted, homemade cables are to be avoided. However, stock cables are not always up to spec. For example, if one wants to drive stepper motors using a 9-pin…