DuWayne published a new build: I have been spending way too much time playing with the new 3D printer, so have to get back to some electronics. Since the next CWTD.ORG episode is coming up, I decided to build another ‘Test Gadget’. This time it is a Signal Generator based on the SI5351 clock generator. […]
Category Archives: gadget
DC voltmeter test gadget
DuWayne posted an update on his test gadget project we covered previously: The picture shows the completed DCVM test gadget in 4 channel mode measuring the 3 voltages present on the headers used to connect the individual test gadgets. I was running this off of the PC without the 12 volts connected for external power, […]
Rombus pinball – a LattePanda mini pinball machine
Matt Brailsford (aka Circuitbeard) has a nice write-up about building his mini pinball machine with a lattepanda core running dual monitors: I generally start my projects by thinking about the hardware that I’m going to want to use as I’ll need to know sizes when it comes to the design phase. My first thought was to […]
PSOC – design and implementation of a 12 lead portable ECG
Alex Lao and his team at McMaster University have developed a compact, battery powered, 12-lead electro-cardiogram: During the academic year of 2016-2017 at McMaster University, in conjunction with Dr. DeBruin, Christina Riczu, Thomas Phan and Emilie Corcoran, we developed a compact, battery powered, 12-lead electro-cardiogram. The project won 1st place in the biomedical category at […]
Solid-state joystick
Paul Gardner-Stephen writes: Early in the year, one of my colleagues, Damian, showed me one of these strain-gauge solid-state joysticks that they were using as part of the undergraduate engineering curriculum. Their goal was to teach the students how to read strain-gauges. But I immediately saw the applicability for making a no-moving-parts super-robust joystick for […]
SDI-12 USB + Analog prototype
Liudr has designed and built a SDI-12 + Analog USB adapter. Project info at Liudr’s blog.
Valve’s “Lighthouse” optical tracking system
Travis stumbled across an interesting project at Bay Area Maker Faire, the Lighthouse Optical Position Tracking by Alan Yates of Valve. He writes: While walking around the Bay Area Maker Faire this weekend, I stumbled across an amazing piece of technology: Valve’s “Lighthouse” tracking system. Valve’s demos were (supposedly) a major contributor to Oculus’ fundraising […]
Arduino time lapse – camera pan device
An Arduino camera pan device project from Bajdi Electronics: I own one of these small action cameras (SJcam SJ4000). I bought it because it’s small, and easy to take with you wherever you go. To make nice stable videos I mount it on a mini tripod. This got me thinking that it would be fun to have […]
Samsung Galaxy S-Pen waveform capture
Kerry Wong writes: I was quite intrigued by the S-Pen that came with my Samsung Galaxy Note 4. According to the specifications listed on Samsung’s site, the S-Pen supplied with Samsung Galaxy Note 4 he S-Pen supports 11 bits (2048 levels) of pressure levels and can be detected at a 15 mm hovering distance from […]
Simple 3D gesture control IC by Microchip
Microchip simplifies 3D gesture IC: Housed in an easy-to-manufacture SSOP28 package, the MGC3030 expands the use of highly sought after 3D gesture control features to high-volume cost-sensitive applications such as toys, audio and lighting. The simplicity of gesture-detection integration offered by the MGC3030 is also achieved through the company’s free, downloadable AUREA Graphical User Interface […]
Blueprintf – a bluetooth serial monitor
Bob Alexander of Galactic Studios made this bluetooth serial monitor for embedded microcontroller projects, the Blueprintf: One way of debugging microcontroller-based projects is to send messages out the UART serial port. Then, a UART-to-USB interface can feed the messages into your PC for display. But I wanted a small, portable device for viewing serial data without […]
MIDI Christmas tree
A MIDI Christmas tree by Peter Marchant: Using an Arduino and a SparkFun MIDI Shield to control Christmas Lights with a MIDI keyboard. The lights cycle colour (green, red, blue, orange) for each note or chord. Imrpovisation based on the minor blues scale on D. Via Hacked Gadgets.
Review: GoPro hero budget camera vs the SJ4000
Mat from Techmoan writes: In this review we’ll find out exactly what you get for your money and whether this stripped down GoPro is worth the price premium over the SJ4000. I’ll run a few head to head video quality tests and list what features each device has in its favour. Ultimately though its down […]
WiFi globalCALCnet with the Spark Core
A wireless calculator networking with WiFi gCn using the Spark Core. KermMartian of Cemetech writes: This current project achieves all the goals of that project, and more: it provides a computer-free way to connect calculators to the internet, and lets the calculators independently configure the bridge device as well. The two components that were necessary to […]
Acoustic impulse marker
Adam Wrobel and Michael Grisanti of Cornell University built this device that tracks sound impluses: The core of our system is hardware based analog circuit, which filters, amplifies, and processes the sounds obtained from the microphones. By utilizing hardware for this, we are able to high frequency signal processing without taxing the microcontroller. Also, we remove […]
Wearable quadrocopter
Nixie, a tiny wearable quadrocopter camera on a wrist band: Team Nixie is developing the first wearable drone camera, which can be worn around your wrist. The team will be presenting their prototype for the Intel Make It Wearable Challenge Finale on November 3, 2014 in San Francisco Via Embedded Day.
HP 8642B backlight Mod
Kerry Wong writes: If you take a look at the picture below, you may recognize immediately that it is a picture of an HP 8642B synthesized signal generator. But if you take a closer look, you probably will notice something different if you have ever used an HP 8642B before. The original HP 8642 series […]
Wearable pupillometer could detect dangerous diabetic condition earlier
Mang Ou-Yang and his team at National Chiao-Tung University have developed a wearable pupillometer. It could detect dangerous diabetic condition earlier: Compared to the existing diagnostic techniques, the pupillometer is a more reliable, effective, portable and inexpensive solution for diagnosing diabetic autonomic neuropathy in its early stages,” said project leader Mang Ou-Yang, of National Chiao-Tung […]
OTTO – The hackable GIF camera
Gustavo Huber and his friends announced that OTTO – the hackable GIF camera is now being offered on Kickstarter! OTTO lets YOU decide how it takes pictures. Besides being the only camera that makes animated GIFs, OTTO’s an image making machine that can transform into hundreds of different cameras with a quick tap. GIFs, time lapses, impromptu […]
Lens flare creating filter, with 3D printed parts
Jan Henrik wrote this Instructable detailing the build of his DIY lens flare creating filter, with 3D printed parts: In this project, I want to show you how you can build yourself a “Lens-Flare-Filter” for your DSLR or digital camera! With the filter, you can easily create a cinematic look for your pictures and videos without spending much money […]