Last year I partecipated to the Spring Clean competition and I enjoyed it a lot. It gave me the push to complete what I had left over at the time, freeing up some bench and mental space. This year, when I discovered that the Spring Clean challen...
The WrongCo Garden Guardian (a Rube Frankenstein)
Off the Shelf Intro: Several years ago, there was an E14 discussion about gardens & pest control. I’d started a project to discourage deer from pillaging my yard & garden. The deer...
Hi makers!
A little context, I have a pair of speakers that I have never heard music coming out of, I know thisounds a bit strange, I bought them for a very low price from a thrift store (I couldn't hold myself ), and they seemed unused. After s...
Introduction
For the last one year or so, I have been working on a project that was based on Nordic Semiconductor Bluetooth chip and IR temperature sensor array. Unfortunately, the project was not finishing due to many reasons. One of them was some t...
I have one project that was really rewarding from an electronics perspective but really underwhelming in the presentation department. I am hoping that this Spring Clean challenge will provide the incentive to remedy this.
Eight years back I bou...
Introduction:
Search-and-rescue operations are among the most difficult yet important applications of robotics engineering. In disasters like building collapses, industrial accidents, nuclear incidents, and so on, the ability to quickly find su...
What is the Sydney Rail Network Live Map?The 30x30cm PCB takes live, public data from NSW transport's GTFS, it then beautifully displays it on the PCB via RGB LEDs over WiFi. The idea of the project was to build something mostly static that sits ...
youtu.be/j7pUc8dI9x4
When I was a child, I had a dream of making my own smartwatch. At that time, I had no knowledge of engineering, electronics, or 3D design, but my imagination was full of ideas. So, as a kid, I created a watch from ca...
youtu.be/j7pUc8dI9x4
When I was a child, I had a dream of making my own smartwatch. At that time, I had no knowledge of engineering, electronics, or 3D design, but my imagination was full of ideas. So, as a kid, I created a watch from ca...
Background: What Is a Lissajous Figure?
When you feed two sine waves into the X and Y inputs of an oscilloscope in XY mode, the resulting trace is a Lissajous figure, a looping pattern determined by the frequency ratio and phase offset between the tw...
I really love these Spring Clean Projects. They help me try to get something accomplished. Alas, like many, one project begets another - or a diversionary mini-project, at least. They can multiply like tribbles if it weren't for the...
Finishing the P.U.L.S.E. ECG System
Portable Unit for Live Signal Electrocardiography
A bit of history
Ever since I started getting into electronics, I have had this idea of building my own ECG device. Something that could actually show heart signal...
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