I created design to build a big and expandable floor piano (1 to 8 or more octaves) . They were plenty of challenges with this piano. I wanted all bullet ticked: – Cheap – Big but could fit in a car (from 1 to 8 meters long) – Expandable (from 1 to 8 octaves now) …
Cablecams are a lot of fun, but they’re not inexpensive, even if you need just something small for your action camera. There are commercial solutions out there, like the Wiral Lite, but they’re pretty expensive for what they are. Perhaps even more so than the camera you’re mounting to it. When Kasper at MAKESOME was asked by his friend …
THIS GUY BUILT A DIY CABLECAM USING A CHEAP RADIO CONTROLLED CAR Continue Reading
If you’ve got a party coming up and are looking to add a little bit of excitement, you might be interested in this recent project from [Gav Lewis]. The build is based on a commercially available party light, but with some upgraded components the final product is brighter and more dynamic than it was stock. Realistically, …
Over the last few years, we’ve seen the value of putting tiny WIFi-enabled microcontrollers on a module that costs a dollar or two. Those smart light bulbs in your house probably have an ESP8266 in them, and you can build a WiFi-enabled anything with one of these chips for next to no money. Now there’s …
Introduction Power supplies are everywhere these days. With the advent of switching power supplies, the cost of high-current supplies has radically dropped. Maybe you’ve noticed how the large, heavy, wall-wart style adapters are no longer lurking around your baseboards, falling out of their sockets? Or occupying several of your valuable power-strip positions? But not all …
SparkFun: A look inside some common power supplies Continue Reading
I like cheap electronics for playing. Cheap is good for budget conscious hobbyists and China is delivering lots of toys for playing – one being the inexpensive “mono” OLED displays. The single-color displays often come in a dual-color implementation where the top row of pixels are one color and the remaining majority of the lower …
I’ve used this simple circuit several times to drive motors (like in my Stair Climbing robot) as well as solenoids. I originally picked it up from this instructable which is focused on controlling a solenoid. I wanted to isolate this circuit in its own Instructable as a motor driver so I could easily reference it …
Function generator is a rely useful tool in the lab, a simple version can be build at home, there’s a lot of examples on the Internet, some are much more complex and powerful, but this one is intended to be really simple and cheap. It can be also built-in in some bigger projects that also …
What do PCB production and fake fingernails have in common? They both use UV light sources of high intensity and, as luck would have it, those light sources have exactly the same wavelength. Only the ones for PCB production are usually quite costly and the ones for fake fingernails are a bit more competitively priced. …
Make a proper PCB exposure unit out of a cheap UV nail curing lamp Continue Reading
During presentations, I avoid being stationary and generally like to walk around in order to increase the interaction between me and the audience. However, I am constantly being faced with the burden of having to go back to the laptop, in order to change a slide or tell a person sitting by the laptop to …
