Kategori: Electronics
-
The color mix master
A while back a friend asked me if I could build a custom toy for a little guy called Oscar. She said something in the lines of ”The little guy is crazy about knobs, button, switches and blinking lights. You know, the same stuff that you like.” Of course I could not pass up an…
-
T-1000c, Killer robot chickens from the future
This easter the city has placed two giant chickens made from twigs outside my house as an innocent easter decoration. I however immediately recognized them for what they were; T-1000c:s, killer robot chickens sent back from the future! All I needed to complete the transformation was the telltale red glowing eyes. I set out to complete…
-
Hypno-Jellyfish
I have always wanted to use an accelerometer in a project, so when my daughter Beatrice was born I knew exactly what to build; The Hypno-Jellyfish! The Hypno-Jellyfish is a jellyfish-shaped toy filled with RGB LEDs that changes color when you move it. So if you have just become a father, (or want to give…
-
Stockholm Mini Maker Faire 2014
Here are some pictures from the Stockholm Mini Maker Faire 2014. I didn’t have much time to look around during opening hours so most of the pictures are taken before the faire opened on Sunday morning. The most impressive build by far was done by Jonny Eriksson with his creation popmaskinen (The pop machine). Popmaskinen…
-
StippleGen2
Today I have been trying out StippleGen2 by Evil Mad Scientist. Stippling is when you create an image from little dots of the same color but with different sizes and with different density. StippleGen2 is built in Processing and uses an algorithm written by Adrian Secord. To try it out I used this classic picture…
-
What can you cut with a 300mW DIY laser cutter?
I built this laser cutter after being inspired by this laser cutter and the design is almos identical, there for I will not go into details about my build but will instead focus on what you can do with it. Since the diode (LPC-826) I have used is from a DVD burner and have an output power of…
-
Ketosense – An Arduino based ketosis detector
In this post I will go through the hardware and software of the instrument I have made. If you are curious to why I have made it, I would recommend that you start reading the other posts I have done about this project and work your way forward. Just click on Ketosis detector under categories.…
-
DIY graphene videos
In the recent days videos from people who actually made some DIY graphene has started to pop up on youtube and in this post I will introduce you to a few of them. Robert Murray-Smith One of the very first people who I think deserves a mentioning is Robert Murray-Smith. Robert is a MacGyver of DIY…
-
Calibrating a Figaro TGS822 sensor, by drawing…
After consulting with the boys and girls at chemicalforums.com about how to produce an ethanol gas with a 300 ppm without having to buy a lot of fancy gear and thus finding out that it was more difficult then I initially thought I have reluctantly decided that I don’t think I will be able to pull…
-
Hi, I’m Ketosense
During the weekend I have managed to put together a first very early prototype of my ”Ketosense”. It does register when a person is blowing in to the ”gas chamber” where the sensor is located and something that feels encouraging is that my wife gets significantly higher readings then me. Since I’m still a carbohydrate…
jenslabs 