5
A while ago, I set up a Minecraft server here in our house, so my oldest son could play Minecraft together with his friends. They love doing that, but without turning on the computer, there was no way of knowing … Continue reading
staffan
Last night was the last day of 2013. So I figured I should do something new to celebrate the new year. Hence, some EL-wire fun. EL-wire, or Electroluminescent Wire, is a lot of fun to use. It looks really cool and … Continue reading
I bought an analog panel meter from electrokit and wanted to test it using an Arduino.My meter (there are other kinds) reacts to current, from zero to 50 μA (0.00005 Amps). So to get it to show 100% (50 μA), … Continue reading
In an attempt to lower the amount of solder fumes that I breath into my lungs while soldering, I searched the net for cheap solutions, and found lots of great do-it-yourself examples! See for instance Kip Kay’s video. Most examples use … Continue reading
When prototyping new Arduino gadgets, I often find the need to use a push button or two. They are quite easy to hook up to the breadboard, but it’s even easier if the buttons are already hooked up on a … Continue reading
I wanted to build something cool using my new PIR-sensor. At the same time, a night light I had bought for the children stopped working. It was a IKEA light that looks like a ghost and that is meant to be … Continue reading
I’ve often felt the need for a steady five volt output that I could use to test various components, such as LEDs, push button, rotary encoders and so on. After seeing a few examples on the internet, I decided to … Continue reading
Just got a PIR sensor. PIR, as I understand, stands for Passive Infra Red. It’s a cool little thing that detects motion, or actually changes of infrared light. Infrared, in this case, is heat. So whenever a person, or part … Continue reading
Out of curiosity (which btw is one of my main driving factors in life), I bought a couple of rotary encoders. A rotary encoder is a knob that turns in small steps. It has no minimum or maximum turning angle … Continue reading
Buttons can bounce? Oh, yeah! If you’ve ever tried programming a microcontroller, you most certainly have come across the problem: buttons can bounce. This means that when you push a button, it goes from off to on, but sometimes it … Continue reading