Clap Trap for Arduino

I hacked a little sound trapping setup with a spark fun microphone and a LED on the Arduino Uno. Connect the LED to GND and Pin 13. And the microphone VCC to 5V, GND and the AUD to A0. The program triggers when a +/- threshold from the average is peaking. Have fun,...
[Weatherstation] – Part III – The Arduino code

[Weatherstation] – Part III – The Arduino code

The ideas is to translate the measurements from the sensors into movement of the servos. The sparkfun weather shield gives us: Temperature Humidity Ambient light atmospheric pressure I collect the data every 10 seconds and do an average between the last ten values to...
[Weatherstation] Part II — the hardware

[Weatherstation] Part II — the hardware

This is part II of the weather station. Part I shows the LaTeX code for the scales. Part III talks about the arduino code. This the step by step build-up. You need to get at teabag containment, I got a wooden one, which has four compartments. I used thin plywood and...

BubbleSort vs. HeapSort on BlinkyTape

How to visually show the speed difference between BubbleSort and HeapSort? I used the BlinkyTape and implemented it in Processing (aka Java) with the help from BlinkyTape library. The 60 LEDs where stored in an ArrayList of the class, which contains the position on...

#MeArm – Pocket Sized Robot Arm

At the Hackaday Prize 2014 they held workshops in robotics too and one of the projects was the MeArm. I was given on of this robot arms to use them in the CoderDojo in Munich later this year. Here is a short introduction of what I want to teach the kids soon....