Some weeks ago I got some Adafruit NeoPixel, a compact RGB LED module. Each LED module has a WS2812 chip that only needs three wires: power, ground and data. The data protocol is self-clocking, at a rate of 800KHz. The LED modules can be chained to build longer LED stripes. (For more details see the […]
I’ve been playing with the GPIO capabilities of the Raspberry Pi before using Python, which comes with easy GPIO access for the Raspberry Pi.
Java 8 for ARM
As I’m yet not very familiar with Python I got excited when Oracle accounced Java 8 for the ARM platform, so I downloaded the JDK […]
Just some shameless self-promotion:
I recently uploaded my 3rd open-source project to SourceForge.net. It’s called jspinfo() and – for all of you who are familiar with PHP – it’s like phpinfo() but as a JSP file.
So, if you are a developer and you need some information about some common server settings, then […]
The mission: getting started with RFID
With my recent gadget order I also bought an ID-12 RFID reader with a corresponding breakout board. The breakout board is needed because the ID12 chip contacts have a 2mm grid while the breadboards have a 2.54mm grid.
NewBase60 is a format suitable for building parts of URLs, e.g. for URL shorteners. Instead of just using numbers for the short links it uses letters as well, while internally still using […]
While I’ll probably (have to) focus on Java for the next month, I just came up with the idea of just another extension method class. It is acually not very helpful but it again shows how powerful extension methods can be.
This is how it can be used:
I know that this piece of code […]
Inspired by a question on StackOverflow (which was actually about using regex to replace strings used for a Hangman game) I hacked together a file in C# that contains a minimal implementation of the Hangman game.
The code is up on Github: https://github.com/jcoder/nHangman
It’s actually more of a protoype, but maybe it’s helpful to somebody.
TagsArduino ATtiny blinking C# Code-Download Coding Converter email FEZ first steps GPIO Hardware ID12 James Java JSP jspinfo LCD LED Lights Linux microcontroller Netduino NETMF Network NewBase60 opensource Panda II PWM Python Raspberry Pi RFID RGB screen server shell slow motion Traffic Light video WS2812