Sylphyo played on virtual instruments

Sylphyo with Headphones

Some sound samples played with a Sylphyo on Mainstage3 with several sampled woodwind instruments like the clarinet or the traverse flute. […]

How to Install and Configure the Display GEN4-IOD-24T

This week I tried to configure and program a gen4 IoD 24T color display with resistive touch panel from 4D Systems for an IOT project. The display has an integrated ESP8266 and therefore WIFI. We had bought the whole kit, which means display, universal programmer adapter and some cables. There was no quick start guide […]

Sensor Network with Udoo and several ESP8266

Udoo as autonomous server for a sensor network

This is quick summary how to build a sensor network with Udoo and a couple of ESP8266. It’s a project sketch, not a tutorial. To build something similar you have to be familiar with microcontrollers, sensors, MySQL, phpMyAdmin, Linux, Node.js and the Rest API. Installing and configuring Samba could also be useful.

One of the […]

Sonic Pi – Advanced programming

Recently I stumbled upon Sonic Pi, a sequencer with which you can generate music programmatically. There exist versions for Windows, Mac, Linux and Raspberry Pi (that’s where the names comes from). For Windows you can get it as stickware, no installation needed. And the best: it’s free!

If you don’t have it yet, go […]

Remote Controlling Udoo

Remote control Udoo with an android smart phone

Remote control Udoo with an android smart phone

Some days ago I bought a Udoo. This microcontroller is a mixture of Raspberry Pi and Arduino. It has two processors and many interfaces as a Raspberry Pi and it is compatible with the Arduino Due. The main reason why I bought it is that […]

Grails and real databases – a bumpy road

Nearly since the beginnings I have observed Grails as a web framework and played around with it. I have developed database backed web applications connected to an ERP for the last 15 years and I have seen the technology stack for web applications evolve from CGI over ASP or Struts and JSP to ASP.Net, Spring […]

Changing the email batch size in LimeSurvey

How to reduce the email batch size in older versions of LimeSurvey by editing config.php. […]