Category Archives: Programming

Measuring the Water-Level of a Cistern

To measure the water level of our cistern, I started to build a little cistern monitor based on a hacked TP-Link MR3020 router running OpenWrt and a SRF05 ultra sonic range finder. The software project mainly consists of a kernel module and a web service to access the data through a simple web-ui or by [...]

Scratch Remote Sensor API

Pynetsense is a Python library that provides a simple to use API for implementing Scratch networking sensor clients. For communicating with Scratch, the remote sensor protocol is used. Beside providing a simple API to manage messages and variables, a wrapper framework is provided. The wrapper framework helps with implementing sensor clients that run in the [...]

Propeller-Installer Project of the Week at Parallax

My little installer script for helping setting up a Propeller Tool-chain on Linux/ARM, also mentioned on hackaday last month, was chosen for “project of the week” from Parallax (the makers of the Propeller).

pyscmpd Running on the Pi

Gave “pyscmp” a first try on the Pi, works so far (some minor issues regarding dbus and jack-audio).

pyscmpd Making Some Progress

It seems to get usable (somehow). “pyscmpd” is now able to do basic play-list handling and playing. Both, “ncmpcpp” and “sonata” are able to browse the tracks of a predefined set of soundcloud users, add the tracks to a play-list and play them. Also the elapsed song time is transmitted to the clients, as well [...]

pyscmpd started

Since I do have so many projects running currently I decided it would not hurt to start an other one. It is a Python based soundcloud music server talking the MPD protocol. Thus, pyscmpd allows (not yet, but maybe in future), to serve music from soundcloud to any MPD client out there. Currently I am [...]

Carambot Client-GUI Update

I decided to re-write the curses based Carambot client GUI completely. The default view of the new GUI shows the history of commands send to the robot (and the results returned form the server) as well as the remote log from the servers (I expect this to come in handy when I start integrating the [...]

First Version of “libemb”

I uploaded a first version of “libemb“. “libemb” is a collection of libraries which try to make things needed in many STM32 (ARM-Cortex-M3) based projects more convinient. It includes helbers for console output, USART usage, as well es drivers for specific hardware. Currently “libemb” contains the following helper libraries: libserial: help on using the USART [...]

Pointers in C

Found a nice tutorial on using pointers in C over at netcom.com.