Monthly Archives: Juli, 2014
Some time ago, I wrote about how to install the amazin Micro Python on the STM32F4-Discovery. While this works very well, one might easily come to the point where the internal flash memory of the STM32 will be not enough. I guess, this is why the Micro Python board comes with an micro SD card […]
Added a setup-script to cross-compile the Linux kenel module for the RC outlets for the Raspbarry Pi. To be able to cross-compile the module, in brief the following needs to be done: Install ARM cross-gcc On Ubuntu: sudo apt-get install gcc-arm-linux-gnueabi make ncurses-dev Get RasPi Kernel E.g. use Kernel from GIT: git clone https://github.com/raspberrypi/linux.git linux-raspberrypi […]
Made a overview of how the over-air protocol looks for the Pollin RC Switches (see previous article for more details). The length of the pulses is a multible of 350us. The wave-forms where captured with an OpenBench logic sniffer.
Some time ago, I wrote about using an EDIMAX Smart Plug with Python. The EDIMAX has build in Wifi and runs its own web server. While this is convenient, it also makes the EDIMAX quiet expensive. Lately I got notice (thanks Eric), about very cheap 434MHz based plugs sold by Pollin for less then 10 […]
At Google I/O this year, Cardboard was presented. Cardboard are DIY 3D goggles made of cardboard, using a smart phone as screen and sensor device. Cardboard seams to be based on OpenDive from Stefan Welker who also published the STL files for 3D printing his goggles on ThingiVerse. And printing them was exactly what I […]
I created a first passive component for my brick-o-lage project: a big button with feedback LED. The button is mode from a big „pilz“ switch which presses a smaller switch inside the case. Very simple but dangerous looking :-). The 3D files could be found on my github account. I tried to make the case […]