Hauke’s Projects

Legal EPG Scraper for ARD TV Stations to Use With tvheadend External XMLTV Grabber

I wrote a Python EPG scraper for the EPG data of the German TV stations broadcast by ARD. It is legal for private use. Here I share the code and my thoughts behind it.

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Interfacing EasyMeter Q3M via Info-Interface

The installation of my fuel cell heating required a bi-directional power meter. Bonn Netz, my local power network provider, uses meters of type EasyMeter Q3M which have two infrared interfaces: A bidirectional D0 interface, and a read-only info interface. I use the info interface (INFO-DSS) to read out power consumption and production of the three phases. For this, I built an optical interface, a 3D printed housing for it, and use the UART of a Raspberry Pi with python to get the values.

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Motion Sensor PoC: BNO055 and Raspberry Pi Subtleties

The BNO055 is a capable IMU that has on-chip sensor fusion and filtering. Interfacing can be done using I²C and UART. When used with the Raspberry via I²C, you get erroneous measurements because of the I²C clock stretching bug of the Raspberry. Using the UART, results are correct.

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