Links Zufallsfunde - Man-fred/culfw-esp8266 GitHub Wiki

Wiki pages around the FHZ 1000/1300 PC module: http://fhz4linux.info/tiki-index.php

The Serial Peripheral Interface (SPI) http://avrbeginners.net/architecture/spi/spi.html

A attempt to write down the protocol of the eQ3 / ELV MAX! Cube https://github.com/Bouni/max-cube-protocol