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To see all available qualifiers, see our documentation.
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