Enable RPi gateway wth RFM69 #728
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I found warnings (compiler or Doxygen related) in the MySensors core library when building the core library verification sketches. Please rebuild your changes locally with all warnings enabled in the Arduino IDE and make sure it compiles cleanly and resubmit your changes. You do not need to resolve warnings that are unrelated to your change. |
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Duplicate ? #624 |
This patch enables the use of the RFM69W modules directly connected to the Raspberry Pi headers (no arduino gateway needed)
Note that we use software chip-select because we need to query the 1st byte to determine how many bytes to read without de-asserting chip-select, and the hardware chip-select does not support this. I have code to do this reusing the CS0 pin, but it required less change to use a separate pin, so I've started with that.
the configure command I used is:
./configure --my-gateway=mqtt --my-controller-ip-address=127.0.0.1 --my-mqtt-publish-topic-prefix=mysensors-out --my-mqtt-subscribe-topic-prefix=mysensors-in --my-mqtt-client-id=mygateway1 --my-transport=rfm69 --my-is-rfm69hw --my-rfm69-frequency=433 --my-rf69-irq-pin=10 --my-rf69-spi-cs=22 --my-rf69-spi-clock-div=250
This puts the IRQ pin on header-pin 10 and the chip-select on header pin 22 and uses a 1MHz clock (May be 1.6MHz on RPi3 depending on bus frequency)