Allow access to RadioHead packet headers #12
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thanks @jerryneedell - just to check, do our existing examples still work asis or do they need updating? |
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@ladyada the existing rfm69_simpletest.py works as is. No changes necessary. |
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ok thanks - looks good to me! ill merge, do you wanna add more PR's or shall we do a release? |
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That's all I planned for now -- Ok to release as far as I am concerned. |
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aweosme - if you can, please do a release at your convenience :) |
tannewt
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Updating https://github.com/adafruit/Adafruit_CircuitPython_74HC595 to 1.0.1 from 1.0.0: > Merge pull request adafruit/Adafruit_CircuitPython_74HC595#2 from kattni/pypi-setup Updating https://github.com/adafruit/Adafruit_CircuitPython_MPR121 to 2.0.0 from 1.2.1: > Merge pull request adafruit/Adafruit_CircuitPython_MPR121#14 from caternuson/iss12 Updating https://github.com/adafruit/Adafruit_CircuitPython_RFM69 to 1.2.3 from 1.2.2: > Merge pull request adafruit/Adafruit_CircuitPython_RFM69#12 from jerryneedell/jerryn_header Updating https://github.com/adafruit/Adafruit_CircuitPython_BusDevice to 2.2.7 from 2.2.6: > Merge pull request adafruit/Adafruit_CircuitPython_BusDevice#22 from pdp7/master Updating https://github.com/adafruit/Adafruit_CircuitPython_Bundle/circuitpython_library_list.md to NA from NA: > Added the following libraries: Adafruit_CircuitPython_74HC595
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The user may optionally set and receive the 4 byte RadioHead packet header.
I think this mimics the behavior of the Arduino implementation.
The default is to ignore the header as in the past.
On transmit, the user may provide a keyword argument: tx_header with a 4-tuple of bytes.
tx_header = (To,From,ID,Flags)
to set the outgoing header.
On receive, the user can request that the packet header be included at the beginning of the packet via a keyword argument: with_header.
If set to True, the header will be included as the first 4 bytes of the packet and the data payload begins at byte 4.
Also, the user may specify a keyword argument: rx_filter to reject any "non-broadcast" packets not addressed as specified. A "broadcast" message contains 0xff as the To address. Broadcast messages are always received.
If rx_filter is set to a value other than 0xff, then incoming packets with the To field not matching the rx_filter will be ignored unless the To field contains 0xff.
If rx_filter is set to 0xff then all packets are accepted.