OTTA implementation about dragino

[Technickfreak]

I've now tested it with the loop
and now works.

my script was probably too impatient beforehand.

many thanks for your help.

[pjb304]

Do you mean OTAA (over the air activation) which is already implemented in the code base? Or something else, in which case feel free to implement and submit a pull request.

[ossonts]

what are you needing? got an example

[BNNorman]

I find this conversation strange. As pjb304 said, OTAA is already supported and that is what I am using. You simply need to edit the lines at the end of the dragino.ini file:-

##Valid auth modes are ABP or OTAA
##All values are hex arrays eg devaddr = 0x01, 0x02, 0x03, 0x04
#auth_mode = "abp"
#devaddr = 
#nwskey = 
#appskey =

auth_mode = "otaa"

deveui =[insert your own]
appeui =[insert your own]
appkey =[insert your own]

This works for me.

[Technickfreak]

yes I mean OTAA, I copied it incorrectly from the script.

dragino/dragino/dragino.py

Lines 36 to 37 in 55b56af

	AUTH_ABP = "ABP"
	AUTH_OTTA = "OTTA"

Die send_bytes-Methode ist nur für ABP optimiert und ich habe keine andere für OTAA gefunden.

dragino/dragino/dragino.py

Lines 195 to 201 in 55b56af

	def send_bytes(self, message):
	"""
	Send a list of bytes over the LoRaWAN channel
	"""
	attempt = 0
	if self.network_key is None or self.apps_key is None: # either using ABP / join has run
	raise DraginoError("No network and/or apps key")

[Technickfreak]

##Valid auth modes are ABP or OTAA
##All values are hex arrays eg devaddr = 0x01, 0x02, 0x03, 0x04
#auth_mode = "abp"
#devaddr =
#nwskey =
#appskey =

auth_mode = "otaa"

deveui =[insert your own]
appeui =[insert your own]
appkey =[insert your own]

I did that.

dragino/dragino/dragino.py

Lines 200 to 201 in 55b56af

	if self.network_key is None or self.apps_key is None: # either using ABP / join has run
	raise DraginoError("No network and/or apps key")

only if appskey is empty then sending is aborted at the point. (the appskey from abp)

[BNNorman]

Looks like your JOIN_REQUEST may have failed. Any chance of us seeing your log file? Be aware though, in DEBUG mode the logfile will include your devui, appeui and appkey - so edit those lines before posting.

In my app I use a loop to wait for a join before trying to send anything.

DRAGINO = Dragino(DRAGINO_INI,logging_level=logging.DEBUG)
logger.info("Waiting for JOIN to TTN")
DRAGINO.join()
while not DRAGINO.registered():
    pass
logger.info("JOINED to TTN")

Have you made any changes to the dragino.py code? The standard code works fine if you don't need downlinks. (I modified rx_done() to pass those on to my code).

[ossonts]

@BNNorman yes same -- this is key

while not DRAGINO.registered():
    pass

Also: you may want to slow the loop down a bit :-)

[RaghavRao]

Hey, dumb question, but do I copy all the values as big-endian? I remember raspi-lmic needed some little-endian

[BNNorman]

Just copy paste from ttn is all i did.

[pjb304]

I just copy and paste from ttn console well - having changed the mode to output the correct array format