I don't contrubiute at this level, but I think I understand the issue. I
searched in PRs for "modem driver" and found work on other cellular
modems (#10086) as well as AT commands and PPP (#5470). I don't see
anything ready to use, and don't know how much work would be required to
adapt for your hardware.
Another option is if Telit has some proprietary driver you can reuse
that provides a transport layer interface. In that case you can
implement the sock interface for it. I am working on something similar
in #10579.
If anyone else has experience or suggestions, please jump in.
On 4/14/19 9:27 AM, Trevor wrote:
Hi Ken,
Yes, I did look at that. In my case I have no network controller -
only the on board GSM modem. The example uses 6LoWPAN(?) presumably
pushing packets to a 6LoWPAN/Ethernet gateway. What would I need to do
to push MQTT packets directly through the modem to a broker somewhere?
On 14/04/2019 14:23, Ken Bannister wrote:
Hi Trevor,
Have you looked at the asymcute_mqttsn example in the repository? I
have not used it, but 'main.c' in the example includes a UDP
endpoint. You also might want to review the PR used to merge it in
for any additional discussion.
Ken
On 4/14/19 8:13 AM, Trevor wrote:
I have a custom board, based loosely on a STK3700 (EFM32GG), that
has a Telit HE910 modem on board. I need to buffer up remote data
from a serial port connected sensor and periodically send that to a
FTP server.
What I'd /like/ to do, instead of just simply using AT FTP commands
to send the data to a server, is to use this project as an excuse to
gain some experience with IOT protocols and processes. Would it be
possible to use RIOT for this with MQTT-SN? So, publish the serial
data (via a Mosquitto broker) to a subscriber on a local server
using the HE910 modem as the transport mechanism. The subscriber
could then do something more intelligent than simply store the data
to a FTP server. If possible to use riot, what would I need to do to
make this work?
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