nRF51822 + MQTT

RE: nRF51822 + MQTT

jruiz — Fri, 13 Oct 2017 10:40:04 GMT

Hi,

Mongoose library claims to do what you need.

Builtin protocols:

plain TCP, plain UDP, SSL/TLS (over TCP, one-way or two-way)
HTTP client, HTTP server
WebSocket client, WebSocket server
MQTT client, MQTT broker
CoAP client, CoAP server
DNS client, DNS server, async DNS resolver

devzone.nordicsemi.com/.../ www.hackster.io/.../mongoose-embedded-networking-library-on-nrf51-and-nrf52-547b15 github.com/.../mongoose

And looks like it based on IOT softdevice

RE: nRF51822 + MQTT

Hung Bui — Tue, 28 Mar 2017 12:07:24 GMT

I understand your concern, unfortunately currently we have no other option to give.

RE: nRF51822 + MQTT

xeem — Mon, 27 Mar 2017 14:57:15 GMT

The 6lowpan mqtt library is a great first step as an experimental tool! Unfortunately it has quite a few downsides for production devices:

The IoT softdevice firmware is experimental with no defined timeline for release
Bandwidth is capped at 128kbps. Regular softdevice firmware is much, much, faster
The IoT SDK is updated infrequently (last updated late 2015!)
Phones can't currently act as ble 6lowpan gateway due to software limitations; necessitating the use of additional hardware to act as a ble gateway
IoT development efforts seems to be shifting away from the IoT SDK to the Thread SDK. And there are currently no planned MQTT libraries for the Thread SDK

All of these downsides make it pretty difficult to move forward with the IoT MQTT library.

RE: nRF51822 + MQTT

Hung Bui — Mon, 27 Mar 2017 09:19:02 GMT

We have MQTT library here. It was used with 6lowpan on lower layer before getting to BLE. But I guess you can get something out of it ?

RE: nRF51822 + MQTT

neo-xtreme — Fri, 24 Mar 2017 20:09:44 GMT

This is exactly where I am at too. Seems like creating a Forwarder using the MQTT spec is the way. But let me know if you find anything interesting.

RE: nRF51822 + MQTT

xeem — Fri, 24 Mar 2017 20:07:34 GMT

I am also looking into this! A ble to mqtt bridge would be extraordinarily useful. I found a few examples here and here but nothing fully baked.