[OpenTRV-dev] tinyHAN application protocol and mapping to MQTT

[Damon Hart-Davis]

Hi,

While in general I expect the back-channel to be lightly used, and in some cases it may not even be available to all intents and purposes, I certainly would like our sensor platform to be able to support actuators without too much of a hack!

Rgds

Damon


> On 10 Dec 2014, at 13:47, Mike Stirling <EMAIL ADDRESS HIDDEN> wrote:
> 
> Hi All,
> 
> I've been thinking about the proposed TinyHAN binary protocol and how to automatically map it to grown-up IoT protocols such as MQTT. I've committed my initial thoughts to virtual paper here and would be grateful for comments: http://www.mike-stirling.com/redmine/projects/tinyhan/wiki/TinyHAN_application_protocol
> 
> The write access is something that has been bothering me, because MQTT does not actually seem like that good a fit for what is essentially a remote procedure call.  However, the approach I've proposed on the wiki feels reasonable.
> 
> I've got most of what I've described up and running with a couple of sensors and I'm quite pleased with the result so far.
> 
> Mike
> 
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