Re: [mh] Adding Tasmota HTTP support

Update: some Sonoff Minis showed up this afternoon.  It was a bit fiddly 
to get them updated to Tasmota, but I have that done now. More 
surprisingly, I also successfully controlled them from my new perl 
module on the first attempt.  I don't remember the last time I wrote 
something that worked on the first try!

Unfortunately I have had less luck getting Tasmota to send local control 
messages back to MH.  It always reports a timeout when sending the HTTP 
request, even though I can successfully send the exact same URL from my 
phone on the same WiFi network.  If I take out the port number from the 
URL then the Tasmota device does successfully send the request [to port 
80], but I have an apache server running on port 80 on my MH machine so 
that doesn't exactly work.  I hope I haven't found a bug in the firmware.

I will do some more troubleshooting to see if I can get to the bottom of it.

Jeff

On 2020-12-13 12:45 a.m., Jeff Siddall wrote:
> Thanks!
>
> I decided to take a stab at it, and after a couple of hours have 
> Tasmota_HTTP_Item.pm written.  This one is a more substantial 30 lines 
> of code, plus another 5 lines in read_table_A.pl.
>
> Now I just need some devices to test it with.
>
> Jeff
>
> On 2020-12-12 9:55 p.m., H Plato wrote:
>> Look at my razberry module. This is very similar to how it works. 
>> Sending a http command for control and having a web endpoint for 
>> accepting status changes.
>>
>> Sent from my mobile device.
>>
>>> On Dec 12, 2020, at 7:41 PM, Jeff Siddall via misterhouse-users 
>>> <[email protected]> wrote:
>>>
>>> As a follow-on to the "What’s better than Insteon?" thread, Giles 
>>> put me onto the Tasmota open source firmware that will run on a huge 
>>> number (literally thousands) of smart things on the market. While 
>>> you can talk to those over MQTT, then you also need to setup a 
>>> broker, and that seems awkward in a world where all the smart things 
>>> have web interfaces.
>>>
>>> So that got me thinking about building a "Tasmota_HTTP_Item" in MH.  
>>> There is already support for SETting things in MH using HTTP via the 
>>> lib/http_server.pl code.  Tasmota devices can send updates using 
>>> HTTP, as in this example:
>>>
>>> https://tasmota.github.io/docs/Rules/#two-way-light-switches-without-mqtt 
>>>
>>>
>>> So combining those two would result in a rule for local switch 
>>> control on the Tasmota with a command like:
>>>
>>> WebSend [<mh_ip_address>:8081] 
>>> /SET;none?select_item=Tasmota_Item_Name&select_state=on
>>>
>>> And for remote control, MH would send a command like this when an 
>>> item is set:
>>>
>>> get 'http://<tasmota_item_ip>/cm?cmnd=POWER1 ON'
>>>
>>> The only other thing is that the "set" function for the Tasmota_Item 
>>> would need to check if the item was set_by:
>>>
>>> web [<tasmota_item_ip_address>]
>>>
>>> ...and then not send anything in that case so it doesn't end up in a 
>>> send loop with the Tasmota device.
>>>
>>> Anyone tried anything like that?  If not, I guess it is time to 
>>> order some of these things and start tinkering!
>>>
>>>
>>>
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