[Feature Request] MQTT

[fakethinkpad85]

Noticed the description mentioned upcoming MQTT support and just wanted to let it be known that it would be a welcome feature. Dont run your firmware at the moment (or own a Dongle) but if it would support MQTT directly to Home Assistant i would really appreciate that.

Seems this is the only hope or apprcoach that would support having the PowerTags be paired to HA at the moment, been looking for almost a year for a solution to this.

[jlama]

I can look into this if you can provide what kind of MQTT message format HA expects.

[jonassoderback]

it is possible to manage all types of mqtt messages in HA by manual configuration or by using eg node red . but if you want values sent via mqtt to enter fully automatically in HA, it is required that the mqtt messages are sent in a specific way.

[Seekersdk]

Im no programmer, but after some inspirtation from Ocara and help Morten Vinding, and a long discussion with ChatGPT, I now have a powertaged2mqtt HA edition. It will auto discover and you should be able to find the powertag under entities. Might need a routined programmers touch, but it works.

Compile it, add it to your powertagd folder, and run it with (change the IP, user and password):
./powertagd -d /dev/ttyACM0 | ./powertag2mqtt -broker tcp://10.0.2.11:1883 -user YOURUSER-password YOURPASSWORD

Credit:
https://github.com/octera/energy-center/tree/main/powertag?fbclid=IwAR2A0RXt6b_I2pR4gDLSSGt0RxWB3d7syT4UOet9jsvkbNWSY6xvOd6Y6dU
https://github.com/MortenVinding/energy-center/tree/main/powertag

powertag_HA.zip

[Seekersdk]

and just to finish it off, so you can put the data into the energy dashboard:

sensor:

• platform: integration
  source: sensor.powertag_POWERTAGID_total_power_active
  name: Total Energy Consumption_XXX
  unit_prefix: k
  round: 2

Eg.:

sensor:

• platform: integration
  source: sensor.powertag_0xe202aa34_total_power_active
  name: Total Energy Consumption_VP_Ude
  unit_prefix: k
  round: 2

Thanks to Jlama for the great work with the dongle software :) Much appriciated.
Next step would be to make an addon for HA, and run the powertagd and powertag2mqtt inside a docker there.

[SeanHood]

Hey folks, I've been working on adding MQTT (and HA's MQTT Discovery) support to this project. It's not in the shape for a PR yet but I've been running it reasonably reliably for a couple weeks now.

master...SeanHood:powertagd:master

[jonassoderback]

It would be very nice if you could implement support for MQTT communication. I've managed to get your application running in my rpi4 and get values from the powertag sensors, but I can't manage to implement a function to send the data out to external mqtt broker / Home Assistant. It would be greatly appreciated if you could find time to finish MQTT support.

[jonassoderback]

Hey folks, I've been working on adding MQTT (and HA's MQTT Discovery) support to this project. It's not in the shape for a PR yet but I've been running it reasonably reliably for a couple weeks now.

master...SeanHood:powertagd:master

SeanHood:
I get this error when I try to install your modified version of jlama/powertagd. Any idea what is wrong or what I am doing wrong?

pi@pitouch:/build$ git clone https://github.com/SeanHood/powertagd
Cloning into 'powertagd'...
remote: Enumerating objects: 200, done.
remote: Counting objects: 100% (200/200), done.
remote: Compressing objects: 100% (123/123), done.
remote: Total 200 (delta 108), reused 167 (delta 76), pack-reused 0
Receiving objects: 100% (200/200), 6.05 MiB | 5.71 MiB/s, done.
Resolving deltas: 100% (108/108), done.
pi@pitouch:/build$ cd /build/powertagd/src && make
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o ash.o ash.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o crc-ccitt.o crc-ccitt.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o ezsp.o ezsp.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o ezsp_types.o ezsp_types.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o gp.o gp.c
gp.c: In function ‘gp_handle_commissioning_frame’:
gp.c:335:11: warning: variable ‘gpd_key_mic’ set but not used [-Wunused-but-set-variable]
335 | uint32_t gpd_key_mic = 0;
| ^~~~~~~~~~~
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o log.o log.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o serial.o serial.c
cc -g -O1 -fno-omit-frame-pointer -Wall -Wno-unused-function -DENABLE_MQTT -c -o powertag.o powertag.c
make: *** No rule to make target 'cJSON.o', needed by 'powertagd'. Stop.
pi@pitouch:/build/powertagd/src$