RTLAMR: RTL-SDR to read electric/gas/water meters

HA_RTLAMR.yaml

shell_command:
  rtlamr_start: 'python3.6 /home/pi/work/rtlamrmqtt.py'
  kill_rtlamr: 'pkill -f rtlamr'

automation:
  - action:
    - data: {}
      service: shell_command.rtlamr_start
    alias: Start RTLAMR Script
    condition: []
    id: '4367493654362'
    trigger:
    - event: start
      platform: homeassistant

  - action:
    - data:
        payload_template: '{{ states(''sensor.gas_meter'') }}'
        retain: 'true'
        topic: home/gas_prior_day
      service: mqtt.publish
    alias: Post Day's Gas Reading for cumulative calculation
    condition: []
    id: '54745735557534'
    trigger:
    - at: 00:00:01
      platform: time

  - action:
    - data:
        payload_template: '{{0}}'
        retain: 'true'
        topic: home/gas_month_usage
      service: mqtt.publish
    alias: Current Month Gas Reading Zeroing
    condition:
    - before: '23:59:55'
      condition: time
    id: '25752745752725475'
    trigger:
    - platform: template
      value_template: '{{ now().strftime("%d") == "01" }}'

  - action:
    - data:
        payload_template: '{{ states(''sensor.gas_month_usage'') | float + states(''sensor.gas'') | float }}'
        retain: 'true'
        topic: home/gas_month_usage
      service: mqtt.publish
    alias: Cumulative Monthly Gas Usage
    condition: []
    id: '546725745752752'
    trigger:
    - at: '23:59:59'
      platform: time

sensor:	  
  - platform: mqtt
    state_topic: "home/gasmeter"
    name: "Gas Meter"
    qos: 0
    unit_of_measurement: "gal"
    value_template: "{{  value | round(1) }}"

  - platform: mqtt
    state_topic: "home/gas_prior_day"
    name: "Gas Prior Day"
    qos: 0
    unit_of_measurement: "gal"
    value_template: "{{  value | round(1) }}"

  - platform: mqtt
    state_topic: "home/gas_month_usage"
    name: "Gas Month Usage"
    qos: 0
    unit_of_measurement: "gal"
    value_template: "{{  value | round(1) }}"

  - platform: template
    sensors:
      gas:
        value_template: '{%- if not (is_state("sensor.gas_meter","unknown") or is_state("sensor.gas_prior_day","unknown") )-%}  {{ ((states.sensor.gas_meter.state | float) - (states.sensor.gas_prior_day.state | float)) | max (0) | round(1) }} {%- endif -%}' ## ensure calc is no lower than zero!
        friendly_name: "Gas Today"
        unit_of_measurement: "gal"

rtlamr2mqtt.py

import subprocess
import paho.mqtt.client as mqtt
import time
import json

client = mqtt.Client()
client.connect("localhost", 1883, 60)
client.loop_start()

try:
  while True:
      completed = subprocess.run(['/home/pi/go/bin/rtlamr','-filterid=xxxxxxxxx', '-single=true', '-format=json', '-duration=10m'], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
      try:
         data=json.loads(completed.stdout.decode("utf-8"))
      except ValueError:
         print("Error")
      else:
         reading = data['Message']['Consumption']
         client.publish("home/gasmeter",reading,0,True);
         print("Reading:",reading)
except KeyboardInterrupt:
  print("interrupted!")
  client.loop_stop()
  client.disconnect()

Traceback (most recent call last):
File "water.py", line 12, in
completed = subprocess.run(['$HOME/projects/bin/rtlamr -server=127.0.0.1','-filterid=1481976504', '-single=true', '-format=json', '-duration=10m'], stdout=subprocess.PIPE, stderr=subprocess.DEVNULL)
AttributeError: 'module' object has no attribute 'run'

@gbdavidx Use Python 3, Python 2 does not have subprocess.run() ref: https://stackoverflow.com/questions/40590192/getting-an-error-attributeerror-module-object-has-no-attribute-run-while

Cool beans.. A quick tip: if doing rtlamr with an utility meter and you want to be picked up by the energy tracker feature in Home Assistant (and to have a history recorded of energy usage), might wanna add bits like:

    state_class: total_increasing
    device_class: gas

to the sensor. If it's an electric meter the device_class should be energy. Here's a list of all the classes. You can also see which state_class to use. There are a few depending on whether the reported usage is reset periodically or if it's an ever-increasing total.

Cheers!

I need help getting this started: I'm getting this error and timing out.. wget https://github.com/airspy/rtl_tcp/archive/master.zip

--2023-05-15 19:11:05-- https://github.com/airspy/rtl_tcp/archive/master.zip
Resolving github.com (github.com)... 140.82.114.4
Connecting to github.com (github.com)|140.82.114.4|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2023-05-15 19:11:06 ERROR 404: Not Found.

I downloaded the rtlamr, I want to do the instance of rtltcp and then run the code since everything else doesn't work.

I'm using a Mac and can't get your code to work.

@Lenny43 Maybe get in touch with @airspy as that is his/her/their code. I have an add on to make everyone’s life simpler: https://github.com/debsahu/hassio-rtlamr-addon

Please tell me the exact steps to do this project. I did everything in your Youtube video. Plus some AI help when I need help. I still can't get it to work.