Gas meter and the result

ESPHome
1

Hello. Since Months (!) i try to read my Gas meter. I got a result, so the ESP8266 works. But what I get just doesn’t make sense.

My Configuration:

esphome:
  name: "esp8266-gas-keller"

esp8266:
  board: nodemcuv2

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "###"

ota:
  password: "###"

# Example configuration entry
wifi:
  ssid: !secret privatewifi_ssid
  password: !secret privatewifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Gas-Fallback Hotspot"
    password: "###"


captive_portal:


globals:
  - id: total_pulses
    type: int
    restore_value: false
    initial_value: '0' # mit diesem Wert startet der Gaszählerstand

  - id: imp_ratio
    type: float
    restore_value: false
    initial_value: '0.01'


binary_sensor:
  - platform: gpio
    id: internal_pulse_counter
    pin:
      number: D1
      mode: INPUT_PULLUP
    name: "Live-Impuls"
    filters:
      - delayed_on: 10ms
    on_press:
      then:
        - lambda: id(total_pulses) += 1;

  - platform: status
    name: "Status Gassensor"

sensor: 
  - platform: template
    name: "Gasvebrauch Puls"
    device_class: gas
    unit_of_measurement: "m³"
    state_class: "total_increasing"
    icon: "mdi:fire"
    accuracy_decimals: 2
    lambda: |-
      return id(total_pulses) * id(imp_ratio);
      ESP_LOGD("Gaszähler Impulse Tag", "Pulse bisher %d", id(total_pulses));

  - platform: template
    name: "Gasverbrauch in kWh"
    device_class: gas
    unit_of_measurement: "kWh"
    state_class: "total_increasing"
    icon: "mdi:fire"
    accuracy_decimals: 2
    lambda: |-
      return id(total_pulses) * id(imp_ratio) * 10;
      ESP_LOGD("Gaszähler kWh Tag", "Pulse bisher %d", id(total_pulses));

The result is “0”. Without exception! And when I look at the source code, I just don’t understand why. Because i can´t finde any error. Whould you please help me? Thanks!

2

What’s the output of your ESP_LOGD’s (you should put them before the return statements)?
Are those the mysterious “result” you speak about?

1 Like
3

Cool, thank you! :slight_smile: I learned something. I put the ESP_LOGD in front of the return statement and now it is displayed.

However, the problem still prevails. I have attached a screenshot. The counter just doesn’t increase. Although there is a reaction to the relay responding to the counter’s magnet, nothing is counted. And when I look at the code, I can’t find any error. And if you look at the tutorials online, they only show this solution.

Although I don’t understand what you’re supposed to multiply by 0.01 anyway… If I specify a fixed value, i.e. the counter reading, and then calculate +0.01 for each revolution, then it must be correct… But that is another question.

Bildschirmfoto 2023-12-31 um 15.36.44
Bildschirmfoto 2023-12-31 um 15.36.441672×480 110 KB

4

What kind of physical device are you using to register the pulses? And are you sure the on_press in your binary_sensor is activated? You can also add a LOG_D message to this part of your yaml to see if it is triggered.

Why not using Pulse Meter Sensor — ESPHome, I think this component does everything you want to achieve in your code.

5

I’ll take a look at this tomorrow, thanks for your help! But now it’s almost 8 p.m. (in Germany) and New Year’s Eve! So have a GREAT evening (later) and a great new year! :slight_smile:

6

I use a Reed-Contact on D1. Something like this. Well… As you can see in my Screenshot, the sensor seems to work. I become a feedback. The Value is “0”, but there ist any answer. Or am i wrong?

7

In the log screenshot, I only see the (automatic) update from your template sensors, not the on/off switching of your binary sensor, so I assume there is no increment of pulses and the value stays zero. Did you test your setup before you used in on the gasmeter?