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ESPHome for Mopeka Pro Check

Warning!

This example code is supplied "as is" with no warranties of any kind, it works on my setup but it des not mean it will work on yours without modifications or at all. This example is meant to point you in the right direction. I take no responsibilities on it's usage. I've tried to document it sufficiently that it is readable and easy to understand.

History

2023-08-12 First commit

About the project

I was tired of running out of gas at the most importune moments, so I looked for a solution and I came across the Mopeka Pro Check. Though expensive, I felt it was worth the convenience to have my LPG tank level in Home Assistant with some automations to tell me that I will need to replace it soon, so I ordered one.

What will you need?

  • A Mopeka Pro Check Sensor, you can pick up one either on Amazon or If you are in South Africa here.
  • I would recommend an ESP32 for the Home Assistant integration as it will convert the Bluetooth Low Energy signal to WiFi and you can put your bottle wherever you have a WiFi signal.

Looking for more information?

The ESPHome page explains a lot.

What will you find here?

The code

The ESPHome integration in ESPHome/mopeka_pro_check.yaml

Home Assistant code

- type: gauge
  name: Hob LPG Capacity
  needle: true
  unit: "%"
  entity: sensor.esphome_mopeka_pro_check_lpg_level
  segments:
    - from: 0
      color: "#800000"
    - from: 10
      color: "#996719"
    - from: 20
      color: "#184B29"

You'll get this:

Version 0.1

The implementation

Option 1

As for the Home Assistant integration, you'll need to be close to you Home Assistant machine with your gas bottle and, assuming you have Bluetooth on your home Assistant machine, you will pick it up immediately in the Integration page, if not click Add Integration type Mopeka and see if it is on your network, if the App works, the HA integration should work too.

If the sensor is out of the BLE range get yourself an ESP32 with Bluetooth and install ESP home on it with the following lines:

esp32_ble_tracker:
  scan_parameters:
  interval: 1100ms
  window: 1100ms
  active: true

bluetooth_proxy:
  active: true

Please note that you should not run the webserver with the Bluetooth Proxy, in my experience it creates an endless reboot.

The native Home Assistant integration has its limitations, so I opted for something a little more complicated.

Option 2

This one is a bit more complicated, the YAML code is in the mopeka_pro_check.yaml, I found the ESPHome instructions a little backwards, you will need to read it from bottom to top, the Setting Up Devices is the first thing you need to do and it's at the bottom of the page.

The code is straight forward but I found that for the South African gas bottles, often marked 11Kg the code below works better than "EUROPE_11KG":

tank_type: custom
custom_distance_full: 26cm
custom_distance_empty: 1cm

Don't ask me why.

Sponsoring

If you like my work and want to support the growth of the project, you can!

Buy Me A Coffee