RadonEye RD200

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As of today I’m using a ESP32 to avoid the “beep” I had when using the RadonEye with the SmartPhone app. By connecting the device via Bluetooth the beep isn’t there anymore and I get nice statistics within HomeAssistant how my Radon exposure is. The ESP32 acts as a Bluetooth proxy via WLAN. This is needed, because my home assistant server is too far away from the RadonEye device, they don’t match via Bluetooth because there are too much walls inbetween.

My question to the community is:
Is there a possibility, to get long-time graphs for the Radon values? I suppose, “Grafana” would be a nice solution for this. But how can I integrate Grafana so that the captures of RadonEye can be used?

esphome:
  name: esp2

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

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

ota:
  password: "12312312371647814387152471812"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp2 Fallback Hotspot"
    password: "4dBynjKSBA8H"

captive_portal:

esp32_ble_tracker:

ble_client:
 - mac_address: eb:50:32:xx:xx:xx
    id: radon_eye_ble_id

sensor:
  - platform: radon_eye_rd200
    ble_client_id: radon_eye_ble_id
    update_interval: 5min
    radon:
      name: "Radon"
      accuracy_decimals: 2
    radon_long_term:
      name: "Radon Long Term"
      accuracy_decimals: 2
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