This sample logic group determines the pollen load for the current day via the Internet. In addition, the pollen load for the next three days is also determined and output.
The data request is triggered via the manual trigger by http request.
The response will be distributed via a mailing list over the four days (today, tomorrow, the day after tomorrow and the day after the day after tomorrow).
The delayers are there to reduce the telegram load.
A separate text processor is used for each day, which determines the values via regular expressions and outputs them to the outputs.
The regular expressions for mugwort and grasses are different to avoid encoding problems.

The outputs of the logic group are integer values. The values are defined as follows:
- 0 No load
- 1 Weak load
- 2 Medium load
- 3 Heavy load

The value display can be used for visualisation.

Source: https://allergie.hexal.de/pollenflug/vorhersage/