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app/backend/app/flow/nodes_example/humidity_sensor.py
T
Melvin Strobl 8be7f9770e Vendor backend and frontend into the monorepo
The submodule collapse was only half applied: .gitmodules was deleted but
backend/ and frontend/ were still recorded as gitlinks, so none of their
files were tracked. Replace the gitlinks with the real trees.

Also untrack .env (it carried placeholder secrets) in favour of a tracked
.env.example, drop the committed __pycache__, and narrow the blanket *.png
ignore that would have swallowed design assets.
2026-08-09 15:14:54 +02:00

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Python

"""
Example trigger node: Humidity Sensor
Another trigger node that simulates a humidity sensor.
"""
from nodes import Node
from util import Message
def create_node(params: dict) -> Node:
"""Create the humidity sensor node."""
def read_humidity(params, **kwargs):
"""Simulate reading humidity from a sensor."""
import random
humidity = 50.0 + random.gauss(0, 10) # 50% ± 10%
humidity = max(0, min(100, humidity)) # Clamp to [0, 100]
print(f"[humidity_sensor] Read humidity: {humidity:.1f}%")
return {"humidity": humidity}
return Node(
f=read_humidity,
requires=[],
provides=[Message(name="humidity", dtype=float)],
params=params,
name="humidity_sensor",
)