Automatic greenhouse watering

Hi
I’ve been dealing with lorawan for a few days.
I created a running gateway via a Rasberry.
With a CubeCell and GPS module I also managed to send and evaluate the GPS data.

Now to my question.
I would like to implement a greenhouse irrigation using a Lora Radio Node 1.0.
The node should act more or less as a sensor.
I would like to connect a BMP280 sensor and 2 soil moisture sensors. These should then send the data to the Lora network.
If the soil moisture falls below a certain value, a 6v pump should be switched on and the water from the rain barrel should be used for irrigation.
Maybe you could also add a flow sensor.

I have now started using an Arduino sketch to send the data.
Unfortunately, no payload data is transferred to the device.

I would be happy if someone can help me or has a similar project.

Greetings Andre