Both the signals from the rain meter and the cup anemometer are connected to interrupt pins of the micro-controller. The signal from the rain meter is lightly filtered by C8.
Both the signals from the rain meter and the cup anemometer are connected to interrupt pins of the micro-controller. The signal from the rain meter is lightly filtered by C8. The output of the wind vane is connectd to an analog input of the micro-controller.
The ModBus address can be set by DIP switch J9.
@ -319,7 +320,7 @@ Output coils registers are numbered 1 to 9999 but have data addresses 0x000 to 0
# Prototype
I wanted to locate the weather station at about 100 meters from the house. That meant that interfacing the weather station was not just a matter of connecting a wire to it. And 100 meters is a bit much for a wifi connection either. As I already had experience with LoRa I opted for that. But not LoRaWAN, but LoRa APRS. This is a ham radio network that I often use. I even run my own digipeater. So LoRa APRS it is.
I wanted to locate the weather station at about 100 meters from the house. That meant that interfacing the weather station was not just a matter of connecting a wire to it. And 100 meters is also a bit much for a wifi connection. As I already had experience with LoRa I opted for that. But not LoRaWAN, but LoRa APRS. This is a ham radio network that I often use. I even run my own digipeater. So LoRa APRS it is.
![Block diagram of the prototype](./images/prototype_block_diagram.svg "Block diagram of the prototype")