I plan to measure (e.g. every hour) the temperature and humidity in my greenhouse, which is located approx. 1,5km from my house (located in Lower-Austria).
First idea was to establish a local LoRa connection based on 433Mhz infrastructure.
Then I read more and more about TTN and I’m very interesting in. But it works only on 868Mhz, if I’m not mistaken.
I have installed a home-automatic system “Homematic IP” (HM-IP) which also operates on this band:
868,0 – 868,5; 869,4 – 869,65; duty cycle <1%/y10% pro h
E.g. my HM-IP weather station is placed on the roof and in future also the LoRa antenna…
The next gateway seems to be too far away, so I plan to have my own gateway, preferable connected to TTN.
Now my question to the specialists: Are there any experiences about interferences/problems regarding radio-frequencies between such systems?
Hallo Peter,
I have the same situation. My Homematic- system works on 868MHz, the Homematic-Central is on the second floor. On the first floor is a gateway for 868MHz temperature-sensors (XS1) and wireless switches. The antenna of the gateway (EU868) is on the roof. All systems coexist without any problems.
Hello Wolfgang,
thank you very much for the prompt reply.
Sounds good, so the next project phase (learn more about TTN and necessary hardware) can start!
LG aus NÖ
Peter
For a distance of 1.5km I would recommend an outdoor antenna for the gateway with free “sight” to the node. An antenna with 2 to 3 dBi gain is sufficient. The node should also have an appropriate antenna.
Install a gateway, install your nodes and have fun!