Hi,
I am in the planning stages of a LoRa project to read soil moisture and basic environmental variables on a farm.
From what I understand, I can only use one sensor device with the 1-channel gateway (?).
But would I then also be able to use multiple sensors with the 1-channel gateway if I used Real Time Clocks (RTC) on the multiple sensor transmit boards each sending at different times, to ensure there were no transmission collisions?
Or would something else be a better option?
Thanks.
I would imagine it kinda depends on the sensors you’re using and what are the data sizes. LoRaWAN packets are 64 bytes (ideally keep data to 51 bytes) so if the types were small enough you could send several values in one packet transmission. If enough room is left you could leave a special character in the transmission that you can parse in the ‘receiving’ station to keep looking for more data in the next packet before ending the data collection cycle. Take that data and update whatever you need with it.
Alternatively, you could use your suggestion too but I’m not fully certain how to implement it.
Hope this helps inspire some ideas. 