rf modules for bluepill
Posted: Sun Jul 19, 2020 8:08 am
Hi,
Can anyone suggest the best rf module to use with a bluepill?
My application is data heavy, I need to send an 8kbyte length of data every 5 minutes from 30 sensors. Therefore, I have a maximum of 8 seconds to send 8kbytes but that leaves no room for errors. Yes, I know 300/30 is 10 seconds but the master first requests data and that takes the slave 1.2 seconds to collect before sending. Currently I do this using PoE and the data transfer rate is very fast.
I also need about 2.5 km range. Are there any rf modules that can do this? We used to have WISP internet with 20mbps and our provider was about 10km away so I know there are technologies available but the frequencies may require a licence and the cost prohibitive. I’m hoping there’s a sub gigahertz rf module that will do the trick.
Regards, Stav.
Can anyone suggest the best rf module to use with a bluepill?
My application is data heavy, I need to send an 8kbyte length of data every 5 minutes from 30 sensors. Therefore, I have a maximum of 8 seconds to send 8kbytes but that leaves no room for errors. Yes, I know 300/30 is 10 seconds but the master first requests data and that takes the slave 1.2 seconds to collect before sending. Currently I do this using PoE and the data transfer rate is very fast.
I also need about 2.5 km range. Are there any rf modules that can do this? We used to have WISP internet with 20mbps and our provider was about 10km away so I know there are technologies available but the frequencies may require a licence and the cost prohibitive. I’m hoping there’s a sub gigahertz rf module that will do the trick.
Regards, Stav.