I am very new to cellular comms for so apologies for my naivety.
I have recently purchased the SARA-AFF-R410M board bundled with a Vodafone sim, but am struggling to get a connection. I’m based in the UK, and am assuming that Vodafone have rolled out NB-IoT but I can’t get any information out of Vodafone to confirm or deny.
So firstly, can anybody tell me whether Vodafone have rolled out NB-IoT across the UK (specifically England) yet?
And if so, then has anybody had any luck getting the board to connect using the default firmware it is shipped with?
The serial output gives me: AT timed out (5 times) AT+CMEE=2 : OK ATE0 : OK +URAT : 8 +CGDCONT : 1,“IP”,“nb.inetd.gdsp”,“0.0.0.0”,0,0,0,0
Then +CGATT: 0 periodically for 5 mins before repeating.
I’m wondering if some default settings are incorrect for the UK, or have changed since release?
All Things Talk Token (att=): ********* //printed on simcard holder
APN (apn=): nb.inetd.gdsp
Force Operator (opr=): 23415
CID (cid=): 1
APN user (apnu=):
APN password (apnp=):
Band (bnd=): 20
Target IP (ip=): 220.127.116.11
Target port (prt=): 8891
Response Timeout (rxto=): 50
This works for me, input the settings above then try AT+CSQ to test the signal strength. If you keep getting 99,99 then you may not have NB-IOT coverage.
Hi, Vodafone are rolling out NB-IoT in the UK, but coverage is mostly in the West of England and is slowly moving eastwards, so it maybe that you do not have coverage yet in your location.
The last coverage map I saw, Huddersfield did not have coverage. However Manchester did. Are you able to travel to Manchester and test there?