With the nRF9151 A1A feather (v1) (=> you must ensure the A1A) and the prealpha mfw from Nordic, I was able today to connect my first feather with my coaps-client via Skylo to cloudcoap.io :-).
@jaredwolff
That’s really amazing, that you have already a nRF9151 A1A feather in stock!
293 [s], nRF9151-feather v0.14.100+0, 0*3, 1*0, 2*1, 3*0, failures 0
cmd
5046 mV 100% (LiPo) external usb 0x01
RETRANS: 0, RTT: 26301 ms
Net: NTN,Band 256,PLMN 90198,Cell 2704027,EARFCN 229364
CE: RSRP: -122 dBm, SNR: 6 dB
30 C
I 93.347 : CoAP request prepared, token 0xe06b5d21, 275 bytes
I 93.347 : send 275 bytes.
I 93.349 : RAI sockopt 3/one response, success
I 93.383 : send_to_peer 311
I 93.383 : response timeout 31 s
I 93.384 : LTE modem wakes up
%XMODEMSLEEP: 1,0
I 93.384 : modem state: sleeping off
I 96.384 : CoAP request waiting for lte connection, 3 s
I 97.717 : LTE modem search done.
%MDMEV: SEARCH STATUS 2
%MDMEV: PRACH CE-LEVEL 0
I 00.385 : CoAP request waiting for lte connection, 7 s
I 03.242 : RRC mode: Connected
+CSCON: 1
I 03.243 : CEINFO: 0,1,R,8,16,-122,6
I 03.244 : XSNRSQ: 31,146,0
I 03.244 : modem state: connect on
I 03.386 : State: connected to send, psm active
I 03.386 : 9897 ms: connected => sent
I 03.386 : Req-State lte connected change from 1 (SEND) to 2 (RECEIVE)
I 04.386 : State: connected to send, psm active
I 04.386 : CoAP request wait 1 of 31 s
I 05.386 : State: connected to send, psm active
I 05.387 : CoAP request wait 2 of 31 s
I 06.387 : State: connected to send, psm active
I 06.387 : CoAP request wait 3 of 31 s
I 07.387 : State: connected to send, psm active
I 07.387 : CoAP request wait 4 of 31 s
I 08.387 : State: connected to send, psm active
I 08.387 : CoAP request wait 5 of 31 s
I 09.388 : State: connected to send, psm active
I 09.388 : CoAP request wait 6 of 31 s
I 10.388 : State: connected to send, psm active
I 10.388 : CoAP request wait 7 of 31 s
I 11.388 : State: connected to send, psm active
I 11.388 : CoAP request wait 8 of 31 s
I 12.389 : State: connected to send, psm active
I 12.389 : CoAP request wait 9 of 31 s
I 12.758 : recvfrom_peer ...
I 12.758 : received_from_peer 48 bytes
I 12.758 : received message (48 bytes), starting with 'application_data', epoch 1
I 12.758 : got 'application_data' epoch 1 sequence 6 (48 bytes)
I 12.758 : ** application data:
I 12.758 : CoAP ACK response received. code: 2.04, token 0xe06b5d21, 0 bytes
I 12.758 : Recv CoAP TIME option 1758644684131 19977644563 (6 bytes)
I 12.758 : Recv CoAP read response code 2.03
I 12.759 : 9897ms/19411ms: success
I 12.759 : 2025-09-23T16:24:44Z
I 12.759 : Req-State next request change from 2 (RECEIVE) to 5 (WAIT_SUSPEND)
I 12.760 : RAI sockopt 1/now, success
I 14.403 : RRC mode: Idle after 11161 ms (1645 ms inactivity)
+CSCON: 0
I 14.403 : modem state: connect off
I 44.417 : LTE modem sleeps after 30014 ms idle (PSM)
%XMODEMSLEEP: 1,86369987
I 44.417 : modem state: sleeping on
I 44.766 : Req-State lte sleeping change from 5 (WAIT_SUSPEND) to 0 (NONE)
I 44.766 : CoAP request suspend after 41 s
Very very cool!
