This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server. Included TPB23 NB-IoT module which is can use LGU+ in Korea.

This example is showing how to use the NB-IoT(SECOM TPB23 module) of LGU plus network in Korea. The NB-IoT module' seller provided a document on how to start based on Mbed OS 5.11. (Created by CodeZoo) This guide has been supported to the latest os version which included 5.12 ~ 5.15.

  • if you need specific version of Mbed OS, please revision of TPB23_Driver and check it out.
  • Pelion ready example code is here!

Requirement

462 320 320

320

Tested with

1. Import the application into your desktop

mbed import http://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-TPB23/

cd mbed-os-example-cellular-TPB23

2. Compile and program

mbed compile -t <toolchain> -m <TARGET_BOARD>

(supported toolchains : GCC_ARM / ARM / IAR)

3. Download binary to a target board

4. Result

mbed-os-example-cellular


Built: Aug  7 2019, 06:10:47


[MAIN], plmn: NULL
Establishing connection
[00000001ms][INFO][CELL]: New CellularContext  (20000a08)
[00000002ms][INFO][CELL]: CellularContext plmn NULL
[00000003ms][INFO][CELL]: CellularContext connect
[00000036ms][INFO][CELL]: RSSI -69 dBm
[00000036ms][INFO][CELL]: Start connecting (timeout 1 s)
[00000087ms][INFO][CELL]: RSSI -69 dBm
[00000116ms][INFO][CELL]: Modem ready
[00000146ms][INFO][CELL]: RSSI -69 dBm
[00000146ms][INFO][CELL]: Setup SIM (timeout 1 s)
[00001233ms][INFO][CELL]: Looked up APN internet
[00001362ms][ERR ][CELL]: AT error code 50
[00001362ms][WARN][CELL]: Packet domain event reporting set failed!
[00001393ms][INFO][CELL]: RSSI -65 dBm
[00001393ms][INFO][CELL]: Network registration (timeout 180 s)
[00001443ms][INFO][CELL]: Registering network => Attaching network
[00001473ms][INFO][CELL]: RSSI -65 dBm
[00001473ms][INFO][CELL]: Attaching network (timeout 60 s)
[00001601ms][INFO][CELL]: Found PDP context 1
[00001649ms][INFO][CELL]: Activate PDP context 1


Connection Established.
[00001671ms][INFO][CELL]: Socket 0 open
[00001707ms][INFO][CELL]: Socket 1 open
[00001748ms][INFO][CELL]: Socket create id: 1
[00001883ms][INFO][CELL]: Socket 1 sent 43 bytes to 8.8.8.8 port 53
[00004311ms][INFO][CELL]: Socket 1 recv 59 bytes from 8.8.8.8 port 53
[00004331ms][INFO][CELL]: Close socket: 1 error: 0
[00004331ms][INFO][CELL]: Socket 1 closed
[00004373ms][INFO][CELL]: Socket create id: 1
TCP: connected with echo.mbedcloudtesting.com server
[00004448ms][INFO][CELL]: Socket 0 sent 4 bytes to 52.215.34.155 port 7
TCP: Sent 4 Bytes to echo.mbedcloudtesting.com
[00007560ms][INFO][CELL]: Socket 0 recv 4 bytes
[00007580ms][INFO][CELL]: Close socket: 1 error: 0
[00007580ms][INFO][CELL]: Socket 0 closed
Received from echo server 4 Bytes
[00007581ms][INFO][CELL]: CellularContext disconnect()
[00007630ms][INFO][CELL]: cb: CellularContext disconnected


Success. Exiting

Revisions of mbed-os.lib

Revision Date Message Actions
47:006469f922f6 2020-02-10 Update latest OS version 5.15 File  Diff  Annotate
44:db20523a0099 2019-08-01 Merge branch 'mbed-os-5.13' File  Diff  Annotate
38:84d8baae4f0b 2019-04-30 Merge branch 'mbed-os-5.12' File  Diff  Annotate
36:6294a71c9e9e 2019-04-11 Merge pull request #131 from ARMmbed/release-candidate File  Diff  Annotate
35:125ae7126e4f 2019-02-26 Merge pull request #122 from adbridge/master File  Diff  Annotate
33:e36957d5faa1 2019-02-13 Merge pull request #121 from adbridge/master File  Diff  Annotate
32:538bf10dce10 2019-01-17 Merge pull request #116 from cmonr/master File  Diff  Annotate
31:fbb094e89746 2019-01-07 Merge pull request #114 from ARMmbed/mbed-os-update File  Diff  Annotate
28:232da3ce8a88 2018-11-23 Merge pull request #110 from AriParkkila/master File  Diff  Annotate
25:c891a7063581 2018-11-19 Merge pull request #108 from cmonr/master File  Diff  Annotate
24:6195c39abe0e 2018-11-06 Merge pull request #106 from adbridge/master File  Diff  Annotate
23:2dc562f68d4a 2018-10-22 Merge pull request #105 from cmonr/master File  Diff  Annotate
22:cf737b827270 2018-10-09 Merge pull request #102 from cmonr/master File  Diff  Annotate
20:99e89c0a8f44 2018-09-14 Merge branch 'adbridge-master' File  Diff  Annotate
18:5cf3e9bf6c08 2018-08-29 Merge pull request #96 from 0xc0170/master File  Diff  Annotate
17:25a08e26e894 2018-08-16 Merge pull request #95 from cmonr/master File  Diff  Annotate
15:e3541a4bca76 2018-07-19 Merge pull request #92 from cmonr/master File  Diff  Annotate
14:f7562c198fd8 2018-07-02 Merge pull request #90 from adbridge/master File  Diff  Annotate
12:393c693226f4 2018-06-20 Merge pull request #88 from adbridge/master File  Diff  Annotate
11:23ea0907186e 2018-06-18 Merge pull request #85 from AriParkkila/merge-mbed-os-5.9.0 File  Diff  Annotate
10:fdcc1da8a6d4 2018-06-06 Merge pull request #82 from adbridge/master File  Diff  Annotate
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3:3e4aaf05be68 2018-03-16 Merge pull request #58 from cmonr/master File  Diff  Annotate
0:4611f6cf2413 2018-03-08 Initial commit. File  Diff  Annotate