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

Changes

RevisionDateWhoCommit message
47:006469f922f6 2020-02-10 Daniel_Lee Update latest OS version 5.15 default tip
46:387c2d922a4a 2019-08-08 Daniel_Lee Disable unsupported properties
45:63eba30af193 2019-08-07 Daniel_Lee Update for Mbed OS 5.12.x; This code was tested on Mbed OS 5.12.2, please check code revision!
44:db20523a0099 2019-08-01 mbed_official Merge branch 'mbed-os-5.13'
43:fef5b8b23c60 2019-07-23 mbed_official NRF52840 to Jenkinsfile (#148)
42:cab443dff75e 2019-05-29 mbed_official Merge pull request #143 from statropy/statropy-patch-1
41:1f13c9a6ee23 2019-05-16 mbed_official Merge pull request #138 from ARMmbed/1570-smoke-test
40:c46ee5b71843 2019-05-06 mbed_official Merge pull request #135 from mirelachirica/nonip_socket_support
39:e57f130d65bd 2019-04-30 mbed_official Merge pull request #136 from ARMmbed/https_raas_connection
38:84d8baae4f0b 2019-04-30 mbed_official Merge branch 'mbed-os-5.12'
37:6482227bfa51 2019-04-29 mbed_official Merge pull request #133 from 0xc0170/fix_license
36:6294a71c9e9e 2019-04-11 mbed_official Merge pull request #131 from ARMmbed/release-candidate
35:125ae7126e4f 2019-02-26 mbed_official Merge pull request #122 from adbridge/master
34:6f85d44597ac 2019-02-15 mbed_official Merge pull request #117 from AnotherButler/patch-1
33:e36957d5faa1 2019-02-13 mbed_official Merge pull request #121 from adbridge/master
32:538bf10dce10 2019-01-17 mbed_official Merge pull request #116 from cmonr/master
31:fbb094e89746 2019-01-07 mbed_official Merge pull request #114 from ARMmbed/mbed-os-update
30:b528cee9bf09 2019-01-07 mbed_official Merge pull request #115 from ARMmbed/update-c027-raas
29:f1f568035f90 2018-11-23 mbed_official Updated json configuration instructions in READ.me.
28:232da3ce8a88 2018-11-23 mbed_official Merge pull request #110 from AriParkkila/master
27:97054be1a741 2018-11-22 mbed_official Changed to use NSAPI default values for pin, apn, plmn and credentials.
26:348eec457e58 2018-11-20 mbed_official Merge pull request #109 from ARMmbed/minor_fixes
25:c891a7063581 2018-11-19 mbed_official Merge pull request #108 from cmonr/master
24:6195c39abe0e 2018-11-06 mbed_official Merge pull request #106 from adbridge/master
23:2dc562f68d4a 2018-10-22 mbed_official Merge pull request #105 from cmonr/master
22:cf737b827270 2018-10-09 mbed_official Merge pull request #102 from cmonr/master
21:e356e039f917 2018-09-27 mbed_official Merge pull request #101 from ARMmbed/fix_tcpsocket_open_trace
20:99e89c0a8f44 2018-09-14 mbed_official Merge branch 'adbridge-master'
19:2cb9398aaf16 2018-09-12 mbed_official Merge pull request #99 from bridadan/sim_pin_hint
18:5cf3e9bf6c08 2018-08-29 mbed_official Merge pull request #96 from 0xc0170/master
17:25a08e26e894 2018-08-16 mbed_official Merge pull request #95 from cmonr/master
16:bf6ed28b4d08 2018-08-08 mbed_official Merge pull request #94 from ARMmbed/update_readme_boardsupports
15:e3541a4bca76 2018-07-19 mbed_official Merge pull request #92 from cmonr/master
14:f7562c198fd8 2018-07-02 mbed_official Merge pull request #90 from adbridge/master
13:4bea5334b419 2018-06-21 mbed_official Merge pull request #89 from ARMmbed/iface_null_in_dot_thread
12:393c693226f4 2018-06-20 mbed_official Merge pull request #88 from adbridge/master
11:23ea0907186e 2018-06-18 mbed_official Merge pull request #85 from AriParkkila/merge-mbed-os-5.9.0
10:fdcc1da8a6d4 2018-06-06 mbed_official Merge pull request #82 from adbridge/master
9:35a1fad017ca 2018-06-04 mbed_official Merge pull request #80 from ARMmbed/disable_new_targets
8:abfee2b3d29b 2018-06-04 mbed_official Merge pull request #77 from ARMmbed/new_targets
7:ad3e80a40359 2018-05-18 mbed_official Add Ublox c030 (#66)
6:5678c0b6f74e 2018-05-10 mbed_official Merge pull request #63 from ARMmbed/adding_trace_support_and_bug_fixes
5:19c8dcaf5eec 2018-04-11 mbed_official Merge pull request #61 from adbridge/master
4:2d1b2b64dfdd 2018-03-28 mbed_official Merge pull request #60 from adbridge/master
3:3e4aaf05be68 2018-03-16 mbed_official Merge pull request #58 from cmonr/master
2:0f644d6045cf 2018-03-09 mbed_official Merge pull request #55 from ARMmbed/lib_and_server_update
1:ccaceb0dbbaf 2018-03-09 mbed_official Merge pull request #57 from ARMmbed/mbed-os-pr-support
0:4611f6cf2413 2018-03-08 mbed_official Initial commit.