Daniel Lee / Mbed OS mbed-os-example-cellular-TPB23

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

Files at this revision

API Documentation at this revision

Revision 2:0f644d6045cf, committed 2018-03-09

Comitter:
mbed_official
Date:
Fri Mar 09 14:00:19 2018 +0000
Parent:
1:ccaceb0dbbaf
Child:
3:3e4aaf05be68
Commit message:
Merge pull request #55 from ARMmbed/lib_and_server_update

lib and server update
.
Commit copied from https://github.com/ARMmbed/mbed-os-example-cellular

Changed in this revision

README.md Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/README.md	Fri Mar 09 09:30:19 2018 +0000
+++ b/README.md	Fri Mar 09 14:00:19 2018 +0000
@@ -93,16 +93,16 @@
 You should see an output similar to this:
 
 ```
-mbed-os-example-cellular, Connecting...
-                                                                             
-                                                                            
+mbed-os-example-cellular
+Establishing connection ...... 
+
 Connection Established.
-UDP: Sent 4 Bytes to echo.u-blox.com
+TCP: connected with echo.mbedcloudtesting.com server
+TCP: Sent 4 Bytes to echo.mbedcloudtesting.com
 Received from echo server 4 Bytes
-                                                            
-                                                            
+
+
 Success. Exiting
-
 ```
 
 ## Troubleshooting

--- a/main.cpp	Fri Mar 09 09:30:19 2018 +0000
+++ b/main.cpp	Fri Mar 09 14:00:19 2018 +0000
@@ -46,13 +46,13 @@
 OnboardCellularInterface iface;
 
 // Echo server hostname
-const char *host_name = "echo.u-blox.com";
+const char *host_name = "echo.mbedcloudtesting.com";
 
 // Echo server port (same for TCP and UDP)
 const int port = 7;
 
 Mutex PrintMutex;
-Thread dot_thread;
+Thread dot_thread(osPriorityNormal, 512);
 
 #define PRINT_TEXT_LENGTH 128
 char print_text[PRINT_TEXT_LENGTH];