SUNGTAE KIM / Mbed OS mbed-os-example-cellular-BG96-TCP

Set specific IP Address/Port

Overview

This code could be access via Cat.M1(BG96 module) of SK telecom network in Korea. Need a WIZnet IoT Shield BG96 board and development board. The code forked Daniel_Lee's mbed-os-example-cellular-BG96 repository(https://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-BG96/) and added some features.

This example is known to work great on the following platforms:

/media/uploads/stkim92/pel01.png

Requirement

  1. FRDM-K64F or FRDM-K66F
  2. WIZnet IoT Shield BG96 board
  3. USIM card

Example functionality

This example showcases the following device functionality:

1. Import into Compiler

/media/uploads/stkim92/cellular_1.png

2. Compile and Program

/media/uploads/stkim92/cellular_2.png

3. If successfully connect to cellular networks(SKTelecom) then you can get below message

Device's Result

include the mbed library with this snippet

mbed-os-example-cellular


Built: Sep  6 2019, 07:06:26


[MAIN], plmn: NULL
Establishing connection
M2Mnet(BG96) Power ON
[00005500ms][INFO][CELL]: New CellularContext  (20004120)
[00005500ms][INFO][CELL]: CellularContext plmn NULL
[00005501ms][INFO][CELL]: CellularContext connect
[00006502ms][INFO][CELL]: Start connecting (timeout 1000 ms)
[00006511ms][INFO][CELL]: RSSI unknown
[00006519ms][INFO][CELL]: Modem ready
[00006523ms][INFO][CELL]: RSSI unknown
[00006523ms][INFO][CELL]: Setup SIM (timeout 1000 ms)
[00006528ms][INFO][CELL]: SIM is ready
[00006555ms][INFO][CELL]: RSSI unknown
[00006563ms][INFO][CELL]: Network registration (timeout 1000 ms)
[00006567ms][INFO][CELL]: Continue after 1 seconds
[00006688ms][ERR ][CELL]: AT overflow
[00007572ms][INFO][CELL]: RSSI unknown
[00007578ms][INFO][CELL]: Registering network => Attaching network
[00007582ms][INFO][CELL]: RSSI unknown
[00007582ms][INFO][CELL]: Attaching network (timeout 1000 ms)
[00007606ms][INFO][CELL]: Found PDP context 2
[00007609ms][INFO][CELL]: Activate PDP context 2
[00009626ms][INFO][CELL]: Found PDP context 2


Connection Established.
[00009635ms][INFO][CELL]: Socket 0 open
[00009741ms][INFO][CELL]: Socket 0 sent 4 bytes to 222.98.173.203 port 7878
TCP: Sent 4 Bytes to 222.98.173.203
[00010873ms][INFO][CELL]: Socket 0 recv 4 bytes
[00011421ms][INFO][CELL]: Socket 0 closed
Received from server 4 Bytes
[00011421ms][INFO][CELL]: CellularContext disconnect()
[00011422ms][INFO][CELL]: cb: CellularContext disconnected


Success. Exiting

Server Result

/media/uploads/stkim92/mbed_guide_bg96_cellular-3.png

mbed_app.json@45:2d57fafd8d73, 2019-09-06 (annotated)

Committer:
stkim92
Date:
Fri Sep 06 07:44:03 2019 +0000
Revision:
45:2d57fafd8d73
Parent:
41:e8e6382f9d20 
Set Server IP/Port

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:4611f6cf2413 1 {
mbed_official 0:4611f6cf2413 2 "config": {
mbed_official 0:4611f6cf2413 3 "sock-type": "TCP",
mbed_official 11:23ea0907186e 4 "echo-server-hostname": {
mbed_official 11:23ea0907186e 5 "help": "Echo server host name.",
mbed_official 11:23ea0907186e 6 "value": "\"echo.mbedcloudtesting.com\""
mbed_official 11:23ea0907186e 7 },
mbed_official 11:23ea0907186e 8 "echo-server-port": {
mbed_official 11:23ea0907186e 9 "help": "Echo server port number.",
mbed_official 11:23ea0907186e 10 "value": 7
mbed_official 11:23ea0907186e 11 },
mbed_official 6:5678c0b6f74e 12 "trace-level": {
mbed_official 6:5678c0b6f74e 13 "help": "Options are TRACE_LEVEL_ERROR,TRACE_LEVEL_WARN,TRACE_LEVEL_INFO,TRACE_LEVEL_DEBUG",
mbed_official 6:5678c0b6f74e 14 "macro_name": "MBED_TRACE_MAX_LEVEL",
mbed_official 6:5678c0b6f74e 15 "value": "TRACE_LEVEL_INFO"
mbed_official 0:4611f6cf2413 16 }
Daniel_Lee 37:84cc2e107564 17 },
mbed_official 0:4611f6cf2413 18 "target_overrides": {
mbed_official 0:4611f6cf2413 19 "*": {
mbed_official 28:232da3ce8a88 20 "target.network-default-interface-type": "CELLULAR",
Daniel_Lee 37:84cc2e107564 21 "mbed-trace.enable": true,
Daniel_Lee 38:b89498bddb34 22 "lwip.ipv4-enabled": false,
Daniel_Lee 37:84cc2e107564 23 "lwip.ipv6-enabled": true,
mbed_official 0:4611f6cf2413 24 "lwip.ethernet-enabled": false,
Daniel_Lee 37:84cc2e107564 25 "lwip.ppp-enabled": false,
mbed_official 0:4611f6cf2413 26 "lwip.tcp-enabled": true,
mbed_official 0:4611f6cf2413 27 "platform.stdio-convert-newlines": true,
mbed_official 0:4611f6cf2413 28 "platform.stdio-baud-rate": 115200,
mbed_official 6:5678c0b6f74e 29 "platform.default-serial-baud-rate": 115200,
mbed_official 11:23ea0907186e 30 "platform.stdio-buffered-serial": true,
mbed_official 27:97054be1a741 31 "cellular.debug-at": false,
mbed_official 27:97054be1a741 32 "nsapi.default-cellular-plmn": 0,
mbed_official 27:97054be1a741 33 "nsapi.default-cellular-sim-pin": "\"1234\"",
Daniel_Lee 37:84cc2e107564 34 "nsapi.default-cellular-apn": "\"lte-internet.sktelecom.com\"",
mbed_official 27:97054be1a741 35 "nsapi.default-cellular-username": 0,
Daniel_Lee 37:84cc2e107564 36 "nsapi.default-cellular-password": 0,
Daniel_Lee 37:84cc2e107564 37 "QUECTEL_BG96.tx": "D1",
Daniel_Lee 37:84cc2e107564 38 "QUECTEL_BG96.rx": "D0",
Daniel_Lee 37:84cc2e107564 39 "QUECTEL_BG96.provide-default": true
mbed_official 0:4611f6cf2413 40 }
mbed_official 0:4611f6cf2413 41 }
Daniel_Lee 37:84cc2e107564 42 }