This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server. Especially, BG96 operation check based Mbed OS 5.11, tested via SK Telecom in Korea
This code could be access via Cat.M1(BG96 module) of SK telecom network in Korea. Need a WIZnet BG96 board and development board. Before using this code, must be checking your modem is authorized or not from SK telecom. This code is based on Mbed OS 5.11.5.
Tested with
- DISCOVERY_L485VG_IOT01A
- K66F
- K64F
1. Import the application into your desktop
mbed import https://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-BG96_os511/ cd mbed-os-example-cellular-BG96_os511
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: Jun 4 2019, 13:45:53 [MAIN], plmn: (null) Modem power on Establishing connection .. Connection Established. TCP: connected with echo.mbedcloudtesting.com server TCP: Sent 4 Bytes to echo.mbedcloudtesting.com ...Received from echo server 4 Bytes ... Success. Exiting
5. Patched code
- Based on Mbed OS 5.11.5
- [Patch 1/2] https://github.com/DanielDmlee/mbed-os/commit/6c43e630bd81a47f6e949a36231812c878e237cf
- [Patch 2/2] https://github.com/DanielDmlee/mbed-os/commit/62d6a51c629f1b5d12695ce003227a5ac1324cd9
If need more information such as how to test, please look at https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-cellular/.
Diff: main.cpp
- Revision:
- 27:97054be1a741
- Parent:
- 26:348eec457e58
- Child:
- 28:232da3ce8a88
--- a/main.cpp Tue Nov 20 09:45:32 2018 +0000 +++ b/main.cpp Thu Nov 22 10:30:32 2018 +0000 @@ -22,21 +22,6 @@ #define UDP 0 #define TCP 1 -// SIM pin code goes here -#ifndef MBED_CONF_APP_SIM_PIN_CODE -# define MBED_CONF_APP_SIM_PIN_CODE "1234" -#endif - -#ifndef MBED_CONF_APP_APN -# define MBED_CONF_APP_APN "internet" -#endif -#ifndef MBED_CONF_APP_USERNAME -# define MBED_CONF_APP_USERNAME NULL -#endif -#ifndef MBED_CONF_APP_PASSWORD -# define MBED_CONF_APP_PASSWORD NULL -#endif - // Number of retries / #define RETRY_COUNT 3 @@ -228,15 +213,11 @@ #else dot_thread.start(dot_event); #endif // #if MBED_CONF_MBED_TRACE_ENABLE + + // sim pin, apn, credentials and possible plmn are taken atuomtically from json when using get_default_instance() iface = CellularBase::get_default_instance(); MBED_ASSERT(iface); - /* Set Pin code for SIM card */ - iface->set_sim_pin(MBED_CONF_APP_SIM_PIN_CODE); - - /* Set network credentials here, e.g., APN */ - iface->set_credentials(MBED_CONF_APP_APN, MBED_CONF_APP_USERNAME, MBED_CONF_APP_PASSWORD); - nsapi_error_t retcode = NSAPI_ERROR_NO_CONNECTION; /* Attempt to connect to a cellular network */