Daniel Lee
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
- Need to check CodeZoo's s hardware a guide.
- Need a CodeZoo's NBIoT board and development board.
- Board picture & Jumper configure
- And also can use with mbed application shield, as shown below.
Tested with
- DISCO_L475VG_IOT01A - If you are in Korea, can buy here !
- NUCLEO_F429ZI - If you are in Korea, can buy here !
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
Revision 28:232da3ce8a88, committed 2018-11-23
- Comitter:
- mbed_official
- Date:
- Fri Nov 23 10:00:30 2018 +0000
- Parent:
- 27:97054be1a741
- Child:
- 29:f1f568035f90
- Commit message:
- Merge pull request #110 from AriParkkila/master
Change default network interface to NetworkInterface
.
Commit copied from https://github.com/ARMmbed/mbed-os-example-cellular
Changed in this revision
--- a/README.md Thu Nov 22 10:30:32 2018 +0000
+++ b/README.md Fri Nov 23 10:00:30 2018 +0000
@@ -73,7 +73,6 @@
```"target_overrides": {
"*": {
- "target.features_add": ["LWIP"],
"mbed-trace.enable": true,
```
@@ -98,6 +97,19 @@
## Compiling the application
+The master branch is for daily development and it uses the latest mbed-os/master.
+
+To use the latest stable version update to a Mbed OS release tag, for example:
+
+```
+mbed releases
+ * mbed-os-5.10.4
+ ...
+mbed update mbed-os-5.10.4
+```
+
+You may need to use `--clean` option to discard your local changes (use with caution).
+
Use Mbed CLI commands to generate a binary for the application. For example, in the case of GCC, use the following command:
```sh
--- a/main.cpp Thu Nov 22 10:30:32 2018 +0000
+++ b/main.cpp Fri Nov 23 10:00:30 2018 +0000
@@ -25,7 +25,7 @@
// Number of retries /
#define RETRY_COUNT 3
-CellularBase *iface;
+NetworkInterface *iface;
// Echo server hostname
const char *host_name = MBED_CONF_APP_ECHO_SERVER_HOSTNAME;
@@ -91,7 +91,7 @@
{
while (true) {
ThisThread::sleep_for(4000);
- if (iface && iface->is_connected()) {
+ if (iface && iface->get_connection_status() == NSAPI_STATUS_GLOBAL_UP) {
break;
} else {
trace_mutex.lock();
@@ -110,7 +110,7 @@
nsapi_error_t retcode = NSAPI_ERROR_OK;
uint8_t retry_counter = 0;
- while (!iface->is_connected()) {
+ while (iface->get_connection_status() != NSAPI_STATUS_GLOBAL_UP) {
retcode = iface->connect();
if (retcode == NSAPI_ERROR_AUTH_FAILURE) {
print_function("\n\nAuthentication Failure. Exiting application\n");
@@ -215,7 +215,7 @@
#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();
+ iface = NetworkInterface::get_default_instance();
MBED_ASSERT(iface);
nsapi_error_t retcode = NSAPI_ERROR_NO_CONNECTION;
--- a/mbed-os.lib Thu Nov 22 10:30:32 2018 +0000 +++ b/mbed-os.lib Fri Nov 23 10:00:30 2018 +0000 @@ -1,1 +1,1 @@ -https://github.com/ARMmbed/mbed-os/#2fd0c5cfbd83fce62da6308f9d64c0ab64e1f0d6 +https://github.com/ARMmbed/mbed-os/
--- a/mbed_app.json Thu Nov 22 10:30:32 2018 +0000
+++ b/mbed_app.json Fri Nov 23 10:00:30 2018 +0000
@@ -17,6 +17,7 @@
},
"target_overrides": {
"*": {
+ "target.network-default-interface-type": "CELLULAR",
"mbed-trace.enable": false,
"lwip.ipv4-enabled": true,
"lwip.ethernet-enabled": false,