Daniel Lee / Mbed OS mbed-os-example-cellular-le910

This is an example based on mbed-os cellular APIs that demonstrates a TCP or UDP echo transaction with a public echo server.

This code is forked from https://os.mbed.com/teams/mbed-os-examples/code/mbed-os-example-cellular/

This is an example showing how to use Skywire board with LE910-x module.

In this example, I had used the LE910-EUG module for 4G communication. Mbed OS code wasn't changed for LE910-x, because the Telit' HE910 is included mainline code on Mbed OS already. HE910 and LE910 are most similar. Therefore you can use LE910 via HE910 driver. Please check to configure of mbed_app.json, and initialize code for Skywire board of main.cpp.

Open mbed_app.json, you need to define a UART for the MCU to communicate with the xE910 module.

            "TELIT_HE910.tx"                 : "D1",
            "TELIT_HE910.rx"                 : "D0",
            "TELIT_HE910.provide-default"    : true

If you are using Pelion CM, make the following settings:

            "nsapi.default-cellular-apn"     : "\"stream.co.uk\"",
            "nsapi.default-cellular-username": "\"streamip\"",
            "nsapi.default-cellular-password": "\"streamip\"",

For your information, please see Pelion Connectivity Quick start guide.

320

You can find Skywire sensor shield information though NimbeLink site.

Tested with

  • DISCO_L475VG_IOT01A
  • K64F

1. Import the application into your desktop:

 mbed import https://os.mbed.com/users/Daniel_Lee/code/mbed-os-example-cellular-le910/

 cd mbed-os-example-cellular-le910

2. Compile and program:

mbed compile -t GCC_ARM -m DISCO_L475VG_IOT01A

(supported toolchains : GCC_ARM / ARM / IAR)

3. Download binary to a target board

4. Result

mbed-os-example-cellular


Built: Feb  7 2020, 07:02:27
Starting Skywire board with LE910-EUG Demo...
Waiting for Skywire to Boot...
Wait 15 seconds..
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

mbed_app.json@27:97054be1a741, 2018-11-22 (annotated)

Committer:
mbed_official
Date:
Thu Nov 22 10:30:32 2018 +0000
Revision:
27:97054be1a741
Parent:
26:348eec457e58
Child:
28:232da3ce8a88
Changed to use NSAPI default values for pin, apn, plmn and credentials.



.

Commit copied from https://github.com/ARMmbed/mbed-os-example-cellular

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 }
mbed_official 6:5678c0b6f74e 17 },
mbed_official 0:4611f6cf2413 18 "target_overrides": {
mbed_official 0:4611f6cf2413 19 "*": {
mbed_official 6:5678c0b6f74e 20 "mbed-trace.enable": false,
mbed_official 0:4611f6cf2413 21 "lwip.ipv4-enabled": true,
mbed_official 0:4611f6cf2413 22 "lwip.ethernet-enabled": false,
mbed_official 0:4611f6cf2413 23 "lwip.ppp-enabled": true,
mbed_official 0:4611f6cf2413 24 "lwip.tcp-enabled": true,
mbed_official 0:4611f6cf2413 25 "platform.stdio-convert-newlines": true,
mbed_official 0:4611f6cf2413 26 "platform.stdio-baud-rate": 115200,
mbed_official 6:5678c0b6f74e 27 "platform.default-serial-baud-rate": 115200,
mbed_official 11:23ea0907186e 28 "platform.stdio-buffered-serial": true,
mbed_official 27:97054be1a741 29 "cellular.debug-at": false,
mbed_official 27:97054be1a741 30 "nsapi.default-cellular-plmn": 0,
mbed_official 27:97054be1a741 31 "nsapi.default-cellular-sim-pin": "\"1234\"",
mbed_official 27:97054be1a741 32 "nsapi.default-cellular-apn": 0,
mbed_official 27:97054be1a741 33 "nsapi.default-cellular-username": 0,
mbed_official 27:97054be1a741 34 "nsapi.default-cellular-password": 0
mbed_official 0:4611f6cf2413 35 }
mbed_official 0:4611f6cf2413 36 }
mbed_official 0:4611f6cf2413 37 }