Keystone Developer / Mbed OS sara-n200-hello-mqtt-sn

Example project to publish messages to a MQTT-SN broker using the u-blox SARA-N200 NB-IoT modem

Dependencies:   MQTTSNPacket X-NUCLEO-SARA-N200

Files at this revision

API Documentation at this revision

Revision 12:9a2dab9b927d, committed 2018-08-23

Comitter:
KeystoneElectronic
Date:
Thu Aug 23 11:32:34 2018 +0200
Parent:
11:eb5b193410d1
Commit message:
Update readme

Changed in this revision

README.md Show annotated file Show diff for this revision Revisions of this file 
--- a/README.md	Wed Aug 22 14:45:57 2018 +0000
+++ b/README.md	Thu Aug 23 11:32:34 2018 +0200
@@ -1,6 +1,6 @@
-# Getting started with Blinky on mbed OS
+# Getting started with Hello MQTT-SN
 
-This guide reviews the steps required to get Blinky working on an mbed OS platform.
+This guide reviews the steps required to use the MQTT-SN example on an mbed OS platform.
 
 Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
 
@@ -9,39 +9,58 @@
 From the command-line, import the example:
 
 ```
-mbed import mbed-os-example-blinky
-cd mbed-os-example-blinky
+mbed import sara-n200-hello-mqtt-sn
+cd sara-n200-hello-mqtt-sn
 ```
 
+### Configure the MQTT-SN broker
+Edit the mbed_app.json:
+```
+        "topic": "\"nucleo\"",
+        "mqtt_sn_host": "\"160.119.253.14\"",
+        "mqtt_sn_port": "10000"
+```
+Set the host (do not forget the escaped Quotation marks), port and topic to which your node will connect to
+
 ### Now compile
 
 Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
 
 ```
-mbed compile -m K64F -t ARM
+mbed compile -m NUCLEO_F411RE -t GCC_ARM
 ```
 
 Your PC may take a few minutes to compile your code. At the end, you see the following result:
 
 ```
 [snip]
-+----------------------------+-------+-------+------+
-| Module                     | .text | .data | .bss |
-+----------------------------+-------+-------+------+
-| Misc                       | 13939 |    24 | 1372 |
-| core/hal                   | 16993 |    96 |  296 |
-| core/rtos                  |  7384 |    92 | 4204 |
-| features/FEATURE_IPV4      |    80 |     0 |  176 |
-| frameworks/greentea-client |  1830 |    60 |   44 |
-| frameworks/utest           |  2392 |   512 |  292 |
-| Subtotals                  | 42618 |   784 | 6384 |
-+----------------------------+-------+-------+------+
-Allocated Heap: unknown
-Allocated Stack: unknown
-Total Static RAM memory (data + bss): 7168 bytes
-Total RAM memory (data + bss + heap + stack): 7168 bytes
-Total Flash memory (text + data + misc): 43402 bytes
-Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
++-----------------------------------------+-------+-------+------+
+| Module                                  | .text | .data | .bss |
++-----------------------------------------+-------+-------+------+
+| MQTTSNPacket/MQTTSNConnectClient.o      |   274 |     0 |    0 |
+| MQTTSNPacket/MQTTSNDeserializePublish.o |   390 |     0 |    0 |
+| MQTTSNPacket/MQTTSNPacket.o             |   280 |     0 |    0 |
+| MQTTSNPacket/MQTTSNSerializePublish.o   |   460 |     0 |    0 |
+| MQTTSNPacket/MQTTSNSubscribeClient.o    |   304 |     0 |    0 |
+| X-NUCLEO-SARA-N200/sara-n2.o            |  2018 |     0 |    0 |
+| [fill]                                  |   172 |     4 |   18 |
+| [lib]/c.a                               | 42290 |  2472 |   89 |
+| [lib]/gcc.a                             |  3392 |     0 |    0 |
+| [lib]/misc                              |   252 |    16 |   28 |
+| main.o                                  |  3531 |    52 | 2099 |
+| mbed-os/drivers                         |  3774 |     4 |  100 |
+| mbed-os/features                        |    16 |     0 |    0 |
+| mbed-os/hal                             |  1697 |     4 |   68 |
+| mbed-os/platform                        |  6218 |   260 |  345 |
+| mbed-os/rtos                            |  9058 |   168 | 6081 |
+| mbed-os/targets                         |  8114 |     4 |  900 |
+| Subtotals                               | 82240 |  2984 | 9728 |
++-----------------------------------------+-------+-------+------+
+Total Static RAM memory (data + bss): 12712 bytes
+Total Flash memory (text + data): 85224 bytes
+
+Image: ./BUILD/NUCLEO_F411RE/GCC_ARM/sara-n200-hello-mqtt-sn.bin
+
 ```
 
 ### Program your board
@@ -51,6 +70,7 @@
 1. Press the reset button to start the program.
 
 The LED on your platform turns on and off.
+Open a terminal to see debug information.
 
 ## Troubleshooting