NXP / Mbed OS pelion-example-frdm

Mbed OS and Pelion Device Management example for FRDM-K64F and FRDM-K66F boards

Dependencies:   FXAS21002 FXOS8700Q

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

  • FRDM-K64F - onboard Ethernet and onboard SD card holder.
  • FRDM-K66F - onboard Ethernet and onboard SD card holder.

Follow the Quick-Start instructions: https://cloud.mbed.com/quick-start

FRDM-K64F FRDM-K66F

Example functionality

This example showcases the following device functionality:

  • Read onboard FXOS8700Q accelerometer and magnetometer, and report the values as Pelion LWM2M resources (see image below).
  • (FRDM-K66F only) Read onboard FXAS21002 gyroscope and report the values as Pelion LWM2M resources.
  • On user button click, increment Pelion LWM2M button resource.
  • Allow the user to change the state of the board LED from Pelion LWM2M led_state resource and PUT request.

/media/uploads/screamer/pelion_st_humidity_reading.png?v=2

Use this example with Mbed CLI

1. Import the application into your desktop:

mbed import https://os.mbed.com/teams/NXP/code/pelion-example-frdm

cd pelion-example-frdm

2. Install the CLOUD_SDK_API_KEY

mbed config -G CLOUD_SDK_API_KEY <PELION_DM_API_KEY>

For instructions on how to generate your API key, please see the documentation.

3. Initialize firmware credentials (done once per repository). You can use the following command:

mbed dm init -d "<your company name in Pelion DM>" --model-name "<product model identifier>" -q --force

If above command do not work for your Mbed CLI, please consider upgrading Mbed CLI to version 1.9.x or above.

4. Compile and program:

mbed compile -t <toolchain> -m <TARGET_BOARD>

(supported toolchains : GCC_ARM / ARM / IAR)

5. You can connect on a virtual terminal/COM port to the platform using:

mbed sterm -b 115200

This should give you an output similar to:

[BOOT] Mbed Bootloader
[BOOT] ARM: 00000000000000000000
[BOOT] OEM: 00000000000000000000
[BOOT] Layout: 0 8374
[BOOT] Active firmware integrity check:
[BOOT] SHA256: 411F422DE8FF545E2D3C373E87D5328162A129314A655AEC32B9A167DE29177E
[BOOT] Version: 1553606618
[BOOT] Slot 0 is empty
[BOOT] Active firmware up-to-date
[BOOT] Application's start address: 0x10400
[BOOT] Application's jump address: 0x112C1
[BOOT] Application's stack address: 0x20030000
[BOOT] Forwarding to application...


Starting Simple Pelion Device Management Client example
You can hold the user button during boot to format the storage and change the device identity.

Sensors configuration:
FXOS8700Q accelerometer = 0xC7
FXOS8700Q magnetometer  = 0xC7
FXAS21002 gyroscope     = 0xB7

Connecting to the network using the default network interface...
Connected to the network successfully. IP address: 10.2.202.65
Initializing Pelion Device Management Client...
Initialized Pelion Device Management Client. Registering...
Press the user button to increment the LwM2M resource value...

FXOS8700Q mag:    0.312 x,   0.039 y,  -1.625 z [gauss]
FXOS8700Q acc:    0.139 x,  -0.123 y,   4.260 z [g]
FXAS21002 gryo:  13.089 x,  13.089 y,  13.089 z [dps]

Diff: mbed_settings.py

Revision:
0:a9d53048f0b6
diff -r 000000000000 -r a9d53048f0b6 mbed_settings.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_settings.py	Mon Mar 25 14:58:08 2019 +0000
@@ -0,0 +1,45 @@
+"""
+mbed SDK
+Copyright (c) 2016 ARM Limited
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+"""
+
+from os.path import join, abspath, dirname
+
+#ROOT = abspath(join(dirname(__file__), "."))
+
+##############################################################################
+# Build System Settings
+##############################################################################
+#BUILD_DIR = abspath(join(ROOT, "build"))
+
+# ARM
+#ARM_PATH = "C:/Program Files/ARM"
+
+# GCC ARM
+#GCC_ARM_PATH = ""
+
+# IAR
+#IAR_PATH = "C:/Program Files (x86)/IAR Systems/Embedded Workbench 7.0/arm"
+
+# Goanna static analyser. Please overload it in private_settings.py
+#GOANNA_PATH = "c:/Program Files (x86)/RedLizards/Goanna Central 3.2.3/bin"
+
+#BUILD_OPTIONS = []
+
+# mbed.org username
+#MBED_ORG_USER = ""
+
+# Print compiler warnings and errors as link format
+#PRINT_COMPILER_OUTPUT_AS_LINK = False