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This is a simple mbed client example demonstrating, registration of a device with mbed Device Connector and reading and writing values as well as deregistering on different Network Interfaces including Ethernet, WiFi, 6LoWPAN ND and Thread respectively.
Fork of mbed-os-example-client by
README.md@0:7d5ec759888b, 2016-07-25 (annotated)
- Committer:
- Yogesh Pande
- Date:
- Mon Jul 25 16:32:20 2016 +0300
- Revision:
- 0:7d5ec759888b
- Child:
- 1:e06e899acba6
Update example home repo at https://github.com/ARMmbed/mbed-os-example-client
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Yogesh Pande |
0:7d5ec759888b | 1 | # Getting started with mbed Client on mbed OS |
Yogesh Pande |
0:7d5ec759888b | 2 | |
Yogesh Pande |
0:7d5ec759888b | 3 | This is the mbed Client example for mbed OS (we also have one for [Linux](https://github.com/ARMmbed/mbed-client-linux-example)). It demonstrates how to register a device with mbed Device Connector, how to read and write values, and how to deregister. If you are unfamiliar with mbed Device Connector, we recommend that you read [the introduction to the data model](https://docs.mbed.com/docs/mbed-device-connector-web-interfaces/en/latest/#the-mbed-device-connector-data-model) first. |
Yogesh Pande |
0:7d5ec759888b | 4 | |
Yogesh Pande |
0:7d5ec759888b | 5 | The application: |
Yogesh Pande |
0:7d5ec759888b | 6 | |
Yogesh Pande |
0:7d5ec759888b | 7 | * Connects to network with WiFi, Ethernet, 6LoWPAN ND or Thread connection. |
Yogesh Pande |
0:7d5ec759888b | 8 | * Registers with mbed Device Connector. |
Yogesh Pande |
0:7d5ec759888b | 9 | * Gives mbed Device Connector access to its resources (read and write). |
Yogesh Pande |
0:7d5ec759888b | 10 | * Records the number of clicks on the device’s button and sends the number to mbed Device Connector. |
Yogesh Pande |
0:7d5ec759888b | 11 | * Lets you control the blink pattern of the LED on the device (through mbed Device Connector). |
Yogesh Pande |
0:7d5ec759888b | 12 | |
Yogesh Pande |
0:7d5ec759888b | 13 | ## Required hardware |
Yogesh Pande |
0:7d5ec759888b | 14 | |
Yogesh Pande |
0:7d5ec759888b | 15 | * [FRDM-K64F](http://developer.mbed.org/platforms/frdm-k64f/) board. |
Yogesh Pande |
0:7d5ec759888b | 16 | * 1-2 micro-USB cables. |
Yogesh Pande |
0:7d5ec759888b | 17 | * [mbed 6LoWPAN gateway router](https://firefly-iot.com/product/firefly-6lowpan-gateway-2-4ghz/) for 6LoWPAN ND and Thread. |
Yogesh Pande |
0:7d5ec759888b | 18 | * mbed 6LoWPAN shield (AT86RF212B/[AT86RF233](https://firefly-iot.com/product/firefly-arduino-shield-2-4ghz/)) for 6LoWPAN ND and Thread. |
Yogesh Pande |
0:7d5ec759888b | 19 | * Ethernet cable and connection to the internet. |
Yogesh Pande |
0:7d5ec759888b | 20 | |
Yogesh Pande |
0:7d5ec759888b | 21 | ## Required software |
Yogesh Pande |
0:7d5ec759888b | 22 | |
Yogesh Pande |
0:7d5ec759888b | 23 | * [ARM mbed account](https://developer.mbed.org/account/login/?next=/). |
Yogesh Pande |
0:7d5ec759888b | 24 | * [mbed-cli](https://github.com/ARMmbed/mbed-cli) - to build the example programs. To learn how to build mbed OS applications with mbed-cli, see [the user guide](https://github.com/ARMmbed/mbed-cli/blob/master/README.md). |
Yogesh Pande |
0:7d5ec759888b | 25 | * [Serial port monitor](https://developer.mbed.org/handbook/SerialPC#host-interface-and-terminal-applications). |
Yogesh Pande |
0:7d5ec759888b | 26 | |
Yogesh Pande |
0:7d5ec759888b | 27 | ## Application setup |
Yogesh Pande |
0:7d5ec759888b | 28 | |
Yogesh Pande |
0:7d5ec759888b | 29 | To configure the example application, please: |
Yogesh Pande |
0:7d5ec759888b | 30 | |
Yogesh Pande |
0:7d5ec759888b | 31 | 1. [Select the connection type](#connection-type). |
Yogesh Pande |
0:7d5ec759888b | 32 | 1. [Set the client credentials](#client-credentials). |
Yogesh Pande |
0:7d5ec759888b | 33 | 1. [Change 6LoWPAN ND & Thread settings](#6lowpan-nd-and-thread-settings). |
Yogesh Pande |
0:7d5ec759888b | 34 | 1. [Change Ethernet settings](#ethernet-settings). |
Yogesh Pande |
0:7d5ec759888b | 35 | 1. [Change Wi-Fi settings](#wi-fi-settings). |
Yogesh Pande |
0:7d5ec759888b | 36 | 1. [Set up an IP address](#ip-address-setup). This step is optional. |
Yogesh Pande |
0:7d5ec759888b | 37 | 1. [Change the socket type](#changing-socket-type). This step is optional. |
Yogesh Pande |
0:7d5ec759888b | 38 | |
Yogesh Pande |
0:7d5ec759888b | 39 | ### Connection type |
Yogesh Pande |
0:7d5ec759888b | 40 | |
Yogesh Pande |
0:7d5ec759888b | 41 | The application uses Ethernet as the default connection type. To change the connection type, set one of them in `mbed_app.json`. For example, to enable 6LoWPAN ND mode: |
Yogesh Pande |
0:7d5ec759888b | 42 | |
Yogesh Pande |
0:7d5ec759888b | 43 | ```json |
Yogesh Pande |
0:7d5ec759888b | 44 | "network-interface": { |
Yogesh Pande |
0:7d5ec759888b | 45 | "help": "options are ETHERNET,WIFI,MESH_LOWPAN_ND,MESH_THREAD.", |
Yogesh Pande |
0:7d5ec759888b | 46 | "value": "MESH_LOWPAN_ND" |
Yogesh Pande |
0:7d5ec759888b | 47 | } |
Yogesh Pande |
0:7d5ec759888b | 48 | ``` |
Yogesh Pande |
0:7d5ec759888b | 49 | |
Yogesh Pande |
0:7d5ec759888b | 50 | ### Client credentials |
Yogesh Pande |
0:7d5ec759888b | 51 | |
Yogesh Pande |
0:7d5ec759888b | 52 | To register the application to the Connector service, you need to create and set the client side certificate. |
Yogesh Pande |
0:7d5ec759888b | 53 | |
Yogesh Pande |
0:7d5ec759888b | 54 | 1. Go to [mbed Device Connector](https://connector.mbed.com) and log in with your mbed account. |
Yogesh Pande |
0:7d5ec759888b | 55 | 1. On mbed Device Connector, go to [My Devices > Security credentials](https://connector.mbed.com/#credentials) and click the **Get my device security credentials** button to get new credentials for your device. |
Yogesh Pande |
0:7d5ec759888b | 56 | 1. Replace the contents in `security.h` of this project's directory with content copied above. |
Yogesh Pande |
0:7d5ec759888b | 57 | |
Yogesh Pande |
0:7d5ec759888b | 58 | ### 6LoWPAN ND and Thread settings |
Yogesh Pande |
0:7d5ec759888b | 59 | |
Yogesh Pande |
0:7d5ec759888b | 60 | 6LoWPAN ND and Thread use IPv6 for connectivity. Therefore, you need to verify first that you have a working IPv6 connection. To do that, ping the Connector IPv6 address `2607:f0d0:2601:52::20` from your network. |
Yogesh Pande |
0:7d5ec759888b | 61 | |
Yogesh Pande |
0:7d5ec759888b | 62 | #### mbed gateway |
Yogesh Pande |
0:7d5ec759888b | 63 | |
Yogesh Pande |
0:7d5ec759888b | 64 | To connect the example application in 6LoWPAN ND or Thread mode to Connector, you need to set up an mbed 6LoWPAN gateway router as follows: |
Yogesh Pande |
0:7d5ec759888b | 65 | |
Yogesh Pande |
0:7d5ec759888b | 66 | 1. Use an Ethernet cable to connect the mbed 6LoWPAN gateway router to the internet. |
Yogesh Pande |
0:7d5ec759888b | 67 | 2. Use a micro-USB cable to connect the mbed 6LoWPAN gateway router to your computer. The computer will list the router as removable storage. |
Yogesh Pande |
0:7d5ec759888b | 68 | 3. The firmware for the gateway is located in the `GW_Binary` folder in the root of this example. Select the binary matching your application bootstrap mode: |
Yogesh Pande |
0:7d5ec759888b | 69 | |
Yogesh Pande |
0:7d5ec759888b | 70 | * For the **6LoWPAN ND** bootstrap, use `gateway6LoWPANDynamic.bin`. |
Yogesh Pande |
0:7d5ec759888b | 71 | * For the **Thread** bootstrap, use `gatewayThreadDynamic.bin`. |
Yogesh Pande |
0:7d5ec759888b | 72 | |
Yogesh Pande |
0:7d5ec759888b | 73 | The dynamic binaries use IPv6 autoconfiguration and enable the client to connect to the Connector service. The static binaries create a site-local IPv6 network and packets cannot be routed outside. |
Yogesh Pande |
0:7d5ec759888b | 74 | |
Yogesh Pande |
0:7d5ec759888b | 75 | 4. Copy the gateway binary file to the mbed 6LoWPAN gateway router to flash the device. The device reboots automatically after flashing. If that does not happen, press the **Reset** button on the board. |
Yogesh Pande |
0:7d5ec759888b | 76 | |
Yogesh Pande |
0:7d5ec759888b | 77 | You can view debug traces from the gateway with a serial port monitor. The gateway uses baud rate 460800. The gateway IPv6 address is correctly configured when the following trace is visible: `Eth bootstrap ready, IP=XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX:XXXX`. |
Yogesh Pande |
0:7d5ec759888b | 78 | |
Yogesh Pande |
0:7d5ec759888b | 79 | #### Channel settings |
Yogesh Pande |
0:7d5ec759888b | 80 | |
Yogesh Pande |
0:7d5ec759888b | 81 | The default 2.4GHz channel settings are already defined by the [mbed-mesh-api](https://github.com/ARMmbed/mbed-mesh-api) to match the mbed gateway settings. The application can override these settings by adding them to the `mbed_app.json` file in the main project directory. For example: |
Yogesh Pande |
0:7d5ec759888b | 82 | |
Yogesh Pande |
0:7d5ec759888b | 83 | ```json |
Yogesh Pande |
0:7d5ec759888b | 84 | "target_overrides": { |
Yogesh Pande |
0:7d5ec759888b | 85 | "*": { |
Yogesh Pande |
0:7d5ec759888b | 86 | "mbed-mesh-api.6lowpan-nd-channel-page": 0, |
Yogesh Pande |
0:7d5ec759888b | 87 | "mbed-mesh-api.6lowpan-nd-channel": 12, |
Yogesh Pande |
0:7d5ec759888b | 88 | "mbed-mesh-api.thread-config-channel-page": 0, |
Yogesh Pande |
0:7d5ec759888b | 89 | "mbed-mesh-api.thread-config-channel": 12 |
Yogesh Pande |
0:7d5ec759888b | 90 | } |
Yogesh Pande |
0:7d5ec759888b | 91 | } |
Yogesh Pande |
0:7d5ec759888b | 92 | ``` |
Yogesh Pande |
0:7d5ec759888b | 93 | |
Yogesh Pande |
0:7d5ec759888b | 94 | For sub-GHz shields (AT86RF212B) use the following overrides, **6LoWPAN ND only**: |
Yogesh Pande |
0:7d5ec759888b | 95 | |
Yogesh Pande |
0:7d5ec759888b | 96 | ```json |
Yogesh Pande |
0:7d5ec759888b | 97 | "mbed-mesh-api.6lowpan-nd-channel-page": 2, |
Yogesh Pande |
0:7d5ec759888b | 98 | "mbed-mesh-api.6lowpan-nd-channel": 1 |
Yogesh Pande |
0:7d5ec759888b | 99 | ``` |
Yogesh Pande |
0:7d5ec759888b | 100 | |
Yogesh Pande |
0:7d5ec759888b | 101 | For more information about the radio shields, see [the related documentation](docs/radio_module_identify.md). All the configurable settings can be found in the `mbed-os-example-client/mbed-os/features/FEATURE_IPV6/mbed-mesh-api/mbed_lib.json` file. |
Yogesh Pande |
0:7d5ec759888b | 102 | |
Yogesh Pande |
0:7d5ec759888b | 103 | #### Thread-specific settings |
Yogesh Pande |
0:7d5ec759888b | 104 | |
Yogesh Pande |
0:7d5ec759888b | 105 | With Thread, you can change the operating mode of the client from the default router mode to a sleepy end device by adding the following override to the `mbed_app.json` file: |
Yogesh Pande |
0:7d5ec759888b | 106 | |
Yogesh Pande |
0:7d5ec759888b | 107 | ```json |
Yogesh Pande |
0:7d5ec759888b | 108 | "mbed-mesh-api.thread-device-type": "MESH_DEVICE_TYPE_THREAD_SLEEPY_END_DEVICE" |
Yogesh Pande |
0:7d5ec759888b | 109 | ``` |
Yogesh Pande |
0:7d5ec759888b | 110 | |
Yogesh Pande |
0:7d5ec759888b | 111 | ### Ethernet settings |
Yogesh Pande |
0:7d5ec759888b | 112 | |
Yogesh Pande |
0:7d5ec759888b | 113 | For running the example application using Ethernet, you need: |
Yogesh Pande |
0:7d5ec759888b | 114 | |
Yogesh Pande |
0:7d5ec759888b | 115 | - An Ethernet cable. |
Yogesh Pande |
0:7d5ec759888b | 116 | - An Ethernet connection to the internet. |
Yogesh Pande |
0:7d5ec759888b | 117 | |
Yogesh Pande |
0:7d5ec759888b | 118 | ### Wi-Fi settings |
Yogesh Pande |
0:7d5ec759888b | 119 | |
Yogesh Pande |
0:7d5ec759888b | 120 | The example application uses ESP8266 WiFi Interface for managing the wireless connectivity. To run this application using WiFi, you need: |
Yogesh Pande |
0:7d5ec759888b | 121 | |
Yogesh Pande |
0:7d5ec759888b | 122 | 1. An [ESP8266](https://en.wikipedia.org/wiki/ESP8266) WiFi module |
Yogesh Pande |
0:7d5ec759888b | 123 | 1. Updated [Espressif Firmware](https://developer.mbed.org/teams/ESP8266/wiki/Firmware-Update) |
Yogesh Pande |
0:7d5ec759888b | 124 | 1. Mount the WiFi module onto [K64F Grove Shield v2](https://developer.mbed.org/platforms/FRDM-K64F/#supported-seeed-studio-grove-extension) |
Yogesh Pande |
0:7d5ec759888b | 125 | 1. Attach the shield on the K64F board. |
Yogesh Pande |
0:7d5ec759888b | 126 | 1. In the `mbed_app.json` file, change |
Yogesh Pande |
0:7d5ec759888b | 127 | ```json |
Yogesh Pande |
0:7d5ec759888b | 128 | "network-interface": { |
Yogesh Pande |
0:7d5ec759888b | 129 | "help": "options are ETHERNET,WIFI,MESH_LOWPAN_ND,MESH_THREAD.", |
Yogesh Pande |
0:7d5ec759888b | 130 | "value": "WIFI" |
Yogesh Pande |
0:7d5ec759888b | 131 | } |
Yogesh Pande |
0:7d5ec759888b | 132 | ``` |
Yogesh Pande |
0:7d5ec759888b | 133 | |
Yogesh Pande |
0:7d5ec759888b | 134 | Provide your WiFi SSID and password here and leave `\"` in the beginning and end of your SSID and password (as shown in the example below). Otherwise, the example cannot pick up the SSID and password in correct format. |
Yogesh Pande |
0:7d5ec759888b | 135 | ```json |
Yogesh Pande |
0:7d5ec759888b | 136 | "wifi-ssid": { |
Yogesh Pande |
0:7d5ec759888b | 137 | "help": "WiFi SSID", |
Yogesh Pande |
0:7d5ec759888b | 138 | "value": "\"SSID\"" |
Yogesh Pande |
0:7d5ec759888b | 139 | }, |
Yogesh Pande |
0:7d5ec759888b | 140 | "wifi-password": { |
Yogesh Pande |
0:7d5ec759888b | 141 | "help": "WiFi Password", |
Yogesh Pande |
0:7d5ec759888b | 142 | "value": "\"Password\"" |
Yogesh Pande |
0:7d5ec759888b | 143 | } |
Yogesh Pande |
0:7d5ec759888b | 144 | ``` |
Yogesh Pande |
0:7d5ec759888b | 145 | |
Yogesh Pande |
0:7d5ec759888b | 146 | ### IP address setup |
Yogesh Pande |
0:7d5ec759888b | 147 | |
Yogesh Pande |
0:7d5ec759888b | 148 | This example uses IPv4 to communicate with the [mbed Device Connector Server](https://api.connector.mbed.com) except for 6LoWPAN ND and Thread. The example program should automatically get an IPv4 address from the router when connected over Ethernet. |
Yogesh Pande |
0:7d5ec759888b | 149 | |
Yogesh Pande |
0:7d5ec759888b | 150 | If your network does not have DHCP enabled, you have to manually assign a static IP address to the board. We recommend having DHCP enabled to make everything run smoothly. |
Yogesh Pande |
0:7d5ec759888b | 151 | |
Yogesh Pande |
0:7d5ec759888b | 152 | ### Changing socket type |
Yogesh Pande |
0:7d5ec759888b | 153 | |
Yogesh Pande |
0:7d5ec759888b | 154 | Your device can connect to mbed Device Connector via UDP or TCP binding mode. The default is UDP. The binding mode cannot be changed in 6LoWPAN ND or Thread mode. |
Yogesh Pande |
0:7d5ec759888b | 155 | |
Yogesh Pande |
0:7d5ec759888b | 156 | To change the binding mode: |
Yogesh Pande |
0:7d5ec759888b | 157 | |
Yogesh Pande |
0:7d5ec759888b | 158 | 1. In the `simpleclient.h` file, find the parameter `SOCKET_MODE`. The default is `M2MInterface::UDP`. |
Yogesh Pande |
0:7d5ec759888b | 159 | 1. To switch to TCP, change it to `M2MInterface::TCP`. |
Yogesh Pande |
0:7d5ec759888b | 160 | 1. Rebuild and flash the application. |
Yogesh Pande |
0:7d5ec759888b | 161 | |
Yogesh Pande |
0:7d5ec759888b | 162 | <span class="tips">**Tip:** The instructions in this document remain the same, irrespective of the socket mode you select.</span> |
Yogesh Pande |
0:7d5ec759888b | 163 | |
Yogesh Pande |
0:7d5ec759888b | 164 | ## Building the example |
Yogesh Pande |
0:7d5ec759888b | 165 | |
Yogesh Pande |
0:7d5ec759888b | 166 | To build the example application: |
Yogesh Pande |
0:7d5ec759888b | 167 | |
Yogesh Pande |
0:7d5ec759888b | 168 | 1. Clone [this](https://github.com/ARMmbed/mbed-os-example-client) repository. |
Yogesh Pande |
0:7d5ec759888b | 169 | 1. Open a command line tool and navigate to the project’s directory. |
Yogesh Pande |
0:7d5ec759888b | 170 | 1. Update mbed-os sources using the `mbed update` command. |
Yogesh Pande |
0:7d5ec759888b | 171 | 1. [Configure](#application-setup) the client application. |
Yogesh Pande |
0:7d5ec759888b | 172 | 1. Build the application by selecting the hardware board and build the toolchain using the command `mbed compile -m K64F -t GCC_ARM -c -j0`. mbed-cli builds a binary file under the project’s `.build` directory. |
Yogesh Pande |
0:7d5ec759888b | 173 | 1. Plug the Ethernet cable into the board if you are using Ethernet mode. |
Yogesh Pande |
0:7d5ec759888b | 174 | 1. If you are using 6LoWPAN ND or Thread mode, connect and power on the gateway first. |
Yogesh Pande |
0:7d5ec759888b | 175 | 1. Plug the micro-USB cable into the **OpenSDA** port. The board is listed as a mass-storage device. |
Yogesh Pande |
0:7d5ec759888b | 176 | 1. Drag the binary `.build/K64F/GCC_ARM/mbed-os-example-client.bin` to the board to flash the application. |
Yogesh Pande |
0:7d5ec759888b | 177 | 1. The board is automatically programmed with the new binary. A flashing LED on it indicates that it is still working. When the LED stops blinking, the board is ready to work. |
Yogesh Pande |
0:7d5ec759888b | 178 | 1. Press the **RESET** button on the board to run the program. |
Yogesh Pande |
0:7d5ec759888b | 179 | 1. For verification, continue to the [Monitoring the application](#monitoring-the-application) chapter. |
Yogesh Pande |
0:7d5ec759888b | 180 | |
Yogesh Pande |
0:7d5ec759888b | 181 | |
Yogesh Pande |
0:7d5ec759888b | 182 | ## Monitoring the application |
Yogesh Pande |
0:7d5ec759888b | 183 | |
Yogesh Pande |
0:7d5ec759888b | 184 | The application prints debug messages over the serial port, so you can monitor its activity with a serial port monitor. The application uses baud rate 115200. |
Yogesh Pande |
0:7d5ec759888b | 185 | |
Yogesh Pande |
0:7d5ec759888b | 186 | <span class="notes">**Note:** Instructions to set this up are located [here](https://developer.mbed.org/handbook/SerialPC#host-interface-and-terminal-applications).</span> |
Yogesh Pande |
0:7d5ec759888b | 187 | |
Yogesh Pande |
0:7d5ec759888b | 188 | After connecting, you should see messages about connecting to mbed Device Connector: |
Yogesh Pande |
0:7d5ec759888b | 189 | |
Yogesh Pande |
0:7d5ec759888b | 190 | ``` |
Yogesh Pande |
0:7d5ec759888b | 191 | In app_start() |
Yogesh Pande |
0:7d5ec759888b | 192 | IP address 10.2.15.222 |
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0:7d5ec759888b | 193 | Device name 6868df22-d353-4150-b90a-a878130859d9 |
Yogesh Pande |
0:7d5ec759888b | 194 | ``` |
Yogesh Pande |
0:7d5ec759888b | 195 | |
Yogesh Pande |
0:7d5ec759888b | 196 | <span class="notes">**Note:** Device name is the endpoint name you will need later on when [testing the application](https://github.com/ARMmbed/mbed-os-example-client#testing-the-application) chapter.</span> |
Yogesh Pande |
0:7d5ec759888b | 197 | |
Yogesh Pande |
0:7d5ec759888b | 198 | When you click the `SW2` button on your board you should see messages about the value changes: |
Yogesh Pande |
0:7d5ec759888b | 199 | |
Yogesh Pande |
0:7d5ec759888b | 200 | ``` |
Yogesh Pande |
0:7d5ec759888b | 201 | handle_button_click, new value of counter is 1 |
Yogesh Pande |
0:7d5ec759888b | 202 | ``` |
Yogesh Pande |
0:7d5ec759888b | 203 | |
Yogesh Pande |
0:7d5ec759888b | 204 | ## Testing the application |
Yogesh Pande |
0:7d5ec759888b | 205 | |
Yogesh Pande |
0:7d5ec759888b | 206 | 1. Flash the application. |
Yogesh Pande |
0:7d5ec759888b | 207 | 1. Verify that the registration succeeded. You should see `Registered object successfully!` printed to the serial port. |
Yogesh Pande |
0:7d5ec759888b | 208 | 1. On mbed Device Connector, go to [My devices > Connected devices](https://connector.mbed.com/#endpoints). Your device should be listed here. |
Yogesh Pande |
0:7d5ec759888b | 209 | 1. Press the `SW2` button on the device a number of times (make a note of how many times you did that). |
Yogesh Pande |
0:7d5ec759888b | 210 | 1. Go to [Device Connector > API Console](https://connector.mbed.com/#console). |
Yogesh Pande |
0:7d5ec759888b | 211 | 1. Enter `https://api.connector.mbed.com/endpoints/DEVICE_NAME/3200/0/5501` in the URI field and click **TEST API**. Replace `DEVICE_NAME` with your actual endpoint name. The device name can be found in the `security.h` file, see variable `MBED_ENDPOINT_NAME` or it can be found from the traces [Monitoring the application](https://github.com/ARMmbed/mbed-os-example-client#monitoring-the-application). |
Yogesh Pande |
0:7d5ec759888b | 212 | 1. The number of times you pressed `SW2` is shown. |
Yogesh Pande |
0:7d5ec759888b | 213 | 1. Press the `SW3` button to unregister from mbed Device Connector. You should see `Unregistered Object Successfully` printed to the serial port and the LED starts blinking. This will also stop your application. Press the `RESET` button to run the program again. |
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0:7d5ec759888b | 214 | |
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0:7d5ec759888b | 215 | |
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0:7d5ec759888b | 216 | ![SW2 pressed five times, as shown by the API Console](clicks.png) |
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0:7d5ec759888b | 217 | |
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0:7d5ec759888b | 218 | <span class="tips">**Tip:** If you get an error, for example `Server Response: 410 (Gone)`, clear your browser's cache, log out, and log back in.</span> |
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0:7d5ec759888b | 219 | |
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0:7d5ec759888b | 220 | <span class="notes">**Note:** Only GET methods can be executed through [Device Connector > API Console](https://connector.mbed.com/#console). For other methods check the [mbed Device Connector Quick Start](https://github.com/ARMmbed/mbed-connector-api-node-quickstart). |
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0:7d5ec759888b | 222 | ### Application resources |
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0:7d5ec759888b | 223 | |
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0:7d5ec759888b | 224 | The application exposes three [resources](https://docs.mbed.com/docs/mbed-device-connector-web-interfaces/en/latest/#the-mbed-device-connector-data-model): |
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0:7d5ec759888b | 225 | |
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0:7d5ec759888b | 226 | 1. `3200/0/5501`. Number of presses of SW2 (GET). |
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0:7d5ec759888b | 227 | 2. `3201/0/5850`. Blink function, blinks `LED1` when executed (POST). |
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0:7d5ec759888b | 228 | 3. `3201/0/5853`. Blink pattern, used by the blink function to determine how to blink. In the format of `1000:500:1000:500:1000:500` (PUT). |
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0:7d5ec759888b | 229 | |
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0:7d5ec759888b | 230 | For information on how to get notifications when resource 1 changes, or how to use resources 2 and 3, take a look at the [mbed Device Connector Quick Start](https://github.com/ARMmbed/mbed-connector-api-node-quickstart). |
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