Sarah Marsh / Mbed OS U_Blox_DeviceConnector

Example of C027 with connector

Dependencies:   C027Interface

Fork of U_Blox_DeviceConnector by Suraj Pal

README.md@6:8fff223f3f84, 2016-08-02 (annotated)

Committer:
mbed_official
Date:
Tue Aug 02 10:00:21 2016 +0100
Revision:
6:8fff223f3f84
Parent:
5:b7d7ca715fdb
Child:
7:9a1ee269650b
Merge pull request #60 from hasnainvirk/master



Updating Docs for a reference to K64F-BR



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

Who changed what in which revision?

UserRevisionLine numberNew 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 1:e06e899acba6 60 First you need to select the RF driver to be used by 6LoWPAN/Thread stack.
Yogesh Pande 1:e06e899acba6 61
Yogesh Pande 1:e06e899acba6 62 For example Atmel AT86RF233/212B driver is located in https://github.com/ARMmbed/atmel-rf-driver
Yogesh Pande 1:e06e899acba6 63
Yogesh Pande 1:e06e899acba6 64 To add that driver to you application from command line, call: `mbed add https://github.com/ARMmbed/atmel-rf-driver`
Yogesh Pande 1:e06e899acba6 65
Yogesh Pande 1:e06e899acba6 66 Then you need to enable the IPV6 functionality as the 6LoWPAN and Thread are part of IPv6 stack. Edit the `mbed_app.json` file to add `IPV6` feature:
Yogesh Pande 1:e06e899acba6 67
Yogesh Pande 1:e06e899acba6 68 ```
Yogesh Pande 1:e06e899acba6 69 "target.features_add": ["CLIENT", "IPV6", "COMMON_PAL"],
Yogesh Pande 1:e06e899acba6 70 ```
Yogesh Pande 1:e06e899acba6 71
Yogesh Pande 0:7d5ec759888b 72 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 73
mbed_official 6:8fff223f3f84 74 **NOTE:** If you are using [k64f-border-router](https://github.com/ARMmbed/k64f-border-router) (which can be used only as a 6LoWPAN BR and only with FRDM-K64F), you need to enable another security feature. By default, k64f-border-router uses `PSK` as security. You can either enable security here on your mbed-os-example-client application, e.g.,
mbed_official 6:8fff223f3f84 75
mbed_official 6:8fff223f3f84 76 ```json
mbed_official 6:8fff223f3f84 77 "target_overrides": {
mbed_official 6:8fff223f3f84 78 "*": {
mbed_official 6:8fff223f3f84 79 "mbed-mesh-api.6lowpan-nd-security-mode": "PSK",
mbed_official 6:8fff223f3f84 80 }
mbed_official 6:8fff223f3f84 81 }
mbed_official 6:8fff223f3f84 82 ```
mbed_official 6:8fff223f3f84 83 or you can remove link layer security from k64f-border-router. For doing that, change the [mbed_app.json](https://github.com/ARMmbed/k64f-border-router/blob/master/mbed_app.json) fetched from k64f-border-router repository, e.g.,
mbed_official 6:8fff223f3f84 84
mbed_official 6:8fff223f3f84 85 ```json
mbed_official 6:8fff223f3f84 86 "config": {
mbed_official 6:8fff223f3f84 87 "security-mode": "NONE",
mbed_official 6:8fff223f3f84 88 }
mbed_official 6:8fff223f3f84 89 ```
Yogesh Pande 0:7d5ec759888b 90 #### mbed gateway
Yogesh Pande 0:7d5ec759888b 91
Yogesh Pande 0:7d5ec759888b 92 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 93
Yogesh Pande 0:7d5ec759888b 94 1. Use an Ethernet cable to connect the mbed 6LoWPAN gateway router to the internet.
Yogesh Pande 0:7d5ec759888b 95 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 96 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 97
Yogesh Pande 0:7d5ec759888b 98 * For the **6LoWPAN ND** bootstrap, use `gateway6LoWPANDynamic.bin`.
Yogesh Pande 0:7d5ec759888b 99 * For the **Thread** bootstrap, use `gatewayThreadDynamic.bin`.
Yogesh Pande 0:7d5ec759888b 100
Yogesh Pande 0:7d5ec759888b 101 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 102
Yogesh Pande 0:7d5ec759888b 103 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 104
Yogesh Pande 0:7d5ec759888b 105 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 106
Yogesh Pande 0:7d5ec759888b 107 #### Channel settings
Yogesh Pande 0:7d5ec759888b 108
Yogesh Pande 0:7d5ec759888b 109 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 110
Yogesh Pande 0:7d5ec759888b 111 ```json
Yogesh Pande 0:7d5ec759888b 112 "target_overrides": {
Yogesh Pande 0:7d5ec759888b 113 "*": {
Yogesh Pande 0:7d5ec759888b 114 "mbed-mesh-api.6lowpan-nd-channel-page": 0,
Yogesh Pande 0:7d5ec759888b 115 "mbed-mesh-api.6lowpan-nd-channel": 12,
Yogesh Pande 0:7d5ec759888b 116 "mbed-mesh-api.thread-config-channel-page": 0,
Yogesh Pande 0:7d5ec759888b 117 "mbed-mesh-api.thread-config-channel": 12
Yogesh Pande 0:7d5ec759888b 118 }
Yogesh Pande 0:7d5ec759888b 119 }
Yogesh Pande 0:7d5ec759888b 120 ```
Yogesh Pande 0:7d5ec759888b 121
Yogesh Pande 0:7d5ec759888b 122 For sub-GHz shields (AT86RF212B) use the following overrides, **6LoWPAN ND only**:
Yogesh Pande 0:7d5ec759888b 123
Yogesh Pande 0:7d5ec759888b 124 ```json
Yogesh Pande 0:7d5ec759888b 125 "mbed-mesh-api.6lowpan-nd-channel-page": 2,
Yogesh Pande 0:7d5ec759888b 126 "mbed-mesh-api.6lowpan-nd-channel": 1
Yogesh Pande 0:7d5ec759888b 127 ```
Yogesh Pande 0:7d5ec759888b 128
Yogesh Pande 0:7d5ec759888b 129 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 130
Yogesh Pande 0:7d5ec759888b 131 #### Thread-specific settings
Yogesh Pande 0:7d5ec759888b 132
Yogesh Pande 0:7d5ec759888b 133 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 134
Yogesh Pande 0:7d5ec759888b 135 ```json
Yogesh Pande 0:7d5ec759888b 136 "mbed-mesh-api.thread-device-type": "MESH_DEVICE_TYPE_THREAD_SLEEPY_END_DEVICE"
Yogesh Pande 0:7d5ec759888b 137 ```
Yogesh Pande 0:7d5ec759888b 138
Yogesh Pande 0:7d5ec759888b 139 ### Ethernet settings
Yogesh Pande 0:7d5ec759888b 140
Yogesh Pande 0:7d5ec759888b 141 For running the example application using Ethernet, you need:
Yogesh Pande 0:7d5ec759888b 142
Yogesh Pande 0:7d5ec759888b 143 - An Ethernet cable.
Yogesh Pande 0:7d5ec759888b 144 - An Ethernet connection to the internet.
Yogesh Pande 0:7d5ec759888b 145
Yogesh Pande 0:7d5ec759888b 146 ### Wi-Fi settings
Yogesh Pande 0:7d5ec759888b 147
Yogesh Pande 0:7d5ec759888b 148 The example application uses ESP8266 WiFi Interface for managing the wireless connectivity. To run this application using WiFi, you need:
Yogesh Pande 0:7d5ec759888b 149
Yogesh Pande 0:7d5ec759888b 150 1. An [ESP8266](https://en.wikipedia.org/wiki/ESP8266) WiFi module
Yogesh Pande 0:7d5ec759888b 151 1. Updated [Espressif Firmware](https://developer.mbed.org/teams/ESP8266/wiki/Firmware-Update)
Yogesh Pande 0:7d5ec759888b 152 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 153 1. Attach the shield on the K64F board.
Yogesh Pande 0:7d5ec759888b 154 1. In the `mbed_app.json` file, change
Yogesh Pande 0:7d5ec759888b 155 ```json
Yogesh Pande 0:7d5ec759888b 156 "network-interface": {
Yogesh Pande 0:7d5ec759888b 157 "help": "options are ETHERNET,WIFI,MESH_LOWPAN_ND,MESH_THREAD.",
Yogesh Pande 0:7d5ec759888b 158 "value": "WIFI"
Yogesh Pande 0:7d5ec759888b 159 }
Yogesh Pande 0:7d5ec759888b 160 ```
Yogesh Pande 0:7d5ec759888b 161
Yogesh Pande 0:7d5ec759888b 162 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 163 ```json
Yogesh Pande 0:7d5ec759888b 164 "wifi-ssid": {
Yogesh Pande 0:7d5ec759888b 165 "help": "WiFi SSID",
Yogesh Pande 0:7d5ec759888b 166 "value": "\"SSID\""
Yogesh Pande 0:7d5ec759888b 167 },
Yogesh Pande 0:7d5ec759888b 168 "wifi-password": {
Yogesh Pande 0:7d5ec759888b 169 "help": "WiFi Password",
Yogesh Pande 0:7d5ec759888b 170 "value": "\"Password\""
Yogesh Pande 0:7d5ec759888b 171 }
Yogesh Pande 0:7d5ec759888b 172 ```
Yogesh Pande 0:7d5ec759888b 173
Yogesh Pande 0:7d5ec759888b 174 ### IP address setup
Yogesh Pande 0:7d5ec759888b 175
Yogesh Pande 0:7d5ec759888b 176 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 177
Yogesh Pande 0:7d5ec759888b 178 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 179
Yogesh Pande 0:7d5ec759888b 180 ### Changing socket type
Yogesh Pande 0:7d5ec759888b 181
Yogesh Pande 0:7d5ec759888b 182 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 183
Yogesh Pande 0:7d5ec759888b 184 To change the binding mode:
Yogesh Pande 0:7d5ec759888b 185
Yogesh Pande 0:7d5ec759888b 186 1. In the `simpleclient.h` file, find the parameter `SOCKET_MODE`. The default is `M2MInterface::UDP`.
Yogesh Pande 0:7d5ec759888b 187 1. To switch to TCP, change it to `M2MInterface::TCP`.
Yogesh Pande 0:7d5ec759888b 188 1. Rebuild and flash the application.
Yogesh Pande 0:7d5ec759888b 189
Yogesh Pande 0:7d5ec759888b 190 <span class="tips">**Tip:** The instructions in this document remain the same, irrespective of the socket mode you select.</span>
Yogesh Pande 0:7d5ec759888b 191
Yogesh Pande 0:7d5ec759888b 192 ## Building the example
Yogesh Pande 0:7d5ec759888b 193
Yogesh Pande 0:7d5ec759888b 194 To build the example application:
Yogesh Pande 0:7d5ec759888b 195
Yogesh Pande 0:7d5ec759888b 196 1. Clone [this](https://github.com/ARMmbed/mbed-os-example-client) repository.
Yogesh Pande 0:7d5ec759888b 197 1. Open a command line tool and navigate to the project’s directory.
Yogesh Pande 0:7d5ec759888b 198 1. Update mbed-os sources using the `mbed update` command.
Yogesh Pande 0:7d5ec759888b 199 1. [Configure](#application-setup) the client application.
Yogesh Pande 0:7d5ec759888b 200 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 201 1. Plug the Ethernet cable into the board if you are using Ethernet mode.
Yogesh Pande 0:7d5ec759888b 202 1. If you are using 6LoWPAN ND or Thread mode, connect and power on the gateway first.
Yogesh Pande 0:7d5ec759888b 203 1. Plug the micro-USB cable into the **OpenSDA** port. The board is listed as a mass-storage device.
Yogesh Pande 0:7d5ec759888b 204 1. Drag the binary `.build/K64F/GCC_ARM/mbed-os-example-client.bin` to the board to flash the application.
Yogesh Pande 0:7d5ec759888b 205 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 206 1. Press the **RESET** button on the board to run the program.
Yogesh Pande 0:7d5ec759888b 207 1. For verification, continue to the [Monitoring the application](#monitoring-the-application) chapter.
Yogesh Pande 0:7d5ec759888b 208
Yogesh Pande 0:7d5ec759888b 209
Yogesh Pande 0:7d5ec759888b 210 ## Monitoring the application
Yogesh Pande 0:7d5ec759888b 211
Yogesh Pande 0:7d5ec759888b 212 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 213
Yogesh Pande 0:7d5ec759888b 214 <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 215
Yogesh Pande 0:7d5ec759888b 216 After connecting, you should see messages about connecting to mbed Device Connector:
Yogesh Pande 0:7d5ec759888b 217
Yogesh Pande 0:7d5ec759888b 218 ```
mbed_official 5:b7d7ca715fdb 219 Starting mbed Client example...
mbed_official 5:b7d7ca715fdb 220 Using <Network Interface>
mbed_official 5:b7d7ca715fdb 221
mbed_official 5:b7d7ca715fdb 222 Connected to Network successfully
mbed_official 5:b7d7ca715fdb 223 IP address xxx.xxx.xxx.xxx
mbed_official 5:b7d7ca715fdb 224
mbed_official 5:b7d7ca715fdb 225 SOCKET_MODE : UDP
mbed_official 5:b7d7ca715fdb 226 Connecting to coap://api.connector.mbed.com:5684
mbed_official 5:b7d7ca715fdb 227
Yogesh Pande 0:7d5ec759888b 228 ```
Yogesh Pande 0:7d5ec759888b 229
Yogesh Pande 0:7d5ec759888b 230 <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 231
Yogesh Pande 0:7d5ec759888b 232 When you click the `SW2` button on your board you should see messages about the value changes:
Yogesh Pande 0:7d5ec759888b 233
Yogesh Pande 0:7d5ec759888b 234 ```
Yogesh Pande 0:7d5ec759888b 235 handle_button_click, new value of counter is 1
Yogesh Pande 0:7d5ec759888b 236 ```
Yogesh Pande 0:7d5ec759888b 237
Yogesh Pande 0:7d5ec759888b 238 ## Testing the application
Yogesh Pande 0:7d5ec759888b 239
Yogesh Pande 0:7d5ec759888b 240 1. Flash the application.
Yogesh Pande 0:7d5ec759888b 241 1. Verify that the registration succeeded. You should see `Registered object successfully!` printed to the serial port.
Yogesh Pande 0:7d5ec759888b 242 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 243 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 244 1. Go to [Device Connector > API Console](https://connector.mbed.com/#console).
Yogesh Pande 0:7d5ec759888b 245 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 246 1. The number of times you pressed `SW2` is shown.
Yogesh Pande 0:7d5ec759888b 247 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.
Yogesh Pande 0:7d5ec759888b 248
mbed_official 5:b7d7ca715fdb 249 <span class="notes">**Note:** On non K64F boards, there is no unregistration functionality and button press is simulated through timer ticks incrementing every 15 seconds.</span>
Yogesh Pande 0:7d5ec759888b 250
Yogesh Pande 0:7d5ec759888b 251 ![SW2 pressed five times, as shown by the API Console](clicks.png)
Yogesh Pande 0:7d5ec759888b 252
Yogesh Pande 0:7d5ec759888b 253 <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>
Yogesh Pande 0:7d5ec759888b 254
Yogesh Pande 0:7d5ec759888b 255 <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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Yogesh Pande 0:7d5ec759888b 257 ### Application resources
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Yogesh Pande 0:7d5ec759888b 259 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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Yogesh Pande 0:7d5ec759888b 261 1. `3200/0/5501`. Number of presses of SW2 (GET).
Yogesh Pande 0:7d5ec759888b 262 2. `3201/0/5850`. Blink function, blinks `LED1` when executed (POST).
Yogesh Pande 0:7d5ec759888b 263 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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Yogesh Pande 0:7d5ec759888b 265 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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