IBM Watson IoT
Sample Client Code that showcases how to use IBMIoTF client library to connect the mbed FRDM-K64F device to the IBM Internet of Things Cloud service in registered mode.
Dependencies: IBMIoTF
Here are the instructions to use this Client Sample:
- Get the program either in online compiler / local to the system
- Edit main.cpp to update the below pasted lines to contain correct Watson IoT Platform configuration:
char *orgId = "OrganizationID";
char *deviceType = "DeviceType";
char *deviceId = "DeviceID";
char *method = "token";
char *token = "DeviceToken";
- Save the changes and compile to get binary
- Deploy obtained binary onto FRDM K64F board and press reset button to start execution of the program
- Use any of the suitable terminal utility (screen in MAC OS) to see the log statements printed onto console by the Client Sample
- By default, the client sample after establishing secure connection to Watson IoT Platform, publishes 10 device events at the interval of 3 seconds and terminates
- Client sample subscribes to receive the device commands as well, one can try sending device commands using application, we should see a statement being dumped from processCommand callback on the console before termination of sample
Revision 0:3caca8fc3cd2, committed 2017-05-31
- Comitter:
- lokeshhk
- Date:
- Wed May 31 06:13:55 2017 +0000
- Commit message:
- SSL Client sample using IBMIoTF Client Library
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/IBMIoTF.lib Wed May 31 06:13:55 2017 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/teams/IBM_IoT/code/IBMIoTF/#5f037f24ce29
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed May 31 06:13:55 2017 +0000
@@ -0,0 +1,78 @@
+/*******************************************************************************
+ * Copyright (c) 2017 IBM Corp.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and Eclipse Distribution License v1.0 which accompany this distribution.
+ *
+ * The Eclipse Public License is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ * and the Eclipse Distribution License is available at
+ * http://www.eclipse.org/org/documents/edl-v10.php.
+ *
+ * Contributors:
+ * Lokesh K Haralakatta Initial implementation
+ *******************************************************************************/
+#include "DeviceClient.h"
+#include "Command.h"
+using namespace IoTF;
+
+// Callback Method to process the received command by the device
+void processCommand(IoTF::Command &cmd)
+{
+ printf("Command received name: %s, payload: %s\r\n", cmd.getCommand(), cmd.getPayload());
+}
+
+int main() {
+
+ // Set Watson IoT Platform connection parameters
+ // Update the below parameters with actual values before build and execution of sample
+ char *orgId = "OrganizationID"; // Replace with correct organization ID
+ char *deviceType = "DeviceType"; // Replace with correct device type as registered on WIoTP
+ char *deviceId = "DeviceID"; // Replace with correct device ID as registered on WIoTP
+ char *method = "token"; // Retain this as token for authentication method
+ char *token = "DeviceToken"; // Replace with device token as obtained from WIoTP
+ int port = 8883; // Secure port can be either 8883 or 443
+
+ // Create DeviceClient Instance using above connection parameters
+ DeviceClient *client = new DeviceClient(orgId,deviceType,deviceId,method,token,port);
+
+ // Call Device Client connect method to establish secure connection to Watson IoT Platform
+ if(client->connect()){
+ //Device Client Connected to Watson IoT Platform
+ printf("Client Connected to WIoTP\r\n");
+
+ //Subscribe to device commands with CMD Callback to process the received command
+ client->setCommandCallback(processCommand);
+
+ // Create buffer to hold the event
+ char buf[50];
+ int count = 0;
+ sprintf(buf,"{\"d\":{\"temp\":\"35\"}}");
+
+ // Keep publishing the 10 device events for every 3 seconds
+ while(1){
+ client->publishEvent("evt", buf);
+ wait(3);
+ count++;
+ if(count == 10)
+ break;
+ }
+
+ // Disconnect Device Client from WIoTP if still in connected state
+ if(client->isConnected()){
+ printf("Disconnecting the client from server...\r\n");
+ client->disconnect();
+ }
+ else
+ printf("Client already disconnected from server...\r\n");
+ }
+ else
+ printf("Client Not Connected to WIoTP\r\n");
+
+ //Release resources allocated to Device Client
+ delete client;
+
+ printf("!!! Done !!!\r\n");
+ return 0;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed_app.json Wed May 31 06:13:55 2017 +0000
@@ -0,0 +1,3 @@
+{
+ "macros": ["MBEDTLS_USER_CONFIG_FILE=\"mbedtls_custom_config.h\""]
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbedtls_custom_config.h Wed May 31 06:13:55 2017 +0000 @@ -0,0 +1,1 @@ +#define MBEDTLS_SHA1_C \ No newline at end of file