Roman Mukhametov
case5
Dependencies: mbed SeeedShieldBot BluetoothSerial
Revision 0:469ef45c1fe2, committed 2021-09-15
- Comitter:
- roman360025
- Date:
- Wed Sep 15 15:08:26 2021 +0000
- Commit message:
- case5
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BluetoothSerial.lib Wed Sep 15 15:08:26 2021 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/yihui/code/BluetoothSerial/#f56002898ee8
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SeeedShieldBot.lib Wed Sep 15 15:08:26 2021 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/teams/components/code/SeeedShieldBot/#9fd1722259a1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Sep 15 15:08:26 2021 +0000
@@ -0,0 +1,64 @@
+#include "mbed.h"
+
+#define MQTT_MAX_PACKET_SIZE 400
+#define MQTT_MAX_PAYLOAD_SIZE 300
+
+void ibm_cloud_demo(NetworkInterface *net)
+{
+ TCPSocket socket;
+ MQTTClient client(&socket);
+
+ SocketAddress a;
+ char* hostname = "quickstart.messaging.internetofthings.ibmcloud.com";
+ net->gethostbyname(hostname, &a);
+ int port = 1883;
+ a.set_port(port);
+
+ printf("Connecting to %s:%d\r\n", hostname, port);
+
+ socket.open(net);
+ printf("Opened socket\n\r");
+ int rc = socket.connect(a);
+ if (rc != 0)
+ printf("rc from TCP connect is %d\r\n", rc);
+ printf("Connected socket\n\r");
+
+
+ MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
+ data.MQTTVersion = 3;
+ data.clientID.cstring = "d:quickstart:my_test:my_test_board";
+ data.username.cstring = "testuser";
+ data.password.cstring = "testpassword";
+ if ((rc = client.connect(data)) != 0)
+ printf("rc from MQTT connect is %d\r\n", rc);
+
+ MQTT::Message message;
+
+ char buf[MQTT_MAX_PAYLOAD_SIZE];
+ float temp = 1;
+ float press = 2;
+ float hum = 3;
+
+ sprintf(buf,
+ "{\"d\":{\"ST\":\"Nucleo-IoT-mbed\",\"Temp\":%0.4f,\"Pressure\":%0.4f,\"Humidity\":%0.4f}}",
+ temp, press, hum);
+ message.qos = MQTT::QOS0;
+ message.retained = false;
+ message.dup = false;
+ message.payload = (void*)buf;
+ message.payloadlen = strlen(buf);
+
+ char* topic = "iot-2/evt/my_event/fmt/json";
+
+ if( (message.payloadlen + strlen(topic)+1) >= MQTT_MAX_PACKET_SIZE )
+ printf("message too long!\r\n");
+
+ rc = client.publish(topic, message);
+ return;
+}
+
+
+nt main()
+{
+ ibm_cloud_demo(NetworkInterface *net);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Sep 15 15:08:26 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file