Comments (2)
The code that actually sends a message to IoT Hub is couple of lines above the loop:
if (IoTHubClient_LL_SendEventAsync(iotHubClientHandle, messageHandle, sendCallback, (void*)1) != IOTHUB_CLIENT_OK)
{
printf("failed to hand over the message to IoTHubClient");
}
else
{
printf("IoTHubClient accepted the message for delivery\r\n");
}
IoTHubMessage_Destroy(messageHandle);
If you would like to send more messages, you have to edit your code and send messages within the loop.
Take a look at the slightly modified code here. I am sending a message in the loop:
int sendCycle = 15;
while (1)
{
if(currentCycle >= sendCycle) {
currentCycle = 0;
unsigned char*buffer;
size_t bufferSize;
LogInfo("Sending RelayStateOne %d, RelayStateTwo %d\r\n", relay->RelayOneState, relay->RelayTwoState);
if (SERIALIZE(&buffer, &bufferSize, relay->DeviceId, relay->RelayOneState, relay->RelayTwoState) != CODEFIRST_OK)
{
LogInfo("Failed sending sensor value\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
}
IoTHubClient_LL_DoWork(iotHubClientHandle);
ThreadAPI_Sleep(1000);
currentCycle++;
}
the helper variable is just to be not too aggresive on the sends.
from azure-iot-arduino.
Thank you, @astaykov!
Your sample is much more simple and clear. IMHO should be included in library samples.
from azure-iot-arduino.
Related Issues (20)
- Missing internal header file HOT 1
- Failed to connect azure iot hub with esp8266 using azure-iot-arduino library HOT 1
- IoT Central example HOT 2
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- get_epoch_time in iothub_client_diagnostic.c throws errors HOT 1
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