Rakesh Panchal
Published © GPL3+

Windmill Monitor Using Azure MT 3620 and Azure IoT Central

Actual values of temperature, pressure and simulated values of rotation speed, power, wind speed. Alerts when rotation speed limit exceeds.

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Windmill Monitor Using Azure MT 3620 and Azure IoT Central

Things used in this project

Hardware components

Azure Sphere MT3620 Starter Kit
Avnet Azure Sphere MT3620 Starter Kit
×1

Software apps and online services

Microsoft Azure
Microsoft Azure

Story

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Schematics

Azure MT 3620

Code

i2c.c

C/C++
Modify telemetry message.
#if (defined(IOT_CENTRAL_APPLICATION) || defined(IOT_HUB_APPLICATION))

	// We've seen that the first read of the Accelerometer data is garbage.  If this is the first pass
	// reading data, don't report it to Azure.  Since we're graphing data in Azure, this data point
	// will skew the data.
	if (!firstPass) {

		// Allocate memory for a telemetry message to Azure
		char* pjsonBuffer = (char*)malloc(JSON_BUFFER_SIZE);
		if (pjsonBuffer == NULL) {
			Log_Debug("ERROR: not enough memory to send telemetry");
		}

		// Here taking simulated Power and Speed. Can be integrated in future with the turbine system and wind sensor
		float simulatedPowerkW = 120, simulatedWindSpeedMps = 0.56, simulatedRPM = 18;

		// construct the telemetry message
		snprintf(pjsonBuffer, JSON_BUFFER_SIZE, "{\"gX\":\"%.4lf\", \"gY\":\"%.4lf\", \"gZ\":\"%.4lf\", \"pressure\": \"%.2f\", \"temperature\": \"%.2f\", \"aX\": \"%4.2f\", \"aY\": \"%4.2f\", \"aZ\": \"%4.2f\", \"powerkW\": \"%4.2f\", \"windspeedMps\": \"%4.2f\", \"RPM\": \"%4.2f\"}",
			acceleration_mg[0], acceleration_mg[1], acceleration_mg[2], pressure_hPa, lps22hhTemperature_degC, angular_rate_dps[0], angular_rate_dps[1], angular_rate_dps[2], simulatedPowerkW, simulatedWindSpeedMps, simulatedRPM);

		Log_Debug("\n[Info] Sending telemetry: %s\n", pjsonBuffer);
		AzureIoT_SendMessage(pjsonBuffer);
		free(pjsonBuffer);

	}

	firstPass = false;

Credits

Rakesh Panchal

Rakesh Panchal

2 projects • 1 follower

Comments

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