Tag Archives: IoT

How to remove records from Cosmos DB

There is no direct way how to remove a bunch of records from Cosmos DB. Simple query like DELETE * FROM c where c.IoTHub.ConnectionDeviceId != "VariablSpeedDrivesSimulator_test" doesn’t work. But workaround exists. You should create a stored procedure bulkDeleteSproc: /** * … Continue reading

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Inexpensive Modbus RTU to Modbus TCP Elfin EW-11 Wi-Fi converter (RS485)

Modbus RTU (RS485 interface) to Modbus TCP converters from the top producers like Moxa, Advantech, Schneider, ABB and etc. are quite expensive. Of course, the quality and reliability of these industrial devices are really very high. Sometimes the most important parameter … Continue reading

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Azure IoT Solutions. Stopping/starting Azure IoT related services to cut costs.

After installing Azure IoT Solutions (free trial) in a couple days you’ll realize that IoT related services permanently consume your money and there is no easy way (the one button) how to manage this. Money just dries up. But, it’s … Continue reading

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