I'm planning to do OTA (Over the Air) using Azure for my Simcom 4G GSM connected(UART) stm32. The communication between device and azure is via GSM only. I have searched many platform for solution mostly I heard device twin. But is it possible to do using the above spec and components. Or any other way to approach the OTA. Note - For bin file storage I'm using blob storage.
So far I changed the json file in device twin using some reference "desired": { "otaupdate": bloblink, "version": 1.0 } but from GSM side i don't know how to approach.