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How are packets sent to the MCU during an OTA upgrade of the MCU?

Last Updated on：2024-03-25 03:35:38

When you click Update in the app, the cloud will send an upgrade notification to the module. When the module receives the notification, the 0x0A upgrade command is sent to the MCU. Packets are obtained from the cloud based on the packet size defined by the MCU. Packets are transmitted one by one. The MCU processes packets obtained.