如何使Stm32 Lorawan设备订阅AWS IOT主题
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【以下的问题经过翻译处理】 我已经将STM32WL设备连接到AWS IOT，并在主题lorawan下发布数据。
- 我该如何让Lorawan设备订阅主题，以便以后我可以将数据发布到那个主题，让Lorawan设备接收数据？
- 我如何通过发布到AWS主题向Lorawan设备发送下行数据？
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【以下的回答经过翻译处理】 你好，Tuan Anh。LoRaWAN设备无法连接到AWS IoT Core的MQTT代理。因此，STM32WL设备无法直接订阅MQTT主题。
LoRaWAN下行消息可以使用控制台、CLI和API（以及SDK）发送。
- https://docs.aws.amazon.com/iot/latest/developerguide/connect-iot-lorawan-downlink-queue.html
- https://docs.aws.amazon.com/cli/latest/reference/iotwireless/send-data-to-wireless-device.html
- https://docs.aws.amazon.com/iot-wireless/2020-11-22/apireference/API_SendDataToWirelessDevice.html
- https://boto3.amazonaws.com/v1/documentation/api/latest/reference/services/iotwireless.html#IoTWireless.Client.send_data_to_wireless_device
你可能会发现以下工作坊对你有用：https://catalog.us-east-1.prod.workshops.aws/workshops/b95a6659-bd4f-4567-8307-bddb43a608c4/en-US。 ST Nucleo-WL55JC是受支持的设备：https://catalog.us-east-1.prod.workshops.aws/workshops/b95a6659-bd4f-4567-8307-bddb43a608c4/en-US/300-device/150-examples。
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