HF2211透传数据的时候，是否携带了MAC地址，如果没有携带，需要如何设置。

Hello. Where can I download the SDK for the HF2211? On the HF2211 product page (http://www.hi-flying.com/wi-fi-iot/wi-fi-serial-server/rs232-rs485-rs422-to-wifi-serial-server) it says "Open SDK -- Products like embedded industrial computer has packaged SDK interface for users to do secondary development...". Can you please provide a link to the SDK download. Thanks!

HF2211能否设置为 modbus 从机？ 如何设置从机地址为2？

I'd like to upload HIS script to HF2211. I tried to upload it via IOTService3.0.03 App. HF2211 returned error code when I press "Read Device" 1. Open I.O.T Service App 2. Serial Config > Open Com > Read Device error : Getin Cmd Mode failed! Please let me know how can I upload my script to HF2211

您好，如何连接模块 HF2211 和 Google Cloud IoT Core？ 期待您的来信，非常感谢。

HF2211支持SDK开发吗？在哪下载SDK？