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indication的问题



我参考这个文档:

我参考YiKai Chen的建议,试着把SimpleBLEPeripheral的char4 (uuid:FFF4)改成indication,打开指示开关成功。

可是按下按键,还是提示发送失败。

我感觉可能打开指示开关有问题。

是不是不是0x3A啊。我不知道应该是几。请高手告诉我。谢谢