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[英]is there any limit, BLE peripheral devices for Services and their characteristic in iOS swift?
[英]Can we Change BLE MTU and characteristic sizes on iOS central and peripheral devices
我想要 MTU ATT 大小 247,但如果在我們的 BLE 硬件設備中將 MTU 大小設置為 24,則設備已連接,但如果我們將其更改為 247,則 iPhone 設備將不會與 BLE 硬件設備連接。 與 BLE 硬件設備連接的任何其他方式也是如此。
我的 iPhone 中的 maximumWriteValueLength 是 512
IOS 總是要求 MTU 為 185。因此,請確保您的外圍設備接受這一點。
如果您想使用 maximumWriteValueLength() 進行檢查,請確保您傳遞了 withoutResponse 類型。 否則,您總是得到 512,這是最大特征長度。
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