translation.en: For this, I had to expand upon my knowledge of coding with Java and XCode and I also had to learn about how to code for Bluetooth low energy devices by watching YouTube tutorials and reading various textbooks.
translation.zh: 为此，我需要在Java和XCode基础上继续探索 并自学了如何用代码去操纵蓝牙低功耗设备 为此我看了很多的YouTube视频，翻了很多书