利用藍牙低能量無線控制機器人小車

　　最新的藍牙4.2低能量（竹葉提取），也被稱為藍牙智能，是為物聯網（物聯網）。原生支持藍牙技術在每一個主要的操作系統，使移動應用程序開發方便。

　　利用PSoC Creator 3.2，Xcode 6和快速應用程序開發環境，應用程序可以用來處理一個簡單的遠程控制汽車使用iPhone，演示了關貿總協定的概況和間隙外設嵌入式BLE系統開發使用。汽車是由兩臺電動機和正交編碼器和Cypress半導體psoc4200 BLE設備H橋

　　Figure 1： The PSoC4200 from Cypress Semiconductor can be used to control a robot car using Bluetooth Low Energy 4.2.

　　The project starts with a simple LED and touch pad control that indicates the state of the connection. The initial CAPSense slider is used to control a red LED， with a blue LED for when the board is not connected.

　　Creating a new project for the PSoC4100 BLE， the components can be added to a simple schematic. The BLE component is added to the graphics design tool and linked to the CapSense component. A PWM is needed to drive the LEDs and because the blue LED is active low the PWM needs to be inverted， so a NOT gate is used from the library.