利用蓝牙低能量无线控制机器人小车

　　利用蓝牙低能量无线控制机器人小车

　　最新的蓝牙4.2低能量（竹叶提取），也被称为蓝牙智能，是为物联网（物联网）。原生支持蓝牙技术在每一个主要的操作系统，使移动应用程序开发方便。

　　利用PSoC Creator 3.2，Xcode 6和快速应用程序开发环境，应用程序可以用来处理一个简单的远程控制汽车使用iPhone，演示了关贸总协定的概况和间隙外设嵌入式BLE系统开发使用。汽车是由两台电动机和正交编码器和Cypress半导体psoc4200 BLE设备H桥

　　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.