FreeRTOS是2014,、4、22下载的，并附有uc/osII和uc/osIII源码，方便广大embedded os学者学习。-FreeRTOS is 2014, 4,22 downloaded, along with uc/osII and uc/osIII source to facilitate the majority of embedded os scholars to study.

STM32F204 多功能串口转USB, 串口接收和发送都使用DMA, USB 为HID模式。操作系统使用uCOS--STM32F204 multifunction serial to USB, serial port used to receive and transmit DMA, USB for HID mode. The operating system uses uCOS-III

nrf51822 2.4g模块+uart+radio收发-nrf51822 2.4g+ uart+ radio transceiver module