这是通道控制用的闸机源码，已在多家公园景区机关院校使用．...

PS2Key.c键盘扫描+液晶1602显示-PS2Key.c keyboard scan+ LCD display 1602

使用51模拟I2C总线对CH450完成对6位LED数码管显示的操作。使用LED驱动芯片可分担51的工作量。-The use of 51 analog I2C bus on the CH450 completed six LED digital tube display operation. The use of LED Driver IC 51 may share the workload.

PALM 上的城管管理系统,具有拍照录音等功能-PALM administration on the management system, with cameras recording function

三星ARM9 s3c2410 usb device开发 ，实现HID鼠标功能 USB_device_lib.c: usb设备库函数 USB_device_config.c usb设备鼠标配置，配置描述符，接口描述符，类描述等，接USB控制传输。 USB_device.c usb设备鼠标主代码 。-Samsung ARM9 s3c2410 usb device development, HID achieve USB_device_lib.c mouse functions : usb equipment library functions USB_device_config.c usb mouse equipment configuration, descriptors configuration, interface descriptors, description, USB access control transmission. USB_device.c usb mouse main code equipment.

I2C位碰撞

Linux下用C来操作gsm modem, 初始化gsm modem.-Linux using C to operate the gsm modem, initialize gsm modem.

LED灯和数字键。以不同的速度使用闪光灯。用四个led灯显示4位计数器。

nand―flash source--nand―flash source.

用stm32做的GPS+GPRS驱动,可以用在物联网行业,实实在在的源代码,非常有用,修修改改就可以成你的代码了...

FreeRTOS source code as bundled with the book "Using FreeRTOS Real-Time Kernel - A Practical Approach"-FreeRTOS source code as bundled with the book "Using FreeRTOS Real-Time Kernel- A Practical Approach"