温度传感器和51单片机开发的温度检测系统源代码-Temperature sensors and the development of 51 single-chip temperature detection system source code

pwm 调制程序，，参考一下，采用51单片机开发，觉得有用就下载吧-pwm modulation procedures, refer to

侯工单片机工作室，S3C2440 Bootloader之一，用于学习参考，也可用于工程开发。www.51-arm.com-Hou workers microcontroller studio, S3C2440 Bootloader one for learning reference, can also be used for engineering development. www.51-arm.com

TI开发板AM3517控制步进电机的程序，如果从51单片机过渡到高级MCU感觉无从下手的可以参考下-TI AM3517 board stepper motor control procedures, if the transition 51 to advanced microcontroller MCU can not start feeling under reference