avr单片机atmega8系列定时器的使用测试程序，本程序为示例程序，适用于初学者...

利用L293D驱动步进电机，正转，反转，调速等-Make use of stepper motor driver L293D is transferred, reverse, speed control, etc.

at89c5131 实现 mass storage 的源码.-AT89C5131 realize the source mass storage.

单片机秒表课程设计-SCM stopwatch curriculum design

DTMF编码芯片HT9200的51接口程序。输入参数R2表示发送数据个数，输入数据与发送数据与DTMF码的关系:00H-0 01H-1 02H-2 03H-3 04H-4 05H-5 06H-6 07H-7 08H-8 09H-9 0AH-A 0BH-B 0CH-C 0DH-D 0EH-* 0FH-#。详细说明参考文件内-DTMF encoder chip HT9200 51 interface program. R2 said input parameters to send data distribution, data entry and send data with the DTMF code : 00H-0 01H- 02H-2 Mr- 3 in the 04H-4 05H-5 06H-6 07H-7 08H-8 7-9 0AH-A 0BH- 0CH B-C 0DH-D 0EH-* 0FH-#. Detailed information paper

THE USE OF74LS164 74LS164 74LS164 -THE USE OF74LS164 74LS16474LS16474LS16474LS164

AT89C2051驱动步进电机的电路和源码(用keilC51)-AT89C2051 stepper motor drive circuits and source code (using keilC51)

一个电子产品开发时的部分c代码C!绝对能用!-When an electronic product development part of c code C! Absolutely can!

智能计数器，对外部信号脉冲进行计数，并将脉冲个数显示出来。 基本要求：计数至少65536个脉冲，并将脉冲个数显示出来。 -intelligent counter, the external signal pulse counting, pulse number will be displayed. Basic requirements : at least 65,536 Count pulse, and pulse number displayed.

一个75HZ铃流实时检测程序，灵敏度很高，可以用于电话来电铃流检测。-a 75HZ bell flow real-time detection procedures, high sensitivity, can be used for phone calls Chu flow detection.

C8051f020单片机查表源程序-C8051f020 source SCM Lookup