D/A7513可以用于调试 1602显示器

16位计数及激光测距仪的源程序,C源代码,对学习有很好的参考价值.-16 counts and laser rangefinders of the source, C source code, to learn a good reference value.

8051单片机系统中对DISKONCHIP的操作-8051 single-chip microcomputer system for the operation of DiskOnChip

用于arm开发，keil开发环境-arm for the development, Keil development environment

著名的CS5463抄表模块，带无功计算。-CS5463 well-known meter reading module, with the calculation of reactive power.

在电子技术中，频率是最基本的参数之一，又与许多电参量的测量方案、测量结果都有十分密切的关系，因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速，以及便于实现测量过程自动化等优点，是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计，并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门，通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率，最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求，而且具有了单片机的稳定性和成熟性，且控制能力强，是一种低成本，高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct

环境测试仪的设计。该计环境测量系统能够充分发挥人性化的特质，利用SPCE061A的语音功能，配合传感器模组，实现带语音播报功能的环境测试。-Environment tester design. The measurement system of the environment can give full play to human characteristics, the use of SPCE061A voice functions, with the sensor module, realize voice broadcast function with environmental testing.

51单片机的最小系统版，带串口，ds1302，1602,ds18b20,键盘，数码管，ISP在线下载-51 SCM minimum system version, with serial, ds1302, 1602, ds18b20, keyboards, digital tube, ISP online download

完整的实现RS232与TCP/IP网络协议的转换-Realize the full RS232 and TCP/IP network protocol conversion

赛普拉斯CY68300开发板的详细资料及原理图、源程序-plate ware development CY68300 detailed information and drawings, source code