CYGNAL microcontroller, C8051FXXX routines 4

上车按键后开始计价。有实时时钟、单价、距离和总价钱显示。可以通过键盘修改单价（元/公里）和时间。有清除键用以清楚上次费用。利用LCD分别显示时间、单价、路程和费用。LED辅助显示说做操作。-Button on the bus after the valuation. Real-time clock, unit price, distance, and the total price display. You can modify the keyboard unit price (yuan/km) and time. There is the clear key to clear the last cost. Respectively, using LCD displays time, price, distance and cost. LED auxiliary display saying that operation.

无线NRF905(PTR8000模块)源程序+原理图DDB+图片 环境：ICCAVR MEGA16L＋11.0592M 讯通的PTR8000和PTR8000+模块，内部芯片是nrf905 SPI方式操作，有详细注析 -Wireless NRF905 (PTR8000 module) source+ schematics DDB+ picture environment: ICCAVR MEGA16L+11.0592 M RoadShow" s PTR8000 and PTR8000+ module, internal chip is nrf905 SPI mode operation, a detailed analysis of injection

详细介绍RS-485/422原理与区别、元件选择、参考电路、通讯规约、程序设计等方面的应用要点，以及在产品实践中总结出的一些经验、窍门-Detail the difference between theory and RS-485/422, component selection, reference circuits, communications statute, procedures for the application of design elements, as well as practice in the products sum up the experience, know-how

LED数码管的简单控制程序，7彩变化。有按键可以选择模式。-LED digital tube simple control procedures, 7 color change. Button has the option mode.

简单实用的51串口波特率计算器。- Simple practical 51 string mouths baud rate calculator.

单片机USB接口驱动,适用于AT89C51SND1C-SCM USB drive, applicable to AT89C51SND1C

该程序用msp430单片机开发了一款单相电子式多费率电能表，用IAR开发的，已通过测试-MSP430 single chip microcomputer with the program developed a single-phase electronic multi-rate watt-hour meter, using IAR developed has been tested

用89s52,访问ZLG7290(LED数码显示)-By 89s52, visit ZLG7290 (LED digital display)

51单片机ds1302驱动程序，肯定是好地-51 drivers, is certainly well

CC2430 基础实验二 按键控制开关实验-CC2430 experimental basis experiment 2 button control switch