此程序是430系列恒流源程序。对初学者很有帮助。

805X语言下的SLE4428读写卡子程序,含密码校验-805X SLE4428 logic of language literacy cards subroutine, with password verification

一个单片机温度控制的完整程序-a complete temperature control procedures

gsm短消息报警程序，与硬件配合，完成开关量输入，短消息通知主人，用于防盗报警系统。-Short Message gsm alarm procedures, and hardware with complete switch input, short message to inform the owner for the anti-theft alarm system.

单片机小工具（实用） 可以用来做单片机的开发工具，很实用的-Small single-chip tool (utility) can be used to make single-chip development tools, it is useful

两个7段共阳LCD显示器，可以调整倒计时时间-A total of two 7-yang LCD display, you can adjust the countdown time

SPI是一个环形总线结构，由ss（cs）、sck、sdi、sdo构成，其时序其实很简单，主要是在sck的控制下，两个双向移位寄存器进行数据交换。 假设下面的8位寄存器装的是待发送的数据10101010，上升沿发送、下降沿接收、高位先发送。 那么第一个上升沿来的时候 数据将会是sdo=1；寄存器=0101010x。下降沿到来的时候，sdi上的电平将所存到寄存器中去，那么这时寄存器=0101010sdi，这样在8个时钟脉冲以后，两个寄存器的内容互相交换一次。这样就完成里一个spi时序。 -SPI bus is a ring structure, by ss (cs), sck, sdi, sdo composition, its timing is actually very simple, mainly under the control of the sck and two bi-directional shift register for data exchange. Assuming the following 8-bit register is loaded to send the data to be 10,101,010, rising to send, receive falling edge, high first sent. Well, the first rising edge to the time data will be sdo = 1 register = 0101010x. Falling edge comes, sdi on the level will be stored to the register, then register at this time = 0101010sdi, so 8 clock pulse later, the contents of two registers to exchange time. This will be completed in a spi timing.

能够检测温度，并设置报警温度，界面由1602LCD显示-Able to detect temperature, and set the alarm temperature, the interface displayed by the 1602LCD

可以将单片机与继电器以及温度传感器结合实现温度自动控制系统.例如可以用单片机显示温度传感器测到的温度,还可以在温度到达一定界限时控制继电器的通断以达到控制电路通断的效果.-Can be single-chip temperature sensor and relay, as well as realize automatic temperature control system combined. For example, we can use single-chip temperature sensor measured the temperature, but also the temperature has reached a certain limit of the on-off control relay control circuit in order to achieve on-off effect.

AT24C256是ATMEL公司256kbit串行电可擦的可编程只读存储器，8引脚双排直插式封装，具有结构紧凑、存储容量大等特点，可以在2线总线上并接4片该IC，特别适用于具有高容量数据储存要求的数据采集系统。本文将介绍该IC的工作原理和与单片机的软硬件接口。-ATMEL Corporation AT24C256 is 256kbit serial electrical erasable programmable read-only memory, 8-pin double-line package, has a compact structure, characterized by large storage capacity can be 2-wire bus, and then 4 the IC, is especially suitable for high-capacity data storage requirements of the Data Acquisition System. This article will introduce the working principle of the IC and single-chip hardware and software interface.

3510基于avr的测试程序 建议连接方式： 开发环境：Winavr 版本 ：1.0 MCU ：Mega16 晶振 ：8M 调试环境：AVR Studio-3510 based on the proposed test procedures avr connection: Development Environment: Winavr version: 1.0MCU: Mega16 crystal: 8M debugging environment: AVR Studio