with the serial download isp

1820测温功能 1820测温 输出数字信号 由IO口输入单片机-1820 temperature measurement function 1820 output digital signal input from the IO port Singlechip

用单片机播放音乐的源码并提供相应的音乐制作工具 -MCU-source music player and music production provided by the corresponding instrument

此中含有单片机开发实例，包括电路图及C语言源程序，希望能对单片机开发爱好者有用！-There is a world that contains examples of single-chip development, including the circuit diagram and the C language source code, hoping to be useful for single-chip development enthusiasts!

在微机上模拟I2C总线的设计中，用并行口的D0（PIN2）模拟SCL信号，用D1（PIN3）模拟SDA信号。根据IIC总线的电平规范 -Computer simulation on the design of I2C bus with a parallel port D0 (PIN2) Analog SCL signal, with D1 (PIN3) Analog signal SDA. According to the IIC bus specification level

超声波测距的源代码，已以SPCE61上调试通过。-Ultrasonic Distance Measurement of source code, has been adopted SPCE61 debugging.

C51单片机通过红外通信实现PC键盘的无线通信 读取与显示具体细节请参考源程序将时钟线接入外部中断数据线接入普通I/O输入输出口-C51 microcontroller through infrared communications PC wireless keyboard and display read details please refer to the source clock line access external interrupt data lines access I/O input and output mouth

利用SPCE061A实现中文输入,必要时可适当删减-use SPCE061A achieve input and, if necessary, can be properly cut

51单片机实现的温度测量、AD转换，温度传感器采用DS18B20，显示采用1602LCD屏，报警采用蜂鸣器。-。-51 MCU temperature measurement, police procedures, the use of temperature sensor DS18B20, showed that the use of 1602LCD screen, using buzzer alarm.

一个sonix的仿51单片机指令macro,在写汇编时超好用，可读性超强-Sonix 51 imitation of a single-chip instruction macro, in writing, when the compilation超好用, readability Superacid

急救车与交通灯）（1）南北与东西方向，每个方面由红黄绿三个灯控制（2）南北向：　红（30秒），黄（5秒），绿（25秒）　　　东西向： 红（35秒），黄（5秒），绿（25秒）　　　上述基本参数可以根据实际情况自行调整，灯的变化规律与实际路口规律相同，绿灯在最后5秒钟时，黄灯亮，然后红灯亮，不允许两个方面同时亮绿灯。（3）绿灯的时间显示在数码管上进行显示。（4）可以通过一个开关控制，当开关信号为0时，整个交通灯全灭提高要求：（1）设计一个紧急控制开关信号，当紧急开关信号为1时，两个方向的灯全为红灯。紧急开关撤消后，按照开关按下之前的状态继续运行（其参数要保存）。（2）设计一个夜间行车开关，当开关按下后，两个方向都只有黄灯闪烁，其它灯熄灭。（3）设计两个方向的亮时时间可调。-emergency vehicles and traffic lights) (1) North and South and east-west direction, each with three yellow-green from red lights control (2) to the north and south : red (30 seconds), yellow (5 seconds), Green (25 seconds) to things : red (35 seconds), yellow (5 seconds) Green (25 seconds) above basic parameters can be adjusted to the actual situation, the light changes with the actual law of the same intersection, the green light in the final five seconds, the yellow light is on, and then a red light, bright, not two fronts simultaneously bright green. (3) the green light at the time displayed on the digital display control. (4) can be controlled by a