tempratrue

STC1256xxAD系列MCU实现8路PT100温度巡回检查程序，温度过高或过低报警。(STC1256xxAD Series MCU achieve 8 PT100 temperature roving inspection procedures, high or low temperature alarm.)

利用51单片机（AT89S52）的P1口对8位数码管的段位进行控制，用P2口对8位数码管的位数进行控制。(P1 port 51 microcontroller (AT89S52) control with 8 digital tube Dan P2 port to control the number of bits of the 8-bit digital tube)

说明：  就AD9850的电路图以及串行并行的程序代码(On the circuit diagram of AD9850 and the program code of serial parallel)

说明：  开机的时候先检测 24C02 是否存在，然后在主循环里面检测两个按键，其中 1 个按键（KEY1） 用来执行写入 24C02 的操作，另外一个按键（KEY0） 用来执行读出操作，在 TFTLCD 模块上显示相关信息。同时用 DS0 提示程序正在运行。(When booting, it first detects the existence of 24C02, and then detects two keys in the main loop. One key (KEY1) is used to write 24C02, and the other key (KEY0) is used to read out, displaying relevant information on the TFTLCD module. At the same time, the DS0 prompt program is running.)

说明：  该抢答器供不多于4个参赛队或者个人的抢答比赛场合使用。每个参赛队的座位前 安装1只抢答按钮开关（用板上的S9、S10、S11、S12）和一个信号灯（D4、D5、D6、D7）。 主持人座位前装一只复原开关（板上S3）、1只蜂鸣器（板上BUZ1）和一个抢答器工作状态 指示灯（D10),每当主持人口头发出号令之后.哪个队先按下座位上的按钮开关,该座位的信 号灯就先被点亮,同时封锁其他按钮开关的活动.并且熄灭主持人座位上的状态指示灯和发出 三声类似于电话振铃的提示声,以声明此次抢答动作已经完成.在主持人确认后,按下复原按钮 ,状态指示灯重新点亮,并且同时发出"笛-笛-"声,为下一次抢答作好准备.(the Responder for up to four teams or individuals in the use of Responder competition occasions. Every team installed the seats before a Responder button switch (with the board S9, S10, S11, S12), and a signal (D4, D5, D6, D7). Moderator seats installed before a recovery switch (S3 board), a buzzer (BUZ1 board) and a Responder work status indicators (D10), whenever the moderator after oral orders issued. Which team first press of a button switches, the seat lights were lit on the first, while the blockade of the other button to switch activities. Moderator seats and extinguished the lights and the state issued three sound similar to the telephone tips ringing sound, in a statement this Responder action has been completed. the presenters confirmed? recovery button, status indicators re-lit,)

NEC协议的红外遥控器解码程序，程序占用资源少，在51等单片机上验证OK。(ir decode for NEC protocal.)

nrf preview dev kit Please read your package and describe it at least 40 bytes in English

汉字显示字库及程序源码14*16标准字库(Chinese display font and procedures source code 14* 16 standard font)

s51单片机控制程序，流水灯，蜂鸣器，数码管，a/d,d/a转换等(s51 MCU control procedures, flowing light, buzzer, the digital control, a/d and d/a conversion)

使用stm32驱动SG90舵机 实现正反转 程序不是特别难 一看就能看懂(Using the STM32 driver SG90 actuator to achieve positive inversion procedure is not particularly difficult to see to understand)