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xianlutongduanqi
线路通断检测器的设计：
1．用压电陶瓷蜂鸣片作为电声元件。
2．用两根导线作为测试探针
3．线路通断是通过测试电阻的大小来判断，有以下三种情况：
（1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。
（2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。
以上各临界阻值（150Ω和900Ω），允许误差±10％
4．＋15V直流稳压电源需要设计。
(Line-off detector design:
1. Piezoelectric ceramic buzzer as the electro-acoustic components.
2. As a test probe with two wires
3. Lines off by testing the resistance to determine the size, the following three conditions:
(1) If 150Ω <Rx <900Ω, the buzzer is not audible.
(2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound.
Above the critical resistance (150Ω and 900Ω), tolerance ± 10
4.+15 V DC power supply need to design.
)
- 2011-06-19 21:49:39下载
- 积分：1
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A7106_ok
STM8控制A7106模块收发程序，发送、接收分为两个工程(STM8 control A7106 transceiver module program, sending, receiving two engineering)
- 2020-06-29 06:40:01下载
- 积分：1
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yjp2.0
这是一个能生成C程序代码的软件，用来编写液晶屏上的内容非常方便。(This is a program that generates C source software, used to write the contents on the LCD screen is very convenient.)
- 2011-01-25 17:44:15下载
- 积分：1
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Electronic-cipher-lock
实现一基于单片机的电子密码锁的设计,电子密码锁的设计主要由三部分组成：矩阵键盘接口电路、密码锁的控制电路、最小系统。另外系统还有LED提示灯，报警蜂鸣器等。(Realization of a microcontroller based electronic password lock design, the design of electronic password lock consists of three parts: matrix keyboard interface circuit, password lock control circuit, the minimum system. In addition, the system also has LED tips, alarm buzzer, etc..)
- 2016-11-08 15:51:11下载
- 积分：1
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ADC DMA 串口发
说明： STM32_ADC+DMA功能代码，测试可用(STM32F407+ADC+DMA CODE)
- 2020-07-15 09:05:28下载
- 积分：1
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Voltmeter_0-5V_AVR
VOLTMER IN AVR SERIES ATMEGA 0-5V
- 2016-11-27 21:54:10下载
- 积分：1
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5kwPOWER
5KW 逆变电源原理图。可以直接做PCB(5KW power inverter schematic. Can directly do the PCB)
- 2012-06-05 21:20:43下载
- 积分：1
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MPPTsollarpanel
基于AVR单片机的MPPT程序（爬山法），非常好用！(AVR microcontroller based MPPT program (hill climbing), very easy to use!)
- 2014-06-22 20:35:58下载
- 积分：1
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EM4095
采用STC89C51编写的125K射频卡阅读器程序，采用EM4096基站芯片。(125K RF using STC89C51 written card reader program, the the EM4096 base station chip.)
- 2012-07-12 10:05:19下载
- 积分：1
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adc
说明： TM4C123GH6PM ADC采样，uart输出成功实例(Successful example of tm4c123gh6pm ADC sampling and UART output)
- 2020-04-16 22:25:36下载
- 积分：1
