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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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static-I
恒流电子负载，运用DA可控恒流值，步进10毫安，范围100毫安至1安，并用AD采样，送入LCD显示(Constant current electronic load, using DA controlled current value, step 10 mA, 100 mA range to 1 A, and with AD sampling, into the LCD display)
- 2015-07-20 13:30:39下载
- 积分：1
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74HC138
通过单片机控制74hc138译码芯片的源程序，初学者还对hc138比较糊涂的可以下来看看，会有帮助的。(Through the MCU to control 74HC138 decoding chip of the source, for beginners to hc138 confused can down to have a look, will help.)
- 2011-11-04 08:41:40下载
- 积分：1
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timer
时钟的应用源代码，可以让初次设计有关定时操作的人员借鉴。 (Clock application source code, allowing designers about the timing of the initial operation of reference.)
- 2014-01-20 15:55:52下载
- 积分：1
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c_language_Drawing-curves
基于单片机C语言实现液晶屏的曲线显示，可用于示波器等系统。(SCM C language-based curve of the LCD display can be used for systems such as an oscilloscope.)
- 2013-04-08 11:09:47下载
- 积分：1
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MPU6050
使用陀螺仪采集加速度、角速度、姿态角、温度、计步等数据，并上传到“匿名上位机”进行姿态显示。
本工程是移植自MPU6050官方驱动，包含了陀螺仪最完整的功能。(The use of gyro acquisition acceleration, angular velocity, attitude angle, temperature, and other data, and upload to the anonymous host computer attitude display.
This project is a transplant the MPU6050 official driver, including the most complete function of the gyroscope.)
- 2020-10-11 14:27:35下载
- 积分：1
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AD2S1210_Code
ADI公司的ADC芯片AD2S1210的配置及采集处理程序，已经过验证，在tms320上运行ok(ADC company s AD2S1210 chip ADI configuration and acquisition process, has been verified, running on the OK TMS320)
- 2021-03-18 10:39:20下载
- 积分：1
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NRF51822_Reader-2014-10-12
nrf51822 2.4g模块+uart+radio收发(nrf51822 2.4g+ uart+ radio transceiver module)
- 2014-10-27 09:45:07下载
- 积分：1
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11
通过PWM定时器延迟一秒，实现一个LED灯的明灭。实验中观察I/O口的值对LED灯的明灭的控制，学习I/O口的输入输出方式和设置，了解PWM的配置方式(Through the PWM timer to delay a second, the realization of a LED lamp at. I/O values for LED lamp light control experiment, learning I/O port input and output method and setting, understanding of PWM configuration methods)
- 2014-04-16 13:54:34下载
- 积分：1
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51monichuankou
51单片机摸拟串口,p1.0引脚发送，p1.1引脚接收(51 serial single-chip simulation, p1.0 send pin, p1.1 pin receiver)
- 2008-07-12 13:18:25下载
- 积分：1
