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电子时钟
电子时钟程序，简洁明了，原创请勿抄袭
适用于stc15单片机(Electronic clock program)
- 2018-02-09 16:26:16下载
- 积分：1
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C
本程序基于单片机实现RTC实时时钟，简单易懂(The program is based MCU RTC real time clock, easy to understand)
- 2013-07-24 10:18:05下载
- 积分：1
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DAC
STM32F407信号发生器输入一个正弦波，AD采样，DA输出，系统频率应该是输入的波形的频率的10倍以上保证输出波形的完整性，系统的输出频率可以使用示波器测试出。(Stm32f407 signal generator input a sine wave, AD sampling, Da output and system frequency should is 10 times the frequency of the input waveform to guarantee that the above output waveform of integrity, the output frequency of the system can use oscilloscope to test out.
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- 2021-02-06 15:19:57下载
- 积分：1
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ic
说明： 本压缩包中详细介绍了电动机的单片机控制的有关方法(The compression package described in detail the single-chip motor control of the method)
- 2008-12-01 15:29:04下载
- 积分：1
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chuankou
串口下发至数码管显示，本程序已通过编译，可直接使用(Serial issued to the digital display, the program has been compiled, can be used directly)
- 2013-06-16 23:00:10下载
- 积分：1
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USART-RS232
这是基于STM32的USART转232的应用程序(This is based on the STM32 USART 232 applications)
- 2016-04-18 14:53:57下载
- 积分：1
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123
大家好，这是关于密码锁的电路图，需要的话可以参考下(
允许输入拉丁字符的拼音
英语
中文(简体)
日语
Hello, everybody, this is a circuit diagram of the combination lock, if necessary, can refer to the following
允许输入拉丁字符的拼音
英语
中文(简体)
日语
Hello, everybody, this is a circuit diagram of the combination lock, if necessary, can refer to the following)
- 2012-12-30 10:06:51下载
- 积分：1
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2610IO
dmc2610运动控制卡编写IO输出，对想编写运动控制的人有非常大的帮组(the dmc2610 motion control card write IO output, very large help group for people who want to write the motion control)
- 2020-09-10 05:08:03下载
- 积分：1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27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
