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485通信中,多个从机如何通过竞争选出一个主机
2015-12-9 15:41
- 通信技术
- 21
- 8345
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为什么要大小电容并联做电源滤波
2014-3-11 11:30
- 电路赏析
- 81
- 23698
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请教怎样用程序写一个试用产品程序(PIC)?(在使用一定时间后程序失效)
2013-7-12 08:11
- Microchip
- 43
- 6361
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男人选择老婆的标准是什么?
2014-1-9 09:13
- 情感婚姻研习社
- 215
- 22772
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ISP51能否读出单片机内的随机号
2013-3-6 16:07
- 中颖MCU
- 7
- 2087
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请高手看看这是什么东西
2013-4-3 17:36
- 电路赏析
- 13
- 3474
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今天终于见识到钽电容燃烧事故
2013-4-9 14:51
- 电子技术交流论坛
- 27
- 10900
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stc单片机下载不了,折腾了大半晚上
2013-8-24 13:59
- 侃单片机论坛
- 44
- 7011
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单片机程序不会修改了
2013-3-6 10:53
- 新手园地
- 12
- 4239
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关于datasheet的阅读
2013-1-31 15:16
- 模拟技术论坛
- 4
- 2775
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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请教大虾:如何用硬件电路实现蜂鸣器发出声音?
2013-4-28 16:59
- 电路赏析
- 18
- 4594
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要过年了,累了,烦了,想换工作
2013-2-1 18:47
- 电子技术交流论坛
- 51
- 7209
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跪求耳机插入检测硬件电路
2020-7-24 19:33
- 电路赏析
- 13
- 14364
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伺服驱动器的苦恼
2015-1-22 22:29
- 电子技术交流论坛
- 7
- 2038
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编译能通过,但调试时总出现自动跳转
2013-1-17 17:10
- 侃单片机论坛
- 7
- 3510
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