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一个关于SMA连接器和天线阻抗的问题
2018-12-5 13:48
- 通信技术
- 5
- 2373
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
发布STM32远程升级软件
2018-10-22 15:52
- ST MCU
- 27
- 12845
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
第一次自己画板打样,求建议
2016-10-21 23:08
- PCB技术
- 21
- 2223
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
大量生产
2016-10-15 19:12
- Megawin(笙泉)单片机
- 21
- 1147
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
光耦的Current Transfer Ratio是什么意思?
2019-7-23 11:46
- 电子技术交流论坛
- 93
- 30600
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
关于PCB焊接在pcb上的问题
2016-5-26 14:34
- 电子技术交流论坛
- 16
- 1129
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
有没有直接用锂电池供电的单片机?
2016-4-24 13:37
- 侃单片机论坛
- 16
- 6155
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
这个用C语言怎么实现
2016-4-21 20:08
- 嵌入式操作系统论坛
- 8
- 752
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请问STM32F407的IO口的速度问题
2016-4-21 20:03
- ST MCU
- 4
- 1417
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
RGB灯同电脑上RGB值对应问题
2016-6-2 11:18
- 侃单片机论坛
- 8
- 1138
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
STM32F1芯片有缺陷
2016-4-25 08:57
- ST MCU
- 45
- 4079
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
AD画图碰到的问题
2016-4-21 08:52
- 电子技术交流论坛
- 32
- 4457
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
退耦电容
2016-4-18 23:28
- 德州仪器模拟论坛
- 34
- 1132
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
STC51驱动的 16X64点阵 扫描频率不够 如何解决?
2016-4-15 13:21
- 侃单片机论坛
- 12
- 2169
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
不知道这八个二极管的作用
2016-4-12 16:43
- 模拟技术论坛
- 18
- 1855
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
请教三极管问题
2016-4-7 09:54
- 模拟技术论坛
- 13
- 762
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![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
两节干电池3V电压转换为3.3V给单片机供电
2020-12-31 10:42
- 嵌入式操作系统论坛
- 10
- 7389
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
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STM32F446(nucleo-144)开发板测评--好大的MCU
2016-4-8 18:29
- ST MCU
- 15
- 962
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
STM32F103 72M时钟下模拟IO口最高频率是多少?
2016-5-15 00:33
- ST MCU
- 17
- 10950
![](https://bbs.21ic.com/static/image/common/icon_quote_m_s.gif)
![](https://bbs.21ic.com/static/image/common/icon_quote_m_e.gif)
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