基于单片机的电子音乐门铃的设计_毕业论文_论文天下网 关键词：单片机；电子门铃；液晶显示；语音录放 [gap=1483]Key words: Single Chip Microprocessor;Electronic doorbell;LCD display;Voice record-play
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这里介绍的是一种实用的感应式电子门铃设计思路与制作方案。
Introducing that here is that one kind of pragmatic induced dyadic electron door bell designs a train of thought and makes a scheme.
本发明涉及一种用交流电的电子音乐门铃，由普通电子门铃加整流电源、继电器及功率放大器构成。本发明不再需要电池供电。
This AC electronic music door bell is composed of general electronic door bell, rectified power supply, relay and power amplifier and does not need battery to power it.
这种攻击好比于电子式的“按一下你家门铃然后立即跑开”：被攻击的的网站服务器把资源浪费在回复无谓的数据请求上。
The attacks use the electronic equivalent of ringing the site's doorbell and running away: the targeted site's server wastes its resources answering the call.
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