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As long as the circuit is designed and manufactured correctly, there should be no problems when the power is turned on even if the program is not downloaded. The fact that the host encountered battery heating and leakage indicates that there is a short circuit or other low-impedance loop in the circuit. Is it a design problem or a manufacturing or installation problem? The host did not provide relevant information, so it is impossible to analyze and judge.
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玩板看这里： http://en.eeworld.com/bbs/elecplay.html EEWorld测评频道众多好板等你来玩，还可以来频道许愿树许愿说说你想要玩的板子，我们都在努力为大家实现！ |
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Personal signature上传了一些书籍资料，也许有你想要的：http://download.eeworld.com.cn/user/chunyang
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