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tao_z
2022-07-18 6b5c0873684034c7d47a6f8fedeb51afe907dbf3
2022-07-18 tao_z
更新原理图，新增电源控制端二极管，防止负压破坏PNP. 调整按键采集电路电阻，增加按键识别度
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2022-03-05 tao_z
在首次打样的基础上，增加电源监测保护过压。
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