This is a network time clock. The accurate time is obtained through network timing every hour and written into DS3231. DS3231 is used to deal with situations where there is no network. More importantly, for low power consumption, it only needs to be fixed for a period of time. Just request network timing, the accuracy of DS3231 is still acceptable;
In terms of power supply, three type-C positions are reserved to facilitate reasonable wiring in different scenarios; a lithium battery interface is also reserved, which can be directly powered by lithium batteries; the integrated TP4056A chip can also be easily used for lithium batteries. to charge;
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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.
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