If you wanted to build a clock with a 7-segment display, there are a wide variety of ways you might go about it. You could grab some 74-series logic chips and create a whole bunch of counters and ...

(NEXSTAR) – The days getting shorter serve as a reminder that we’re barreling toward the end of our seasonal observation of daylight saving time, but the wheels may be in motion to stop that – a move ...

本内容遵循CC 4.0 BY-SA版权协议 DS1302 是一颗实时时钟芯片，说白了就是个“专门管时间的小芯片”。它内部有独立的秒、分、时、日、月、周、年寄存器，外接一颗 32.768kHz 晶振和一颗纽扣电池 ...

DCF77 is a German VLF transmitting station that broadcasts a time signal across Europe on 77.5 kHz. Thus a common sight in a European home is a clock emblazoned with the words “Radio controlled”. With ...

本内容遵循CC 4.0 BY-SA版权协议 ST-LINK接上板子，printf打出来的秒寄存器值始终停在0x00，一秒钟都不跳。这不是我第一次和DS1302打交道，但每次把STM32驱动DS1302的工程重新翻出来，总能遇到几个 ...

Americans hoping to stop changing their clocks twice a year are still waiting. Despite President Donald Trump's push to make daylight saving time permanent, the Senate returned from a five-week recess ...

The Senate is scheduled to return to regular legislative business Sept. 14, but no vote on the Sunshine Protection Act has been announced. That leaves lawmakers with a narrowing window to act on ...

Congress is closer than it has been in years to ending the nation's twice-yearly clock changes. The House passed the Sunshine Protection Act in July by a bipartisan 308-117 vote. The legislation would ...

Americans are still scheduled to turn clocks back one hour on Nov. 1, when daylight saving time ends across most of the United States. But the real suspense isn't about when clocks fall back. It's ...

LAS VEGAS (FOX5) — The Regional Transportation Commission of Southern Nevada (RTC) is gearing up to launch its systemwide transit service changes on Sunday, August 23. The changes will introduce a new ...

本项目使用Proteus8仿真Arduino单片机控制器，使用PCF8574、LCD1602液晶、DS1302等。 主要功能： 系统运行后，LCD1602显示时间日期 ...