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Stay setup Function to initialize the module, And decide RTC Whether the time and date in the module are valid （RTC The module factory has written the time ） void setup ( ) Example running effect Įnter the keyword in the search box ds1302, Install the first library, The latest version is 2.3.5ĭefine module pins and RTC Class object // DS1302 CLK/SCLK -> ESP-12F D2 // DS1302 DAT/IO -> ESP-12F D1 // DS1302 RST/CE -> ESP-12F D0 int DS1302_RST = D0 int DS1302_DAT = D1 int DS1302_CLK = D2 Open Arduino IDE, project → Load the library → Management of the library. GND： Connect the negative pole of the power supply Īmong CLK、DAT、RST The pin can be connected to any part of the control board IO Third party library installation VCC： Connect the positive pole of the power supply 5V/3.3V DS1302 The power consumption is very low during operation, and the power is less than when maintaining data and clock information 1mW. The clock /RAM The reading of / Write data in one byte or up to 31 Byte character group communication. DS1302 And MCU can simply use synchronous serial communication, Only three port lines are needed ： The clock operation can be realized through AM/PM The instruction decides to adopt 24 or 12 Hour format.

Real time clock / The calendar circuit provides seconds 、 branch 、 when 、 Japan 、 Zhou 、 month 、 Information for the year, The number of days per month and leap year can be adjusted automatically. ĭS1302 Clock module ,DS1302 yes DALLAS Trickle charging clock chip launched by the company, It contains a real-time clock / Calendar and 31 Byte static RAM, Communicate with MCU through simple serial interface. RTC Clock module is one of the indispensable modules in all kinds of real-time devices, Especially in our commonly used electronic clock, Desktop notebook, It can even be seen on mobile phones, This chapter will give an overview of the clock module and RTC Library use and simple examples.

Ds1302 h arduino library download