51单片机ds1302可调时钟在iic通信的oled上显示
时间: 2024-05-09 16:20:19 浏览: 194
要在IIC通信的OLED上显示DS1302可调时钟,需要编写一个程序来读取DS1302的时间,并将其显示在OLED上。以下是一个简单的示例程序:
```
#include <Wire.h> // include the Wire library for I2C communication
#include <U8g2lib.h> // include the U8g2 library for OLED display
#include <DS1302.h> // include the DS1302 library for RTC
#define RTC_CE 10 // RTC chip enable pin
#define RTC_IO 11 // RTC data pin
#define RTC_CLK 12 // RTC clock pin
DS1302 rtc(RTC_CE, RTC_IO, RTC_CLK); // create an instance of the DS1302 library
U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // create an instance of the U8g2 library
void setup() {
u8g2.begin(); // initialize the OLED display
rtc.halt(false); // start the RTC
rtc.writeProtect(false); // disable write protection on RTC
}
void loop() {
rtc.read(); // read the current time from the RTC
u8g2.clearBuffer(); // clear the OLED buffer
u8g2.setFont(u8g2_font_6x10_tf); // set the font for the display
u8g2.setCursor(0, 10); // set the cursor position for the display
u8g2.print(rtc.getHours()); // display the hours
u8g2.print(":");
if (rtc.getMinutes() < 10) { // if the minutes are less than 10, add a leading zero
u8g2.print("0");
}
u8g2.print(rtc.getMinutes()); // display the minutes
u8g2.print(":");
if (rtc.getSeconds() < 10) { // if the seconds are less than 10, add a leading zero
u8g2.print("0");
}
u8g2.print(rtc.getSeconds()); // display the seconds
u8g2.sendBuffer(); // send the buffer to the OLED display
delay(1000); // wait for 1 second before updating the display again
}
```
该程序使用Wire库进行I2C通信,并使用U8g2库控制OLED显示。它还使用DS1302库从RTC芯片读取当前时间,并将其显示在OLED上。在设置中,程序启动RTC并禁用了RTC的写保护。在主循环中,程序读取当前时间,并将其格式化为hh:mm:ss的格式。然后,它将时间显示在OLED上,并在每次更新显示之间等待1秒钟。
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