1 #include <Arduino.h>
2 #include <U8g2lib.h>
3 #include <Wire.h>
4
5 //iic驱动方式 6 U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); 7
8 void setup(void) { 9 u8g2.begin(); 10 } 11
12 uint8_t m = 24; 13
14 void loop(void) { 15 char m_str[3]; 16 strcpy(m_str, u8x8_u8toa(m, 2)); /* convert m to a string with two digits */
17 u8g2.firstPage(); 18 do { 19 u8g2.setFont(u8g2_font_logisoso62_tn); 20 u8g2.drawStr(0,63,"9"); 21 u8g2.drawStr(33,63,":"); 22 u8g2.drawStr(50,63,m_str); 23 } while ( u8g2.nextPage() ); 24 delay(1000); 25 m++; 26 if ( m == 60 ) 27 m = 0; 28 }
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