ESP32驱动 1.3寸OLED SH1106芯片）

使用U8g2lib库驱动 1.3寸OLED

驱动IC：SH1106
分辨率：128*64
支持电压3.3V/5.0V

#include <Arduino.h>
#include <U8g2lib.h>U8G2_SH1106_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0,  /*SCL*/  GPIO_NUM_5,  /*SDA*/  GPIO_NUM_18,   /*reset*/  U8X8_PIN_NONE);//构造typedef u8g2_uint_t u8g_uint_t;#define SECONDS 10
uint8_t flip_color = 0;
uint8_t draw_color = 1;void draw_set_screen(void) {// graphic commands to redraw the complete screen should be placed here  u8g2.setColorIndex(flip_color);u8g2.drawBox( 0, 0, u8g2.getWidth(), u8g2.getHeight() );
}void draw_clip_test(void) {u8g_uint_t i, j, k;char buf[3] = "AB";k = 0;u8g2.setColorIndex(draw_color);u8g2.setFont(u8g2_font_6x10_tf);for( i = 0; i  < 6; i++ ) {for( j = 1; j  < 8; j++ ) {u8g2.drawHLine(i-3, k, j);u8g2.drawHLine(i-3+10, k, j);u8g2.drawVLine(k+20, i-3, j);u8g2.drawVLine(k+20, i-3+10, j);k++;}}u8g2.setFontDirection(0);u8g2.drawStr(0-3, 50, buf);u8g2.setFontDirection(2);u8g2.drawStr(0+3, 50, buf);u8g2.setFontDirection(0);u8g2.drawStr(u8g2.getWidth()-3, 40, buf);u8g2.setFontDirection(2);u8g2.drawStr(u8g2.getWidth()+3, 40, buf);u8g2.setFontDirection(1);u8g2.drawStr(u8g2.getWidth()-10, 0-3, buf);u8g2.setFontDirection(3);u8g2.drawStr(u8g2.getWidth()-10, 3, buf);u8g2.setFontDirection(1);u8g2.drawStr(u8g2.getWidth()-20, u8g2.getHeight()-3, buf);u8g2.setFontDirection(3);u8g2.drawStr(u8g2.getWidth()-20, u8g2.getHeight()+3, buf);u8g2.setFontDirection(0);}void draw_char(void) {char buf[2] = "@";u8g_uint_t i, j;// graphic commands to redraw the complete screen should be placed here  u8g2.setColorIndex(draw_color);u8g2.setFont(u8g2_font_6x10_tf);j = 8;for(;;) {i = 0;for(;;) {u8g2.drawStr( i, j, buf);i += 8;if ( i > u8g2.getWidth() )break;}j += 8;if ( j > u8g2.getHeight() )break;}}void draw_pixel(void) {u8g_uint_t x, y, w2, h2;u8g2.setColorIndex(draw_color);w2 = u8g2.getWidth();h2 = u8g2.getHeight();w2 /= 2;h2 /= 2;for( y = 0; y < h2; y++ ) {for( x = 0; x < w2; x++ ) {if ( (x + y) & 1 ) {u8g2.drawPixel(x,y);u8g2.drawPixel(x,y+h2);u8g2.drawPixel(x+w2,y);u8g2.drawPixel(x+w2,y+h2);}}}
}void draw_line(void) {u8g2.setColorIndex(draw_color);u8g2.drawLine(0,0, u8g2.getWidth()-1, u8g2.getHeight()-1);
}// returns unadjusted FPS
uint16_t execute_with_fps(void (*draw_fn)(void)) {uint16_t FPS10 = 0;uint32_t time;time = millis() + SECONDS*1000;// picture loopdo {u8g2.clearBuffer();draw_fn();u8g2.sendBuffer();FPS10++;flip_color = flip_color ^ 1;} while( millis() < time );return FPS10;  
}const char *convert_FPS(uint16_t fps) {static char buf[6];strcpy(buf, u8g2_u8toa( (uint8_t)(fps/10), 3));buf[3] =  '.';buf[4] = (fps % 10) + '0';buf[5] = '\0';return buf;
}void show_result(const char *s, uint16_t fps) {// assign default color valueu8g2.setColorIndex(draw_color);u8g2.setFont(u8g2_font_8x13B_tf);u8g2.clearBuffer();u8g2.drawStr(0,12, s);u8g2.drawStr(0,24, convert_FPS(fps));u8g2.sendBuffer();
}void setup(void) {u8g2.begin();draw_color = 1;         // pixel on//u8g2.setBusClock(2000000);
}void loop(void) {uint16_t fps;fps = execute_with_fps(draw_clip_test);show_result("draw clip test", fps);delay(5000);fps = execute_with_fps(draw_set_screen);show_result("clear screen", fps);delay(5000);fps = execute_with_fps(draw_char);show_result("draw @", fps);delay(5000);  fps = execute_with_fps(draw_pixel);show_result("draw pixel", fps);delay(5000);fps = execute_with_fps(draw_line);show_result("draw line", fps);delay(5000);
}