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ESP32 SPI
Folgende Seiten sind von Interesse:
mbedEsp32S_LCD_SPI_mode1.ino
#include <Arduino.h> #include <U8g2lib.h> #include <stdio.h> U8G2_ST7565_NHD_C12832_1_4W_HW_SPI u8g2(U8G2_R2, 5, 14, 13); // U8G2_R2 is a rotation of 180° int lpCount = 0; char buff[20] = {'x', ' ', '=', ' '}; void setup(void) { Serial.begin(115200); Serial.printf("\nsetup 1: %d\n", lpCount++); u8g2.begin(); Serial.printf("setup 2: %d\n", lpCount++); } void loop(void) { Serial.printf("\n--> loop: %d", lpCount++); u8g2.firstPage(); do { u8g2.setFont(u8g2_font_ncenB14_tr); u8g2.drawStr(0,24,"Hallo 4CHEL!"); } while ( u8g2.nextPage() ); delay(2000); u8g2.firstPage(); sprintf(buff, "x = %d", lpCount%0xFFFF); do { u8g2.setFont(u8g2_font_ncenB14_tr); u8g2.drawStr(0, 24, buff); } while ( u8g2.nextPage() ); delay(2000); }