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ESP32 C3 0.42LCD display Hello world

1, Hardware connection: 

Directly connect the Type C USB port to the computer, and the serial port will be automatically recognized after connecting to the hub

2, Software burning:

2.1. Copy the following code to the Arduino IDE

#include<Arduino.h>

#include<U8g2lib.h>

#ifdefU8X8_HAVE_HW_SPI

#include<SPI.h>

#endif

#ifdefU8X8_HAVE_HW_I2C

#include<Wire.h>

#endif

#defineSDA_PIN5

#defineSCL_PIN6

U8G2_SSD1306_72X40_ER_F_HW_I2Cu8g2(U8G2_R0,/* reset=*/U8X8_PIN_NONE);//

voidsetup(void){

Wire.begin(SDA_PIN, SCL_PIN);

u8g2.begin();

}

voidloop(void){

u8g2.clearBuffer();// clear the internal memory

u8g2.setFont(u8g2_font_ncenB08_tr);// choose a suitable font

u8g2.drawStr(0,10,"Hello World!");// write something to the internal memory

u8g2.sendBuffer();// transfer internal memory to the display

delay(1000);

}


Note: The text characters in parentheses of 'Hello World!' can only be English letters and cannot be in Chinese

2.2. Use a type-c cable to connect the computer to the ESP 32-c3 development board. After successful connection, the serial port will be displayed in the computer management window

2.3. Click on Tools in the Arduino IDE, then click on Port and select the serial port Adafruit QT ESP32-C3

2.4 Click to Verfy

2.5 Click  to upload

2.6 6. Waiting for upload


After successful upload

The display effect of the development board is as follows


TAG: 1.54inch LCD TouchScreen Display 240×240 ST7789S For Arduino /Raspberry Pi /ESP32 /Pico /STM32 Arduino Thermal imaging camera 3D Display Transparent Screen IO BASE MINI Board Raspberry Pi LCD DDSM115 Direct Drive Servo Motor All-In-One Design Hub RS485 Motor Serial UART Bus Servo ST3020 TTL 25KG.CM Magnetic-Encoder High precision and Large torque Raspberry Pi Handheld Linux Terminal 3.5inch TouchScreen 640x480 Portable Development Computer AI Deepseek Mechanical Voice Keyboard Linux 10x0.85inch LCD Screen Customize keys + 2.01 inch Secondary Display Raspberry Pi 15.6 inch FHD Monitor (C) LCD 1080P Capacitive TouchScreen Display Type-C/HDMI For Computer PC ESP32 S3 Development Board 1.5 inch Round Rotary OLED TouchScreen Smart Knob Display 1.5inch Display 466x466 LVGL for Arduino MiniPCIe Interface 2 CH CAN Card USB CAN Multiple Protection Circuits For Linux/Windows RS485 to Ethernet Raspberry Pi 4B Raspberry Pi Pico RP2040 C Environment Window LCC-14 Raspberry Pi 5 Raspberry Pi SIM7670G LTE-4G-Cat-1/GNSS/USB-HUB Expansion Board Raspberry Pi 5 Official Original PCIe to M.2 NVMe SSD Raspberry Pi M.2 HAT+ Board For Pi5 Raspberry Pi