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ESP32 C3 0.42LCD Graphics Test

1、 Import WS2812FX Graphics Library

1.1. Click on Sketch

1.2. Click on include library

1.3. Click on manage Libraries

1.4. Search for WS2812FX in the search box

1.5. Click on IN STALLED to install

2、Burning code

#ifdefU8X8_HAVE_HW_SPI

#include<SPI.h>

#endif

#ifdefU8X8_HAVE_HW_I2C

#include<Wire.h>

#endif

#defineLED_COUNT1

#defineLED_PIN2

#defineSDA_PIN5

#defineSCL_PIN6

WS2812FX ws2812fx =WS2812FX(LED_COUNT, LED_PIN, NEO_RGB + NEO_KHZ800);

U8G2_SSD1306_72X40_ER_F_HW_I2Cu8g2(U8G2_R0,/* reset=*/U8X8_PIN_NONE);// EastRising 0.42" OLED

voidu8g2_prepare(void){

u8g2.setFont(u8g2_font_6x10_tf);

u8g2.setFontRefHeightExtendedText();

u8g2.setDrawColor(1);

u8g2.setFontPosTop();

u8g2.setFontDirection(0);

}

voidu8g2_box_frame(uint8_ta){

u8g2.drawStr(0,0,"drawBox");

u8g2.drawBox(5,10,20,10);

u8g2.drawBox(10+a,15,30,7);

u8g2.drawStr(0,30,"drawFrame");

u8g2.drawFrame(5,10+30,20,10);

u8g2.drawFrame(10+a,15+30,30,7);

}

voidu8g2_disc_circle(uint8_ta){

u8g2.drawStr(0,0,"drawDisc");

u8g2.drawDisc(10,18,9);

u8g2.drawDisc(24+a,16,7);

u8g2.drawStr(0,30,"drawCircle");

u8g2.drawCircle(10,18+30,9);

u8g2.drawCircle(24+a,16+30,7);

}

voidu8g2_r_frame(uint8_ta){

u8g2.drawStr(0,0,"drawRFrame/Box");

u8g2.drawRFrame(5,10,40,30, a+1);

u8g2.drawRBox(50,10,25,40, a+1);

}

voidu8g2_string(uint8_ta){

u8g2.setFontDirection(0);

u8g2.drawStr(30+a,31," 0");

u8g2.setFontDirection(1);

u8g2.drawStr(30,31+a," 90");

u8g2.setFontDirection(2);

u8g2.drawStr(30-a,31," 180");

u8g2.setFontDirection(3);

u8g2.drawStr(30,31-a," 270");

}

voidu8g2_line(uint8_ta){

u8g2.drawStr(0,0,"drawLine");

u8g2.drawLine(7+a,10,40,55);

u8g2.drawLine(7+a*2,10,60,55);

u8g2.drawLine(7+a*3,10,80,55);

u8g2.drawLine(7+a*4,10,100,55);

}

voidu8g2_triangle(uint8_ta){

uint16_toffset = a;

u8g2.drawStr(0,0,"drawTriangle");

u8g2.drawTriangle(14,7,45,30,10,40);

u8g2.drawTriangle(14+offset,7-offset,45+offset,30-offset,57+offset,10-offset);

u8g2.drawTriangle(57+offset*2,10,45+offset*2,30,86+offset*2,53);

u8g2.drawTriangle(10+offset,40+offset,45+offset,30+offset,86+offset,53+offset);

}

voidu8g2_ascii_1(){

chars[2] =" ";

uint8_tx, y;

u8g2.drawStr(0,0,"ASCII page 1");

for(y =0; y <6; y++){

for(x =0; x <16; x++){

s[0] = y*16+ x +32;

u8g2.drawStr(x*7, y*10+10, s);

}

}

}

voidu8g2_ascii_2(){

chars[2] =" ";

uint8_tx, y;

u8g2.drawStr(0,0,"ASCII page 2");

for(y =0; y <6; y++){

for(x =0; x <16; x++){

s[0] = y*16+ x +160;

u8g2.drawStr(x*7, y*10+10, s);

}

}

}

voidu8g2_extra_page(uint8_ta)

{

u8g2.drawStr(0,0,"Unicode");

u8g2.setFont(u8g2_font_unifont_t_symbols);

u8g2.setFontPosTop();

u8g2.drawUTF8(0,24,"☀ ☁");

switch(a){

case0:

case1:

case2:

case3:

u8g2.drawUTF8(a*3,36,"☂");

break;

case4:

case5:

case6:

case7:

u8g2.drawUTF8(a*3,36,"☔");

break;

}

}

#definecross_width24

#definecross_height24

staticconstunsignedcharcross_bits[] U8X8_PROGMEM  ={

0x00, 0x18, 0x00, 0x00, 0x24, 0x00, 0x00, 0x24, 0x00, 0x00, 0x42, 0x00,

0x00, 0x42, 0x00, 0x00, 0x42, 0x00, 0x00, 0x81, 0x00, 0x00, 0x81, 0x00,

0xC0, 0x00, 0x03, 0x38, 0x3C, 0x1C, 0x06, 0x42, 0x60, 0x01, 0x42, 0x80,

0x01, 0x42, 0x80, 0x06, 0x42, 0x60, 0x38, 0x3C, 0x1C, 0xC0, 0x00, 0x03,

0x00, 0x81, 0x00, 0x00, 0x81, 0x00, 0x00, 0x42, 0x00, 0x00, 0x42, 0x00,

0x00, 0x42, 0x00, 0x00, 0x24, 0x00, 0x00, 0x24, 0x00, 0x00, 0x18, 0x00,};

#definecross_fill_width24

#definecross_fill_height24

staticconstunsignedcharcross_fill_bits[] U8X8_PROGMEM  ={

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x18, 0x64, 0x00, 0x26,

0x84, 0x00, 0x21, 0x08, 0x81, 0x10, 0x08, 0x42, 0x10, 0x10, 0x3C, 0x08,

0x20, 0x00, 0x04, 0x40, 0x00, 0x02, 0x80, 0x00, 0x01, 0x80, 0x18, 0x01,

0x80, 0x18, 0x01, 0x80, 0x00, 0x01, 0x40, 0x00, 0x02, 0x20, 0x00, 0x04,

0x10, 0x3C, 0x08, 0x08, 0x42, 0x10, 0x08, 0x81, 0x10, 0x84, 0x00, 0x21,

0x64, 0x00, 0x26, 0x18, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,};

#definecross_block_width14

#definecross_block_height14

staticconstunsignedcharcross_block_bits[] U8X8_PROGMEM  ={

0xFF, 0x3F, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20,

0xC1, 0x20, 0xC1, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20, 0x01, 0x20,

0x01, 0x20, 0xFF, 0x3F,};

voidu8g2_bitmap_overlay(uint8_ta){

uint8_tframe_size =28;

u8g2.drawStr(0,0,"Bitmap overlay");

u8g2.drawStr(0, frame_size +12,"Solid / transparent");

u8g2.setBitmapMode(false/* solid */);

u8g2.drawFrame(0,10, frame_size, frame_size);

u8g2.drawXBMP(2,12, cross_width, cross_height, cross_bits);

if(a &4)

u8g2.drawXBMP(7,17, cross_block_width, cross_block_height, cross_block_bits);

u8g2.setBitmapMode(true/* transparent*/);

u8g2.drawFrame(frame_size +5,10, frame_size, frame_size);

u8g2.drawXBMP(frame_size +7,12, cross_width, cross_height, cross_bits);

if(a &4)

u8g2.drawXBMP(frame_size +12,17, cross_block_width, cross_block_height, cross_block_bits);

}

voidu8g2_bitmap_modes(uint8_ttransparent){

constuint8_tframe_size =24;

u8g2.drawBox(0, frame_size *0.5, frame_size *5, frame_size);

u8g2.drawStr(frame_size *0.5,50,"Black");

u8g2.drawStr(frame_size *2,50,"White");

u8g2.drawStr(frame_size *3.5,50,"XOR");

if(!transparent){

u8g2.setBitmapMode(false/* solid */);

u8g2.drawStr(0,0,"Solid bitmap");

}else{

u8g2.setBitmapMode(true/* transparent*/);

u8g2.drawStr(0,0,"Transparent bitmap");

}

u8g2.setDrawColor(0);// Black

u8g2.drawXBMP(frame_size *0.5,24, cross_width, cross_height, cross_bits);

u8g2.setDrawColor(1);// White

u8g2.drawXBMP(frame_size *2,24, cross_width, cross_height, cross_bits);

u8g2.setDrawColor(2);// XOR

u8g2.drawXBMP(frame_size *3.5,24, cross_width, cross_height, cross_bits);

}

uint8_tdraw_state =0;

voiddraw(void){

u8g2_prepare();

switch(draw_state >>3){

case0:u8g2_box_frame(draw_state&7);break;

case1:u8g2_disc_circle(draw_state&7);break;

case2:u8g2_r_frame(draw_state&7);break;

case3:u8g2_string(draw_state&7);break;

case4:u8g2_line(draw_state&7);break;

case5:u8g2_triangle(draw_state&7);break;

case6:u8g2_ascii_1();break;

case7:u8g2_ascii_2();break;

case8:u8g2_extra_page(draw_state&7);break;

case9:u8g2_bitmap_modes(0);break;

case10:u8g2_bitmap_modes(1);break;

case11:u8g2_bitmap_overlay(draw_state&7);break;

}

}

voidsetup(void){

ws2812fx.init();

ws2812fx.setBrightness(255);

ws2812fx.setSpeed(1000);

ws2812fx.setColor(0x007BFF);

ws2812fx.setMode(FX_MODE_STATIC);

ws2812fx.start();

Wire.begin(SDA_PIN, SCL_PIN);

u8g2.begin();

}

voidloop(void){

ws2812fx.service();

// picture loop

u8g2.clearBuffer();

draw();

u8g2.sendBuffer();

// increase the state

draw_state++;

if(draw_state >=12*8)

draw_state =0;

// deley between each page

delay(100);

}


2.1. Copy the code into the Arduino IDE

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

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

2.4Click on Verify

2.5.Click on upload

2.6 The test results are as follows


TAG: Industrial Isolated Converter Banana Pi MPS2280 POE Raspberry Pi 5 PCIe to M.2 NVMe SSD Adapter Board HAT Pi5 2280/2242/2230 ESP32 C3 LCD Development Board 1.3 inch Display Screen ST7789 240x240 3D Transparent Refractive Prism Mini TV For Arduino CSI-to-HDMI USB-CAN-B LuckFox Pico Jetson 1.5inch LCD Jetson Nano Flash Firmware Flashing and Erasing User Guide ESP32 UART USB Bus Servo ST RSBL Driver board For Raspberry PI Robot Raspberry Pi RP2040 Keyboard Raspberry Pi 3.5 inch LCD F Display Capacitance TouchScreen 60fps ST7796 GT911 320x480 Also For Arduino/Pico2/ESP32/RP2040/RP2350 RP2040 Raspberry Pi 5 inch DSI Display MIPI LCD (C) Capacitive TouchScreen 1024x600 Raspberry Pi Display Driver Board TVOC Sensor gas Sensor Expansion board UART High Sensitivity For Arduino /Raspberry Pi /Pico /ESP32 ESP32 C3 Computer USB Monitor Screen Arduino IR Thermal Imaging Camera