• sales

    +86-0755-88291180

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: FT232RNL USB TO TTL Industrial UART Can For Raspberry Pi 5 Terminal Debug ESP32 S3 Development Board 1.46 inch Round LCD 1.46inch Display 412x412 QMI8658 Sensor / MIC / SD /MP3 Audio /Battery Port LVGL/HMI For Arduino Raspberry Pi 5 Rounded LCD USB To CAN ESP32-S3 1.28inch Round LCD Display Screen Module Development Board GC9A01A QMI8658A With Case SpotPear Raspberry Pi Raspberry Pi RP2040 Raspberry Pi 5 Fan Raspberry Pi Pico RP2040 1.69 inch TouchScreen Round LCD Display With QMI8658/Buzzer/RTC For Arduino Spotpear Modbus POE ETH Relay MQTT User Guide Raspberry Pi 5 PCIe to M.2 5G/4G/3G HAT With RM520N-GL Raspberry Pi 5 Raspberry Pi Pico 2 RP2350 2 inch LCD Capacitive TouchScreen Development Board 240x320 Display QMI8658 6-Axis /OV5640 Camera /SD /Battery Port 128x128 RV1106 SC3336 RP2040 Luckfox Pico Tutorial