233 lines
11 KiB
C++
233 lines
11 KiB
C++
#include<ESP32epdx.h> //E-paper SPI etc
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//EPD
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#include"EPD.h" //E-paper driver
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#include"IMAGE.h" //E-paper image data
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//BT
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#include "BluetoothSerial.h"
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#if !defined(CONFIG_BT_ENABLED) || !defined(CONFIG_BLUEDROID_ENABLED)
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#error Bluetooth is not enabled! Please run `make menuconfig` to and enable it
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#endif
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BluetoothSerial SerialBT;
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char BT_RX_BUF[100]; //BT receive data
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char StringNum[100];// BT display data
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unsigned int DataLength;// Data length
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unsigned char ImageBW[EPD_ARRAY];//Define canvas space
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void setup() {
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/* ESP32-WROOM-32D (Using hardware SPI)
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BUSY——GPIO13 RES——GPIO12 DC——GPIO14 CS——GPIO27 SCK—GPIO18 SDIN—GPIO23 */
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pinMode(13, INPUT); //BUSY
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pinMode(12, OUTPUT); //RES
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pinMode(14, OUTPUT); //DC
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pinMode(27, OUTPUT); //CS
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//SPI
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SPI.beginTransaction(SPISettings(10000000, MSBFIRST, SPI_MODE0));
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SPI.begin ();
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//BT
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Serial.begin(115200);
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SerialBT.begin("ESP32test"); //Bluetooth device name
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Serial.println("The device started, now you can pair it with bluetooth!");
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}
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//Tips//
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/*
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1.Flickering is normal when EPD is performing a full screen update to clear ghosting from the previous image so to ensure better clarity and legibility for the new image.
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2.There will be no flicker when EPD performs a partial update.
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3.Please make sue that EPD enters sleep mode when update is completed and always leave the sleep mode command. Otherwise, this may result in a reduced lifespan of EPD.
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4.Please refrain from inserting EPD to the FPC socket or unplugging it when the MCU is being powered to prevent potential damage.)
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5.Re-initialization is required for every full screen update.
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6.When porting the program, set the BUSY pin to input mode and other pins to output mode.
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*/
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void loop() {
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unsigned char i;
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int num;
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EPD_HW_Init(); //Full screen update initialization.
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EPD_WhiteScreen_White(); //Clear screen function.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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//Send the following test data in hexadecimal format using Bluetooth debugging assistant
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//AA 55 E1 00 08 40 41 42 43 44 45 46 47 04 FF 0D 0A （40~47：@ABCDEFG ascii）
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/*AA 55: Data Header
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E1: Function Bit
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00: Reserved
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08: Data Length
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40-47: Data Bit
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04: Verification
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FF 0D 0A: Data Tail
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*/
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while(1)
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{
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if(SerialBT.available()) //Bluetooth data reception
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{
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BT_RX_BUF[num++]=SerialBT.read();
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}
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if(BT_RX_BUF[16]==0x0A) //Determine the data tail
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{
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Serial.println("BT_RX_BUF[16]==0x0A");
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//Get display data
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for(i=0;i<BT_RX_BUF[4];i++)
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{
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StringNum[i]=BT_RX_BUF[i+5]; //Extract data: 5-12 data sections
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}
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//Confirm BT data
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for(i=0;i<17;i++)
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{
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SerialBT.write(BT_RX_BUF[i]);
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Serial.write(BT_RX_BUF[i]);
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BT_RX_BUF[i]=0;
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}
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if(i==17)
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{
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i=0;
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num=0;
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}
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//After receiving Bluetooth data, the electronic paper GUI displays the StrinNum, which is the real data sent by the phone:@ ABCDEFG
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#if 1 //Bluetooth receives 8 bytes of data
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//Data initialization settings
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Paint_NewImage(ImageBW, EPD_WIDTH, EPD_HEIGHT, 270, WHITE); // Set screen size and display orientation
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Paint_SelectImage(ImageBW);// Set the virtual canvas data storage location
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/***********String***************************/
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Paint_Clear(WHITE);
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Paint_DrawString_EN(0, 0, "Good Display", &Font12, WHITE, BLACK); // Display Good Display
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Paint_DrawString_EN(0, 50, StringNum, &Font20, BLACK, WHITE); // Display Bluetooth data sent by mobile phone，@ABCDEFG
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Paint_DrawString_EN(0, 70, StringNum, &Font24, BLACK, WHITE); // Display Bluetooth data sent by mobile phone，@ABCDEFG
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EPD_HW_Init_GUI(); //EPD init GUI
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EPD_Display(ImageBW);//Display image
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EPD_DeepSleep();// EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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#endif
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#if 0 //StringNum is image data, use this function.
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EPD_HW_Init(); //Full screen update initialization.
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EPD_WhiteScreen_ALL(StringNum); // To Display one image using full screen refresh.
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EPD_DeepSleep(); // Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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#endif
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}
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}
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#if 0 //Full screen update, fast update, and partial update demostration.
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EPD_HW_Init(); //Full screen update initialization.
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EPD_WhiteScreen_White(); //Clear screen function.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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/************Full display(2s)*******************/
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EPD_HW_Init(); //Full screen update initialization.
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EPD_WhiteScreen_ALL(gImage_1); //To Display one image using full screen update.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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/************Fast update mode(1.5s)*******************/
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EPD_HW_Init_Fast(); //Fast update initialization.
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EPD_WhiteScreen_ALL_Fast(gImage_2); //To display the second image using fast update.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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/************4 Gray update mode*******************/
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#if 1 //To enable this feature, please change 0 to 1
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EPD_HW_Init_4G(); //4 Gray update initialization.
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EPD_WhiteScreen_ALL_4G(gImage_4G1); //To display one image using fast update.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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#endif
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#if 1 //Partial update demostration.
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//Partial update demo support displaying a clock at 5 locations with 00:00. If you need to perform partial update more than 5 locations, please use the feature of using partial update at the full screen demo.
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//After 5 partial updates, implement a full screen update to clear the ghosting caused by partial updates.
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//////////////////////Partial update time demo/////////////////////////////////////
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EPD_HW_Init(); //Electronic paper initialization.
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EPD_SetRAMValue_BaseMap(gImage_basemap); //Please do not delete the background color function, otherwise it will cause unstable display during partial update.
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for(i=0;i<6;i++)
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EPD_Dis_Part_Time(32,92+32*0,Num[i], //x-A,y-A,DATA-A
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32,92+32*1,Num[0], //x-B,y-B,DATA-B
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32,92+32*2,gImage_numdot, //x-C,y-C,DATA-C
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32,92+32*3,Num[0], //x-D,y-D,DATA-D
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32,92+32*4,Num[1],32,64); //x-E,y-E,DATA-E,Resolution 32*64
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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#endif
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#if 1 //Demo of using partial update to update the full screen, to enable this feature, please change 0 to 1.
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//After 5 partial updates, implement a full screen update to clear the ghosting caused by partial updates.
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//////////////////////Partial update time demo/////////////////////////////////////
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EPD_HW_Init(); //E-paper initialization
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EPD_SetRAMValue_BaseMap(gImage_p1); //Please do not delete the background color function, otherwise it will cause an unstable display during partial update.
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EPD_Dis_PartAll(gImage_p1); //Image 1
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EPD_Dis_PartAll(gImage_p2); //Image 2
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EPD_Dis_PartAll(gImage_p3); //Image 3
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EPD_Dis_PartAll(gImage_p4); //Image 4
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EPD_Dis_PartAll(gImage_p5); //Image 5
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EPD_DeepSleep();//Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000); //Delay for 2s.
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#endif
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#if 1 //Demonstration of full screen update with 180-degree rotation, to enable this feature, please change 0 to 1.
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/************Full display(2s)*******************/
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EPD_HW_Init_180(); //Full screen update initialization.
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EPD_WhiteScreen_ALL(gImage_1); //To Display one image using full screen update.
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EPD_DeepSleep(); //Enter the sleep mode and please do not delete it, otherwise it will reduce the lifespan of the screen.
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delay(2000);//Delay for 2s.
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#endif
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#endif
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#if 0 //GUI demostration.
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///////////////////////////GUI///////////////////////////////////////////////////////////////////////////////////
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//Data initialization settings
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Paint_NewImage(ImageBW, EPD_WIDTH, EPD_HEIGHT, 270, WHITE); //Set screen size and display orientation
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/**************Drawing**********************/
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Paint_SelectImage(ImageBW);//Set the virtual canvas data storage location
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Paint_Clear(WHITE);
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//Point.
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Paint_DrawPoint(5, 10, BLACK, DOT_PIXEL_1X1, DOT_STYLE_DFT); //point 1x1.
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Paint_DrawPoint(5, 25, BLACK, DOT_PIXEL_2X2, DOT_STYLE_DFT); //point 2x2.
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Paint_DrawPoint(5, 40, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT); //point 3x3.
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Paint_DrawPoint(5, 55, BLACK, DOT_PIXEL_4X4, DOT_STYLE_DFT); //point 4x4.
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//Line.
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Paint_DrawLine(20, 5, 50, 35, BLACK, LINE_STYLE_SOLID, DOT_PIXEL_1X1); //1x1line 1.
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Paint_DrawLine(50, 5, 20, 35, BLACK, LINE_STYLE_SOLID, DOT_PIXEL_1X1); //1x1line 2.
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//Rectangle.
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Paint_DrawRectangle(20, 5, 50, 35, BLACK, DRAW_FILL_EMPTY, DOT_PIXEL_1X1); //Hollow rectangle 1.
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Paint_DrawRectangle(70, 5, 100, 35, BLACK, DRAW_FILL_FULL, DOT_PIXEL_1X1); //Hollow rectangle 2.
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//Circle.
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Paint_DrawCircle(30, 50, 10, BLACK, DRAW_FILL_EMPTY, DOT_PIXEL_1X1); //Hollow circle.
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Paint_DrawCircle(80, 50, 10, BLACK, DRAW_FILL_FULL, DOT_PIXEL_1X1); //solid circle.
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EPD_HW_Init_GUI(); //EPD init GUI
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EPD_Display(ImageBW);//display image
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EPD_DeepSleep();//EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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delay(2000); //2s
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/***********String&Number***************************/
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Paint_SelectImage(ImageBW);//Set the virtual canvas data storage location
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Paint_Clear(WHITE);
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Paint_DrawString_EN(0, 0, "Good Display", &Font8, BLACK, WHITE); //Font8
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Paint_DrawString_EN(0, 10, "Good Display", &Font12, BLACK, WHITE); //Font12
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Paint_DrawString_EN(0, 25, "Good Display", &Font16, BLACK, WHITE); //Font16
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Paint_DrawString_EN(0, 45, "Good Display", &Font20, BLACK, WHITE); //Font20
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Paint_DrawNum(0, 80, 123456789, &Font8, BLACK, WHITE); //Font8
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Paint_DrawNum(0, 90, 123456789, &Font12, BLACK, WHITE); //Font12
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Paint_DrawNum(0, 105, 123456789, &Font16, BLACK, WHITE); //Font16
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EPD_HW_Init_GUI(); //EPD init GUI
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EPD_Display(ImageBW); //display image
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EPD_DeepSleep();//EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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delay(2000); //2s
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#endif
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//Clear
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EPD_HW_Init(); //EPD init
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EPD_WhiteScreen_White();//EPD Clear
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EPD_DeepSleep();//EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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delay(2000); //2s
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while(1); // The program stops here
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}
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