300 lines
12 KiB
C++
300 lines
12 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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//WiFi
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#include <WiFi.h>
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unsigned char ImageBW[EPD_ARRAY];//Define canvas space
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//WiFi username and password setting
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/*
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const char* ssid = "GOODISPLAY";
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const char* password = "84619565@";
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*/
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const char* ssid = "CU_BBc6"; //WiFi username
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const char* password = "za9g8jvb"; //WiFi password
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//String WifiData;
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int num;
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WiFiServer server(8080); //Default unchanged
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//IPAddress The local IP address can be set by first querying the local network segment through ImageToWiFi upper computer software.
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IPAddress staticIP(192, 168, 2, 208); //Change network segment and IP number
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IPAddress gateway(192, 168, 2, 1); //Change network segment
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IPAddress subnet(255, 255, 255, 0); //Default unchanged
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IPAddress dns1(192, 168, 2,1); //Change network segment
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IPAddress dns2(192, 168, 2,1); //Change network segment
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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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//WiFi
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Serial.begin(115200);
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// We start by connecting to a WiFi network
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Serial.println();
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(ssid);
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//WIFI Parameter settings
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WiFi.persistent(true);
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WiFi.mode(WIFI_STA); // switch off AP
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WiFi.setAutoConnect(true);
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WiFi.setAutoReconnect(true);
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WiFi.disconnect();
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//Pass in static IP address and gateway parameters DNS1, And 2
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if (WiFi.config(staticIP, gateway, subnet, dns1, dns2) == false) {
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Serial.println("Configuration failed.");
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}
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WiFi.begin(ssid, password); //DNS1 DNS2
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Connect1:
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int ConnectTimeout = 60; // 30 seconds
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while (WiFi.status() != WL_CONNECTED) {
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delay(1000);
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Serial.print(".");
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Serial.print(WiFi.status());
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if (--ConnectTimeout <= 0)
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{
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Serial.println();
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Serial.println("WiFi connect timeout");
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//goto Connect1;
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delay(10);
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ESP.restart(); //Reset ESP32 to ensure WiFi connection is OK
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}
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}
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Serial.println("");
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Serial.println("WiFi connected.");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP()); //local IP
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server.begin();
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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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/*
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Operation steps:
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1. Use the ImageToWiFi upper computer software to locate the local network segment.
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2. Set the device IP address.
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3. Set the network segment and IP number of the target device on the upper computer.
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4. Transfer image data to the device through ImageToWiFi software. Different electronic paper initialization and data sending commands may vary, and the actual electronic paper driver program shall prevail.
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*/
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void loop() {
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long i;
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long num;
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long dataLong=EPD_ARRAY;
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//If WiFi is connected, e-paper screen clearing
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EPD_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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while(1)
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{
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while (WiFi.status() != WL_CONNECTED) {
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Serial.println("Reconnecting to WiFi...");
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WiFi.disconnect(); //Disconnect WiFi
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WiFi.reconnect(); //Reconnect WiFi
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}
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WiFiClient client = server.available(); // listen for incoming clients
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if (client)
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{
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EPD_Init(); //Full screen update initialization.
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while (client.connected()) // loop while the client's connected
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{
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if (client.available()) // if there's bytes to read from the client,
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{
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//black and white datas////////////////////
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if(num==0)
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EPD_W21_WriteCMD(0x10); //Old Data
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if(num<dataLong) //black and white
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EPD_W21_WriteDATA(client.read()); //Write Old Data，This is necessary
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if(num==dataLong)
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EPD_W21_WriteCMD(0x13);//New Data
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if(num>=dataLong&&num<dataLong*2) //Red and White
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EPD_W21_WriteDATA(~client.read()); //Write New Data
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if(num>=dataLong*2) //Read excess data
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client.read(); //Read only without processing
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num++; //count add
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}
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}
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EPD_Update();//EPD 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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num=0; //RESET 0
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// close the connection:
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client.println("OK");//Send data and receive OK signal
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client.stop();
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}
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}
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#if 1 //Full screen update, fast update, and partial update demostration.
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EPD_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_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_Init_Fast(); //Fast update initialization.
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EPD_WhiteScreen_ALL_Fast(gImage_2); //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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/************4 Gray update mode(2s)*******************/
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EPD_Init_4G(); //Fast update initialization.
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EPD_WhiteScreen_ALL_4G(gImage_4G1); //To display one image using 4 gray 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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#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_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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EPD_Init_Part(); //Pa update initialization.
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for(i=0;i<6;i++)
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{
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EPD_Dis_Part_Time(200,180,Num[1],Num[0],gImage_numdot,Num[0],Num[i],5,104,48); //x,y,DATA-A~E,Resolution 48*104
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}
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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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EPD_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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#endif
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#if 0 //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_Init(); //Full screen update initialization.
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EPD_WhiteScreen_White(); //Clear screen function.
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EPD_Init_Part();
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EPD_Dis_PartAll(gImage_p1);
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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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EPD_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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#endif
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#if 0 //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_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 1 //GUI Demo(GUI examples can display points, lines, rectangles, circles, letters, numbers, etc).
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//Data initialization settings.
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Paint_NewImage(ImageBW, EPD_WIDTH, EPD_HEIGHT, 0, WHITE); //Set canvas parameters, GUI image rotation, please change 0 to 0/90/180/270.
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Paint_SelectImage(ImageBW); //Select current settings.
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/**************Drawing demonstration**********************/
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Paint_Clear(WHITE); //Clear canvas.
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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, 10, 70, 60, BLACK, LINE_STYLE_SOLID, DOT_PIXEL_1X1); //1x1line 1.
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Paint_DrawLine(70, 10, 20, 60, BLACK, LINE_STYLE_SOLID, DOT_PIXEL_1X1); //1x1line 2.
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//Rectangle.
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Paint_DrawRectangle(20, 10, 70, 60, BLACK, DRAW_FILL_EMPTY, DOT_PIXEL_1X1); //Hollow rectangle 1.
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Paint_DrawRectangle(85, 10, 130, 60, BLACK, DRAW_FILL_FULL, DOT_PIXEL_1X1); //Hollow rectangle 2.
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//Circle.
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Paint_DrawCircle(150, 90, 30, BLACK, DRAW_FILL_EMPTY, DOT_PIXEL_1X1); //Hollow circle.
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Paint_DrawCircle(200, 90, 30, BLACK, DRAW_FILL_FULL, DOT_PIXEL_1X1); //solid circle.
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EPD_Init(); //Full screen update initialization.
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EPD_Display(ImageBW); //Display GUI image.
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EPD_DeepSleep();//EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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delay(2000); //Delay for 2s.
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/***********Letter demo***************************/
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Paint_Clear(WHITE); //Clear canvas.
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Paint_DrawString_EN(0, 0, "Good Display", &Font8, BLACK, WHITE); //5*8.
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Paint_DrawString_EN(0, 10, "Good Display", &Font12, BLACK, WHITE); //7*12.
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Paint_DrawString_EN(0, 25, "Good Display", &Font16, BLACK, WHITE); //11*16.
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Paint_DrawString_EN(0, 45, "Good Display", &Font20, BLACK, WHITE); //14*20.
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Paint_DrawString_EN(0, 80, "Good Display", &Font24, BLACK, WHITE); //17*24.`
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Paint_DrawNum(0, 120, 123456789, &Font8, BLACK, WHITE); //5*8.
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Paint_DrawNum(0, 130, 123456789, &Font12, BLACK, WHITE); //7*12.
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Paint_DrawNum(0, 155, 123456789, &Font16, BLACK, WHITE); //11*16.
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Paint_DrawNum(0, 175, 123456789, &Font20, BLACK, WHITE); //14*20.
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Paint_DrawNum(0, 210, 123456789, &Font24, BLACK, WHITE); //17*24.
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EPD_Init(); //Full screen update initialization.
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EPD_Display(ImageBW);//Display GUI image.
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EPD_DeepSleep(); //EPD_DeepSleep,Sleep instruction is necessary, please do not delete!!!
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delay(2000); //Delay for 2s.
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#endif
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//Clear
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EPD_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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while(1); // The program stops here
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}
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