Jouer avec les écrans LCD

Comment utiliser des écrans LCD ?

Matériel

• Wemos D1 mini - 2,35€ - https://fr.aliexpress.com/item/1pcs-D1-mini-Mini-NodeMcu-4M-bytes-Lua-WIFI-Internet-of-Things-development-board-based-ESP8266/32666984035.html
• des cables - qq cts
• un écran LCD 128X64 - 2,2€ - https://fr.aliexpress.com/item/WAVGAT-Blue-color-128X64-OLED-LCD-LED-Display-Module-For-Arduino-0-96-I2C-IIC-SPI/32830523451.html

Prix pour un système : 4,55€

tuto

• Voir tuto pour écran OLED 128X64 pixels

Afficher un logo Science Hack Day défilant

/** modifs en cours.

* The MIT License (MIT)
*
* Copyright (c) 2016 by Daniel Eichhorn
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*/
/*

/////////////////////////////////////////////////////////////////// // BROCHAGE // // _________________ // // / D1 mini \ // // - |[ ]RST TX[ ]| - // // - |[ ]A0 RX[ ]| - // // - |[ ]D0 D1[ ]| - // // SCL - |[X]D5 D2[ ]| - // // SDA - |[X]D6 D3[ ]| - // // - |[ ]D7 D4[ ]| LED_BUILTIN // // - |[ ]D8 GND[X]| - // // - |[ ]3V3 . 5V[X]| - // // | +---+ | // // |_______|USB|_______| // ///////////////////////////////////////////////////////////////////

• /

// Include the correct display library // For a connection via I2C using Wire include

1. include <Wire.h> // Only needed for Arduino 1.6.5 and earlier
2. include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`

// or #include "SH1106.h" alis for `#include "SH1106Wire.h"` // For a connection via I2C using brzo_i2c (must be installed) include // #include <brzo_i2c.h> // Only needed for Arduino 1.6.5 and earlier // #include "SSD1306Brzo.h" // #include "SH1106Brzo.h" // For a connection via SPI include // #include <SPI.h> // Only needed for Arduino 1.6.5 and earlier // #include "SSD1306Spi.h" // #include "SH1106SPi.h"

// Include custom images

1. include "images.h"

// Initialize the OLED display using SPI // D5 -> CLK // D7 -> MOSI (DOUT) // D0 -> RES // D2 -> DC // D8 -> CS // SSD1306Spi display(D0, D2, D8); // or // SH1106Spi display(D0, D2);

// Initialize the OLED display using brzo_i2c // D3 -> SDA // D5 -> SCL // SSD1306Brzo display(0x3c, D3, D5); // or // SH1106Brzo display(0x3c, D3, D5);

// Initialize the OLED display using Wire library SSD1306 display(0x3c, D6, D5); // SH1106 display(0x3c, D3, D5);

1. define DEMO_DURATION 3000

typedef void (*Demo)(void);

int demoMode = 0; int counter = 1; int i =0; int a = 0;

void setup() {

 Serial.begin(115200);
 Serial.println();
 Serial.println();

 // Initialising the UI will init the display too.
 display.init();

 display.flipScreenVertically();
 display.setFont(ArialMT_Plain_10);

}

void drawFontFaceDemo() {

   // Font Demo1
   // create more fonts at http://oleddisplay.squix.ch/
   display.setTextAlignment(TEXT_ALIGN_CENTER);
   display.setFont(ArialMT_Plain_10);
   display.drawString(0, 0, "SCIENCE HACK DAY");
 //  display.setFont(ArialMT_Plain_24);
  // display.drawString(62,16, "?=+");

// display.setFont(ArialMT_Plain_24);

 //  display.drawString(0, 26, "Hello world");

}

void drawTextFlowDemo() {

   display.setFont(ArialMT_Plain_10);
   display.setTextAlignment(TEXT_ALIGN_LEFT);
   display.drawStringMaxWidth(0, 0, 128,
     "Lorem ipsum\n dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore." );

}

void drawTextAlignmentDemo() {

   // Text alignment demo
 display.setFont(ArialMT_Plain_10);

 // The coordinates define the left starting point of the text
 display.setTextAlignment(TEXT_ALIGN_LEFT);
 display.drawString(0, 10, "Left aligned (0,10)");

 // The coordinates define the center of the text
 display.setTextAlignment(TEXT_ALIGN_CENTER);
 display.drawString(64, 22, "Center aligned (64,22)");

 // The coordinates define the right end of the text
 display.setTextAlignment(TEXT_ALIGN_RIGHT);
 display.drawString(128, 33, "Right aligned (128,33)");

}

void drawRectDemo() {

     // Draw a pixel at given position
   for (int i = 0; i < 10; i++) {
     display.setPixel(i, i);
     display.setPixel(10 - i, i);
   }
   display.drawRect(12, 12, 20, 20);

   // Fill the rectangle
   display.fillRect(14, 14, 17, 17);

   // Draw a line horizontally
   display.drawHorizontalLine(0, 40, 20);

   // Draw a line horizontally
   display.drawVerticalLine(40, 0, 20);

}

void drawCircleDemo() {

 for (int i=1; i < 8; i++) {
   display.setColor(WHITE);
   display.drawCircle(32, 32, i*3);
   if (i % 2 == 0) {
     display.setColor(BLACK);
   }
   display.fillCircle(96, 32, 32 - i* 3);
 }

}

void drawProgressBarDemo() {

 int progress = (counter / 5) % 100;
 // draw the progress bar
 display.drawProgressBar(0, 32, 120, 10, progress);

 // draw the percentage as String
 display.setTextAlignment(TEXT_ALIGN_CENTER);
 display.drawString(64, 15, String(progress) + "%");

}

void drawImageDemo() {

   // see http://blog.squix.org/2015/05/esp8266-nodemcu-how-to-create-xbm.html
   // on how to create xbm files
   display.drawXbm(i-50, 16, WiFi_Logo_width, WiFi_Logo_height, WiFi_Logo_bits);
   delay(50);
   i = i+1;
   a = a+2;
   if (i>178){
     i=0;
     }
     if (a>100){
       a = 0;
     }

}

Demo demos[] = {/*drawFontFaceDemo, drawTextFlowDemo, drawTextAlignmentDemo, drawRectDemo, drawCircleDemo, drawProgressBarDemo, */drawImageDemo}; int demoLength = (sizeof(demos) / sizeof(Demo)); long timeSinceLastModeSwitch = 0;

void loop() {

 // clear the display
 display.clear();
 // draw the current demo method
 demos[demoMode]();

 display.setTextAlignment(TEXT_ALIGN_RIGHT);
 display.drawString(10, 128, String(millis()));
 // write the buffer to the display
 display.display();

 if (millis() - timeSinceLastModeSwitch > DEMO_DURATION) {
   demoMode = (demoMode + 1)  % demoLength;
   timeSinceLastModeSwitch = millis();
 }
 counter++;
 delay(10);

}