先安裝這兩個library
https://github.com/WereCatf/Adafruit-PCD8544-Nokia-5110-LCD-library
https://github.com/adafruit/Adafruit-GFX-Library
示範文件有誤需修改
// If using an ESP8266, use this option. Comment out the other options.
// ESP8266 Hardware SPI (faster, but must use certain hardware pins):
// SCK is LCD serial clock (SCLK) - this is pin 14 on Huzzah ESP8266
// MOSI is LCD DIN - this is pin 13 on an Huzzah ESP8266
// pin 12 - Data/Command select (D/C) on an Huzzah ESP8266
// pin 4 - LCD chip select (CS)
// pin 5 - LCD reset (RST)
Adafruit_PCD8544 display = Adafruit_PCD8544(12, 4, 5); // Pin D/C , CE , RST
37行註解掉，使用第87行
//text demo
display.clearDisplay();
display.setCursor(0, 0);
display.print("Connected to SSID:");
display.println(ssid);
display.print("IP address:");
display.println(WiFi.localIP());
display.display(); //將訊息傳送到LCD
PS: 第 124行對比度調太低(40)某些LCD會顯示不出畫面
=============demo=========================
/*********************************************************************
This is an example sketch for our Monochrome Nokia 5110 LCD Displays
Pick one up today in the adafruit shop!
------> http://www.adafruit.com/products/338
These displays use SPI to communicate, 4 or 5 pins are required to
interface
Adafruit invests time and resources providing this open source code,
please support Adafruit and open-source hardware by purchasing
products from Adafruit!
Written by Limor Fried/Ladyada for Adafruit Industries.
BSD license, check license.txt for more information
All text above, and the splash screen must be included in any redistribution
*********************************************************************/
#include <SPI.h>
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>
// Software SPI (slower updates, more flexible pin options):
// pin 7 - Serial clock out (SCLK)
// pin 6 - Serial data out (DIN)
// pin 5 - Data/Command select (D/C)
// pin 4 - LCD chip select (CS)
// pin 3 - LCD reset (RST)
//Adafruit_PCD8544 display = Adafruit_PCD8544(7, 6, 5, 4, 3);
// Hardware SPI (faster, but must use certain hardware pins):
// SCK is LCD serial clock (SCLK) - this is pin 13 on Arduino Uno
// MOSI is LCD DIN - this is pin 11 on an Arduino Uno
// pin 5 - Data/Command select (D/C)
// pin 15 - LCD chip select (CS)
// pin 4 - LCD reset (RST)
Adafruit_PCD8544 display = Adafruit_PCD8544(5, 15, 4);
// Note with hardware SPI MISO and SS pins aren't used but will still be read
// and written to during SPI transfer. Be careful sharing these pins!
/******************************************************************
ESP8266 with PCD8544 display
== Parts ==
* Adafruit Huzzah ESP8266 https://www.adafruit.com/products/2471
* Adafruit PCD8544/5110 display https://www.adafruit.com/product/338
* Adafruit USB to TTL serial cable https://www.adafruit.com/products/954
== Connection ==
USB TTL Huzzah Nokia 5110 Description
ESP8266 PCD8544
GND GND Ground
3V VCC 3.3V from Huzzah to display
14 CLK Output from ESP SPI clock
13 DIN Output from ESP SPI MOSI to display data input
12 D/C Output from display data/command to ESP
#5 CS Output from ESP to chip select/enable display
#4 RST Output from ESP to reset display
LED 3.3V to turn backlight on
GND (blk) GND Ground
5V (red) V+ 5V power from PC or charger
TX (green) RX Serial data from IDE to ESP
RX (white) TX Serial data to ESP from IDE
******************************************************************/
// ESP8266 Software SPI (slower updates, more flexible pin options):
// pin 14 - Serial clock out (SCLK)
// pin 13 - Serial data out (DIN)
// pin 12 - Data/Command select (D/C)
// pin 5 - LCD chip select (CS)
// pin 4 - LCD reset (RST)
//Adafruit_PCD8544 display = Adafruit_PCD8544(14, 13, 12, 5, 4);
// If using an ESP8266, use this option. Comment out the other options.
// ESP8266 Hardware SPI (faster, but must use certain hardware pins):
// SCK is LCD serial clock (SCLK) - this is pin 14 on Huzzah ESP8266
// MOSI is LCD DIN - this is pin 13 on an Huzzah ESP8266
// pin 12 - Data/Command select (D/C) on an Huzzah ESP8266
// pin 5 - LCD chip select (CS)
// pin 4 - LCD reset (RST)
//Adafruit_PCD8544 display = Adafruit_PCD8544(12, 5, 4);
#define NUMFLAKES 10
#define XPOS 0
#define YPOS 1
#define DELTAY 2
#define LOGO16_GLCD_HEIGHT 16
#define LOGO16_GLCD_WIDTH 16
static const unsigned char PROGMEM logo16_glcd_bmp[] =
{ B00000000, B11000000,
B00000001, B11000000,
B00000001, B11000000,
B00000011, B11100000,
B11110011, B11100000,
B11111110, B11111000,
B01111110, B11111111,
B00110011, B10011111,
B00011111, B11111100,
B00001101, B01110000,
B00011011, B10100000,
B00111111, B11100000,
B00111111, B11110000,
B01111100, B11110000,
B01110000, B01110000,
B00000000, B00110000 };
void setup() {
Serial.begin(9600);
display.begin();
// init done
// you can change the contrast around to adapt the display
// for the best viewing!
display.setContrast(50);
display.display(); // show splashscreen
delay(2000);
display.clearDisplay(); // clears the screen and buffer
// draw a single pixel
display.drawPixel(10, 10, BLACK);
display.display();
delay(2000);
display.clearDisplay();
// draw many lines
testdrawline();
display.display();
delay(2000);
display.clearDisplay();
// draw rectangles
testdrawrect();
display.display();
delay(2000);
display.clearDisplay();
// draw multiple rectangles
testfillrect();
display.display();
delay(2000);
display.clearDisplay();
// draw mulitple circles
testdrawcircle();
display.display();
delay(2000);
display.clearDisplay();
// draw a circle, 10 pixel radius
display.fillCircle(display.width()/2, display.height()/2, 10, BLACK);
display.display();
delay(2000);
display.clearDisplay();
testdrawroundrect();
delay(2000);
display.clearDisplay();
testfillroundrect();
delay(2000);
display.clearDisplay();
testdrawtriangle();
delay(2000);
display.clearDisplay();
testfilltriangle();
delay(2000);
display.clearDisplay();
// draw the first ~12 characters in the font
testdrawchar();
display.display();
delay(2000);
display.clearDisplay();
// text display tests
display.setTextSize(1);
display.setTextColor(BLACK);
display.setCursor(0,0);
display.println("Hello, world!");
display.setTextColor(WHITE, BLACK); // 'inverted' text
display.println(3.141592);
display.setTextSize(2);
display.setTextColor(BLACK);
display.print("0x"); display.println(0xDEADBEEF, HEX);
display.display();
delay(2000);
// rotation example
display.clearDisplay();
display.setRotation(1); // rotate 90 degrees counter clockwise, can also use values of 2 and 3 to go further.
display.setTextSize(1);
display.setTextColor(BLACK);
display.setCursor(0,0);
display.println("Rotation");
display.setTextSize(2);
display.println("Example!");
display.display();
delay(2000);
// revert back to no rotation
display.setRotation(0);
// miniature bitmap display
display.clearDisplay();
display.drawBitmap(30, 16, logo16_glcd_bmp, 16, 16, 1);
display.display();
// invert the display
display.invertDisplay(true);
delay(1000);
display.invertDisplay(false);
delay(1000);
// draw a bitmap icon and 'animate' movement
testdrawbitmap(logo16_glcd_bmp, LOGO16_GLCD_WIDTH, LOGO16_GLCD_HEIGHT);
}
void loop() {
}
void testdrawbitmap(const uint8_t *bitmap, uint8_t w, uint8_t h) {
uint8_t icons[NUMFLAKES][3];
randomSeed(666); // whatever seed
// initialize
for (uint8_t f=0; f< NUMFLAKES; f++) {
icons[f][XPOS] = random(display.width());
icons[f][YPOS] = 0;
icons[f][DELTAY] = random(5) + 1;
Serial.print("x: ");
Serial.print(icons[f][XPOS], DEC);
Serial.print(" y: ");
Serial.print(icons[f][YPOS], DEC);
Serial.print(" dy: ");
Serial.println(icons[f][DELTAY], DEC);
}
while (1) {
// draw each icon
for (uint8_t f=0; f< NUMFLAKES; f++) {
display.drawBitmap(icons[f][XPOS], icons[f][YPOS], logo16_glcd_bmp, w, h, BLACK);
}
display.display();
delay(200);
// then erase it + move it
for (uint8_t f=0; f< NUMFLAKES; f++) {
display.drawBitmap(icons[f][XPOS], icons[f][YPOS], logo16_glcd_bmp, w, h, WHITE);
// move it
icons[f][YPOS] += icons[f][DELTAY];
// if its gone, reinit
if (icons[f][YPOS] > display.height()) {
icons[f][XPOS] = random(display.width());
icons[f][YPOS] = 0;
icons[f][DELTAY] = random(5) + 1;
}
}
}
}
void testdrawchar(void) {
display.setTextSize(1);
display.setTextColor(BLACK);
display.setCursor(0,0);
for (uint8_t i=0; i < 168; i++) {
if (i == '\n') continue;
display.write(i);
//if ((i > 0) && (i % 14 == 0))
//display.println();
}
display.display();
}
void testdrawcircle(void) {
for (int16_t i=0; i<display.height(); i+=2) {
display.drawCircle(display.width()/2, display.height()/2, i, BLACK);
display.display();
}
}
void testfillrect(void) {
uint8_t color = 1;
for (int16_t i=0; i<display.height()/2; i+=3) {
// alternate colors
display.fillRect(i, i, display.width()-i*2, display.height()-i*2, color%2);
display.display();
color++;
}
}
void testdrawtriangle(void) {
for (int16_t i=0; i<min(display.width(),display.height())/2; i+=5) {
display.drawTriangle(display.width()/2, display.height()/2-i,
display.width()/2-i, display.height()/2+i,
display.width()/2+i, display.height()/2+i, BLACK);
display.display();
}
}
void testfilltriangle(void) {
uint8_t color = BLACK;
for (int16_t i=min(display.width(),display.height())/2; i>0; i-=5) {
display.fillTriangle(display.width()/2, display.height()/2-i,
display.width()/2-i, display.height()/2+i,
display.width()/2+i, display.height()/2+i, color);
if (color == WHITE) color = BLACK;
else color = WHITE;
display.display();
}
}
void testdrawroundrect(void) {
for (int16_t i=0; i<display.height()/2-2; i+=2) {
display.drawRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, BLACK);
display.display();
}
}
void testfillroundrect(void) {
uint8_t color = BLACK;
for (int16_t i=0; i<display.height()/2-2; i+=2) {
display.fillRoundRect(i, i, display.width()-2*i, display.height()-2*i, display.height()/4, color);
if (color == WHITE) color = BLACK;
else color = WHITE;
display.display();
}
}
void testdrawrect(void) {
for (int16_t i=0; i<display.height()/2; i+=2) {
display.drawRect(i, i, display.width()-2*i, display.height()-2*i, BLACK);
display.display();
}
}
void testdrawline() {
for (int16_t i=0; i<display.width(); i+=4) {
display.drawLine(0, 0, i, display.height()-1, BLACK);
display.display();
}
for (int16_t i=0; i<display.height(); i+=4) {
display.drawLine(0, 0, display.width()-1, i, BLACK);
display.display();
}
delay(250);
display.clearDisplay();
for (int16_t i=0; i<display.width(); i+=4) {
display.drawLine(0, display.height()-1, i, 0, BLACK);
display.display();
}
for (int8_t i=display.height()-1; i>=0; i-=4) {
display.drawLine(0, display.height()-1, display.width()-1, i, BLACK);
display.display();
}
delay(250);
display.clearDisplay();
for (int16_t i=display.width()-1; i>=0; i-=4) {
display.drawLine(display.width()-1, display.height()-1, i, 0, BLACK);
display.display();
}
for (int16_t i=display.height()-1; i>=0; i-=4) {
display.drawLine(display.width()-1, display.height()-1, 0, i, BLACK);
display.display();
}
delay(250);
display.clearDisplay();
for (int16_t i=0; i<display.height(); i+=4) {
display.drawLine(display.width()-1, 0, 0, i, BLACK);
display.display();
}
for (int16_t i=0; i<display.width(); i+=4) {
display.drawLine(display.width()-1, 0, i, display.height()-1, BLACK);
display.display();
}
delay(250);
}
