some arduino sketches
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#define SSD1306_NO_SPLASH
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// OLED display width and height, in pixels
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#define SCREEN_WIDTH 128
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#define SCREEN_HEIGHT 32
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#define OLED_RESET -1
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// i2c address for oled
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///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
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#define SCREEN_ADDRESS 0x3C
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#include <Adafruit_SSD1306.h>
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#include <splash.h>
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#include <Adafruit_GrayOLED.h>
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#include <gfxfont.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SPITFT.h>
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#include <Adafruit_SPITFT_Macros.h>
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#include <LiquidCrystal_I2C.h>
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// set the LCD address to 0x27 for a 16 chars and 2 line display
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LiquidCrystal_I2C lcd(0x27, 16, 2);
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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void setup() {
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lcd.init();
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lcd.backlight();
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lcd.setCursor(0, 0);
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lcd.print("0x123456789abcde");
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lcd.setCursor(0, 1);
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lcd.print("fghijklmnopqrstu");
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Serial.begin(115200);
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// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
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if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
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Serial.println(F("SSD1306 allocation failed"));
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for (;;); // Don't proceed, loop forever
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}
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display.display();
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delay(50); // Pause for 2 seconds
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// Clear the buffer
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display.clearDisplay();
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testdrawstyles(); // Draw 'stylized' characters
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panic();
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//
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// // Invert and restore display, pausing in-between
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// display.invertDisplay(true);
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// delay(1000);
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// display.invertDisplay(false);
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// delay(1000);
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}
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void panic() {
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for (;;) {
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display.invertDisplay(true);
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delay(1000);
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}
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}
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void loop()
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{
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}
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#define LINE_HEIGHT_PX 9
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void testdrawstyles(void) {
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display.clearDisplay();
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display.setTextSize(1); // Normal 1:1 pixel scale
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display.setTextColor(SSD1306_WHITE); // Draw white text
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display.setCursor(0, 0 * LINE_HEIGHT_PX);
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display.println(F("123456789112345678921"));
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display.setCursor(0, 1 * LINE_HEIGHT_PX);
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display.println(F("234567893123456789412"));
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display.setCursor(0, 2 * LINE_HEIGHT_PX);
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display.println(F("345678951234567896123"));
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display.display();
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display.startscrollright(0x00, 0xFF);
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/*
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display.setTextColor(SSD1306_BLACK, SSD1306_WHITE); // Draw 'inverse' text
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display.println(3.141592);
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display.setTextSize(2); // Draw 2X-scale text
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display.setTextColor(SSD1306_WHITE);
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display.print(F("0x")); display.println(0xDEADBEEF, HEX);
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display.display();
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delay(2000);
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*/
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}
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/*
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void testscrolltext(void) {
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display.clearDisplay();
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display.setTextSize(1.5); // Draw 2X-scale text
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display.setTextColor(SSD1306_WHITE);
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display.setCursor(10, 0);
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display.println(F("1337CAFE"));
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display.display(); // Show initial text
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delay(70);
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// Scroll in various directions, pausing in-between:
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display.startscrollright(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrollleft(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrolldiagright(0x00, 0x07);
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delay(2000);
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display.startscrolldiagleft(0x00, 0x07);
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delay(2000);
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display.stopscroll();
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delay(1000);
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}
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*/
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/*
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ESP8266 BlinkWithoutDelay by Simon Peter
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Blink the blue LED on the ESP-01 module
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Based on the Arduino Blink without Delay example
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This example code is in the public domain
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The blue LED on the ESP-01 module is connected to GPIO1
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(which is also the TXD pin; so we cannot use Serial.print() at the same time)
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Note that this sketch uses LED_BUILTIN to find the pin with the internal LED
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*/
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#define IR_RX_PIN 14
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#define IR_TX_PIN 12
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#define SERIAL_BPS 115200
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#define POWER_BUTTON 0xFFEA15
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#define EDIT_BUTTON 0xFF7887
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#define EXIT_BUTTON 0xFF38C7
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#define ONE_BUTTON 0xFF08F7
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#define TWO_BUTTON 0xFF8877
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#define THREE_BUTTON 0xFF48B7
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#define FOUR_BUTTON 0xFFC837
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#define FIVE_BUTTON 0xFF28D7
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#define SIX_BUTTON 0xFFA857
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#define SEVEN_BUTTON 0xFFE817
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#define EIGHT_BUTTON 0xFF18E7
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#define NINE_BUTTON 0xFF9867
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#define ZERO_BUTTON 0xFFB847
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#include <IRremote.h>
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IRrecv irrecv(IR_RX_PIN);
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decode_results results;
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int ledState = LOW;
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volatile byte IRInputState;
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void setup() {
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IrReceiver.begin(IR_RX_PIN, ENABLE_LED_FEEDBACK); // Start the receiver
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pinMode(LED_BUILTIN, OUTPUT);
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Serial.begin(SERIAL_BPS);
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Serial.print("herro booted\n");
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}
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void loop() {
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if (IrReceiver.decode()) {
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Serial.println(IrReceiver.decodedIRData.decodedRawData, HEX);
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IrReceiver.printIRResultShort(&Serial); // optional use new print version
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IrReceiver.resume(); // Enable receiving of the next value
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}
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}
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// Demo the quad alphanumeric display LED backpack kit
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// scrolls through every character, then scrolls Serial
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// input onto the display
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include "Adafruit_LEDBackpack.h"
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Adafruit_AlphaNum4 one = Adafruit_AlphaNum4();
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Adafruit_AlphaNum4 two = Adafruit_AlphaNum4();
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unsigned long ticks;
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void setup() {
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Serial.begin(9600);
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one.begin(0x71); // pass in the address
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two.begin(0x70);
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one.writeDigitRaw(3, 0x0);
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one.writeDigitRaw(0, 0xFFFF);
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one.writeDisplay();
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delay(200);
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one.writeDigitRaw(0, 0x0);
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one.writeDigitRaw(1, 0xFFFF);
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one.writeDisplay();
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delay(200);
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one.writeDigitRaw(1, 0x0);
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one.writeDigitRaw(2, 0xFFFF);
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one.writeDisplay();
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delay(200);
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one.writeDigitRaw(2, 0x0);
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one.writeDigitRaw(3, 0xFFFF);
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one.writeDisplay();
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delay(200);
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one.clear();
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one.writeDisplay();
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two.clear();
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two.writeDisplay();
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one.writeDigitAscii(0, '1');
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one.writeDigitAscii(1, '2');
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one.writeDigitAscii(2, '0');
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one.writeDigitAscii(3, '0');
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two.writeDigitAscii(0, '0');
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two.writeDigitAscii(1, '1');
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two.writeDigitAscii(2, '2');
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two.writeDigitAscii(3, '3');
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one.writeDisplay();
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two.writeDisplay();
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delay(300);
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Serial.println("Start typing to display!");
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}
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char displaybuffer[4] = {' ', ' ', ' ', ' '};
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void loop() {
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ticks = millis();
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sprintf(displaybuffer, "%02d", ticks/1000);
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sprintf(displaybuffer+2, "%02d", ticks-(ticks/1000)*1000);
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Serial.println(displaybuffer);
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// set every digit to the buffer
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two.writeDigitAscii(0, displaybuffer[0]);
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two.writeDigitAscii(1, displaybuffer[1]);
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two.writeDigitAscii(2, displaybuffer[2]);
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two.writeDigitAscii(3, displaybuffer[3]);
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// write it out!
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two.writeDisplay();
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delay(10);
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}
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/*
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ESP8266 Blink by Simon Peter
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Blink the blue LED on the ESP-01 module
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This example code is in the public domain
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The blue LED on the ESP-01 module is connected to GPIO1
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(which is also the TXD pin; so we cannot use Serial.print() at the same time)
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Note that this sketch uses LED_BUILTIN to find the pin with the internal LED
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*/
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#define WWV_SIGNAL_PIN 14
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void ICACHE_RAM_ATTR readLevel();
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volatile byte wwvbInState; // store receiver signal level
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byte prevWwvbInState; // store previous signal level
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unsigned int prevEdgeMillis; // store time signal was read
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byte bitVal; // bit decoded 0, 1 or Mark
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byte badBit; // bad bit, noise detected
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byte prevMark; // store previous mark bit
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void setup() {
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pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
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pinMode(WWV_SIGNAL_PIN, INPUT);
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attachInterrupt(digitalPinToInterrupt(WWV_SIGNAL_PIN), readLevel, CHANGE); // fire interrupt on edge detected
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Serial.begin(9600);
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Serial.print("herro booted\n");
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}
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// the loop function runs over and over again forever
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void loop() {
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if (wwvbInState != prevWwvbInState) {
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pulseValue();
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prevWwvbInState = wwvbInState;
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}
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yield();
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}
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void pulseValue() {
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unsigned int edgeMillis = millis(); // save current time
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badBit = 0; // set noise counter to zero
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if (wwvbInState == 1) { // rising edge
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prevEdgeMillis = edgeMillis; // set previous time to current
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}
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else { // falling edge
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int pulseLength = edgeMillis - prevEdgeMillis; // calculate pulse length millis
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if (pulseLength < 100) { // less than 100ms, noise pulses
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badBit = 1;
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}
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else if (pulseLength < 400) { // 800ms carrier drop mark
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bitVal = 2;
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}
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else if (pulseLength < 700) { // 500ms carrier drop one
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bitVal = 1;
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}
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else { // 200ms carrier drop zero
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bitVal = 0;
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}
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if (badBit == 0) {
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printBitVal();
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}
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}
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}
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void readLevel() {
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wwvbInState = digitalRead(WWV_SIGNAL_PIN); // read signal level
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digitalWrite(LED_BUILTIN, !wwvbInState); // flash WWVB receiver indicator pin
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yield();
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}
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void printBitVal() {
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if ((bitVal == 2) && (prevMark == 0)) {
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Serial.print(" : ");
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prevMark = 1;
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}
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else if ((bitVal == 2) && (prevMark == 1)) {
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Serial.print("\nBit Value: ");
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Serial.print("| ");
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prevMark = 0;
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}
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else {
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Serial.print(bitVal, DEC);
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prevMark = 0;
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}
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}
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/*****************************************************************************
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* Time display functions
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*****************************************************************************/
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void printTime() {
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Serial.print("?x00?y0?f"); // movie cursor to line 1 char 1, clear screen
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}
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// LCD routines to initialize LCD and clear screen
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void lcdInit() { // using P H Anderson Serial LCD driver board
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Serial.print("?G216"); // configure driver for 2 x 16 LCD
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delay(300);
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Serial.print("?BDD"); // set backlight brightness
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delay(300);
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Serial.print("?f"); // clear screen
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Serial.print("?c0"); // set cursor off
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}
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