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+#include <Arduino.h>
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+#include <Thread.h>
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+#include <SevenSegmentExtended.h> // DisplayLib // Extended TM1637 library https://github.com/bremme/arduino-tm1637
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+#include "DHT.h" // DHTlib
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+#define DHTPIN 5 // DHTsensorSetting // DHT pin
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+#define DHTTYPE DHT22 // DHTsensorSetting // DHT11 / DHT21 / DHT22
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+DHT dht(DHTPIN, DHTTYPE); // DHTsensorSetting
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+const byte PIN_CLK = 2; // DisplaySetting // CLK pin
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+const byte PIN_DIO = 3; // DisplaySetting // DIO pin
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+bool displayOn = false; // DisplaySetting // Boolian for store display power status
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+SevenSegmentExtended display(PIN_CLK, PIN_DIO); // DisplaySetting
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+const byte buttonPin = 4; // ButtonSetting // Button pin (a 10K resistor is necessary)
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+long buttonPressed = 0; // ButtonSetting // Button ms pressed counter
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+long previousButtonMillis = 0; // ButtonSetting // Button previous press counter
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+byte buttonView = 0; // ButtonSetting // Button viewing state
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+int buttonInterval = 10000; // ButtonSetting // Interval for highlighting 4-Digit Display after pressing button
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+int buttonLongPress = 2500; // ButtonSetting // Interval for long press button action
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+int buttonCheck = 200; // ButtonSetting // Interval for checking button state
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+
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+// Threads:
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+Thread pressButtonThread = Thread(); // Create thread for button state checking
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+
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+void setup() {
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+ Serial.begin(9600); // Initializes the Serial connection @ 9600 baud for debug
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+ dht.begin(); // DHTsensorSetting // Initializes the sensor
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+ display.begin(); // DisplaySetting // Initializes the display
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+ displayOn = true; // Display On
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+ display.setBacklight(100); // Display On - set the brightness to 100 %
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+ display.print("INIT-TINI"); // Display initialization
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+ pinMode(buttonPin, INPUT); // ButtonSetting
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+ // Button state cheking thread:
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+ pressButtonThread.onRun(pressButton);
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+ pressButtonThread.setInterval(buttonCheck);
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+ display.off(); // Display Off
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+ displayOn = false; // Display Off
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+}
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+
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+void loop() {
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+ // Threads init:
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+ if (pressButtonThread.shouldRun())
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+ pressButtonThread.run();
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+ // Serial interaction:
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+ if (Serial.available() > 0) {
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+ int incomingByte = Serial.read() - 48;
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+ if (incomingByte == 5) {
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+ float humFloat;
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+ readDHThum(&humFloat);
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+ Serial.println(humFloat);
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+ }
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+ if (incomingByte == 6) {
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+ float tempFloat;
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+ readDHTtemp(&tempFloat);
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+ Serial.println(tempFloat);
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+ }
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+ }
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+}
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+
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+// Check button pressing thread
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+void pressButton() {
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+ // Display off after buttonInterval ms slack
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+ unsigned long currentMillis = millis();
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+ if (currentMillis - previousButtonMillis > buttonInterval) {
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+ previousButtonMillis = currentMillis;
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+ if (displayOn == true) {
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+ display.off();
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+ displayOn = false;
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+ }
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+ }
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+
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+ if (digitalRead(buttonPin) == HIGH) {
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+ buttonPressed = buttonPressed + 200;
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+ if (buttonPressed > buttonLongPress) {
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+ buttonPressed = 0;
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+ longPress();
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+ }
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+ previousButtonMillis = currentMillis;
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+ display.on();
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+ displayOn = true;
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+ if (buttonView == 0) {
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+ float tempFloat;
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+ readDHTtemp(&tempFloat);
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+ int tempInt = (int)tempFloat;
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+ if (tempInt < 0)
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+ tempInt = tempInt * (-1);
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+ byte rawData[4];
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+ rawData[0] = display.encode(tempInt / 10);
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+ rawData[1] = display.encode(tempInt % 10);
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+ rawData[2] = B01100011; // degree
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+ rawData[3] = display.encode('c');
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+ display.printRaw(rawData);
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+ } else if (buttonView == 1) {
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+ float humFloat;
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+ readDHThum(&humFloat);
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+ int humInt = (int)humFloat;
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+ byte rawData[4];
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+ rawData[0] = display.encode('h');
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+ rawData[1] = display.encode('u');
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+ rawData[2] = display.encode(humInt / 10);
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+ rawData[3] = display.encode(humInt % 10);
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+ display.printRaw(rawData);
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+ }
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+ if (buttonView < 1) buttonView += 1;
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+ else buttonView = 0;
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+ } else {
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+ buttonPressed = 0;
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+ }
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+}
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+
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+
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+// DHT Temperature
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+void readDHTtemp(float *a) {
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+ float t = dht.readTemperature();
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+ *a = t;
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+}
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+
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+// DHT Humidity
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+void readDHThum(float *a) {
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+ float h = dht.readHumidity();
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+ *a = h;
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+}
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+
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+void longPress() {
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+ display.print("-doctor-equivalent-me-");
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+}
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