91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/* JTR 2020-09-14: Created, Thermostat with User Interface
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*/
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#include <Arduino.h>
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#include <SPI.h>
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#include <DHT_U.h>
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 64 // OLED display height, in pixels
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// Declaration for SSD1306 display connected using software SPI (default case):
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#define OLED_CLK 14 // OLED: D0
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#define OLED_MOSI 13 // OLED: D1
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#define OLED_RST 22 // OLED: RES
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#define OLED_DC 17 // (ESP32-"TX2") OLED: DC
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#define OLED_CS 23 // OLED: CS
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#define DHTPIN 26
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#define DHTTYPE DHT11 // DHT 11
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#define POTI_IN 27
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT,OLED_MOSI, OLED_CLK, OLED_DC, OLED_RST, OLED_CS);
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DHT dht(DHTPIN, DHTTYPE);
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void setup() {
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Serial.begin(115200);
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delay(1250);
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Serial.println("GO!.");
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dht.begin();
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if(!display.begin(SSD1306_SWITCHCAPVCC)) {
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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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// Show initial display buffer contents on the screen --
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// the library initializes this with an Adafruit splash screen.
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display.clearDisplay();
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display.display();
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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); // Start at top-left corner
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display.println(F("Starting..."));
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display.display();
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delay(1000);
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}
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void loop() {
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float h = dht.readHumidity();
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// Read temperature as Celsius (the default)
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float t = dht.readTemperature();
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// Read temperature as Fahrenheit (isFahrenheit = true)
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float f = dht.readTemperature(true);
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if (isnan(h) || isnan(t) || isnan(f)) {
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Serial.println(F("Failed to read from DHT sensor!"));
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return;
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}
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Serial.print(F("Humidity: "));
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Serial.print(h);
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Serial.print(F("% Temperature: "));
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Serial.print(t);
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Serial.print(F("°C "));
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Serial.print(f);
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Serial.println(F("°F"));
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int potiLvl=analogRead(POTI_IN); // -> 0-4095
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Serial.print("Poti: ");
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Serial.println(potiLvl);
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display.clearDisplay();
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display.setTextSize(2); // Normal 1:1 pixel scale
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display.setTextColor(SSD1306_WHITE); // Draw white text
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display.setCursor(0,0); // Start at top-left corner
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display.println(String(potiLvl));
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display.display();
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delay(500);
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}
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