66 lines
1.3 KiB
C++
66 lines
1.3 KiB
C++
#include <Wire.h>
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#include "lib/esp8266-dht22/dht22.h"
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#include "lib/esp8266-dht22/dht22.c"
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#include "lib/HC_LiquidCrystal_I2C/HC_LiquidCrystal_I2C.h"
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#include "lib/HC_LiquidCrystal_I2C/HC_LiquidCrystal_I2C.cpp"
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// ~~~
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// LCD Display Settings
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#define LCD_PIN_SDA 12
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#define LCD_PIN_SCL 14
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// DHT22 Settings
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#define DHT_TYPE DHT22
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// Pin D1 on the NodeMCU v0.9
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#define DHT_PIN_DATA 5
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// ~~~
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HC_LiquidCrystal_I2C lcd(0x3F,20,4);
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// ~~~
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void dht_init() {
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Serial.print("Initialising the DHT - ");
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DHT_init(DHT_PIN_DATA, DHT_TYPE, 1);
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DHT_begin();
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Serial.println("done");
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Serial.print("Waiting to warm DHT22 up - ");
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delay(2000 - millis()); // Give the DHT22 time to warm up
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}
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void lcd_init() {
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// Deprecated, but in this instance there's nothing we can do about it
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// since we aren't running I2C over the default pins (default pins? what
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// default pins?)
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Wire.pins(LCD_PIN_SDA, LCD_PIN_SCL);
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lcd.begin();
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}
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void setup() {
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lcd_init();
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dht_init();
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}
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void loop() {
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lcd.backlight();
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float temp, humidity;
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lcd.setCursor(0, 0);
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temp = readTemperature(false);
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humidity = readHumidity();
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lcd.print("Temperature: ");
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lcd.print(temp);
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lcd.print("C");
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lcd.setCursor(0, 1);
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lcd.print("Humidity: ");
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lcd.print(humidity);
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lcd.print("%");
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delay(1000);
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}
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