Created
July 12, 2014 21:39
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Arduino sketch to display temp+humidty data from DHT11 sensor on ST7735 TFT LCD
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#include <Adafruit_GFX.h> // Core graphics library | |
#include <Adafruit_ST7735.h> // Hardware-specific library | |
#include <SPI.h> | |
#include <dht.h> // dht temp humidity sensor library | |
#define cs 10 | |
#define dc 9 | |
#define rst 8 | |
#define DHT11_PIN 3 | |
dht DHT; | |
Adafruit_ST7735 tft = Adafruit_ST7735(cs, dc, rst); | |
void setup(void){ | |
tft.initR(INITR_BLACKTAB); | |
tft.fillScreen(ST7735_BLACK); | |
tft.drawRoundRect(20,28,90,21,5,0x001f); | |
tft.setCursor(35,15); //x,y | |
tft.print("TEMPERATURE"); | |
tft.drawRoundRect(20,66,90,21,5,0x001f); | |
tft.setCursor(40,55); //x,y | |
tft.print("HUMIDITY"); | |
} | |
void loop (){ | |
int chk=DHT.read11(DHT11_PIN); | |
tft.setCursor(40, 31); | |
tft.setTextSize(2); | |
tft.println((float)DHT.temperature,1); | |
tft.setCursor(40, 70); | |
tft.setTextSize(2); | |
tft.print(DHT.humidity,1); | |
delay(10000); | |
tft.fillRoundRect(21,29,88,19,5,0x0000); | |
tft.fillRoundRect(21,67,88,19,5,0x0000); | |
} |
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