Seeed Grove Beginner Kit - Page 50

Software Code
Open Arduino IDE.
Install the Grove Temperature and Humidity Sensor(DHT11) library: Navigate to
Sketch -> Include Library -> Manage Libraries… and Search for the keyword “Grove
Temperature and Humidity Sensor(DHT11)” in the Library Manager, then install.
Copy the following code, click Verify to check for syntax errors. Verify that there are no
errors, and you can upload the code.
//Temperature and Humidity Sensor
//Temperature and Humidity Sensor
#include "DHT.h"
#include <Arduino.h>
#include <U8x8lib.h>
#define DHTPIN 3 // what pin we're connected to
#define DHTTYPE DHT11 // DHT 11
DHT dht(DHTPIN, DHTTYPE);
U8X8_SSD1306_128X64_ALT0_HW_I2C u8x8(/* reset=*/ U8X8_PIN_NONE);
void setup(void) {
Serial.begin(9600);
Serial.println("DHTxx test!");
dht.begin();
u8x8.begin();
u8x8.setPowerSave(0);
u8x8.setFlipMode(1);
}
void loop(void) {
float temp, humi;
temp = dht.readTemperature();
humi = dht.readHumidity();
u8x8.setFont(u8x8_font_chroma48medium8_r);
u8x8.setCursor(0, 33);
u8x8.print("Temp:");
u8x8.print(temp);
u8x8.print("C");
u8x8.setCursor(0,50);
u8x8.print("Humidity:");
u8x8.print(humi);
u8x8.print("%");
u8x8.refreshDisplay();
delay(200);
}
49
Grove Beginner Kit For Arduino®