Initial commit

README.md

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+# Arduino Temperature/Humidity station
+
+## Components
+- OLED Screen SH1106 (128X64)
+- DHT22
+- a button
+
+## Libraries
+- u8g2
+- DHT (from https://github.com/markruys/arduino-DHT)

arduino_temp_oled.ino

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+#include <Arduino.h>
+#include <U8g2lib.h>
+#include <Wire.h>
+#include <DHT.h>
+
+U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);
+DHT dht;
+
+byte i = 0;
+
+void setup(void) {
+  u8g2.begin();
+  u8g2.enableUTF8Print();
+  
+  u8g2.setFontDirection(0);
+  u8g2.clearBuffer();
+  u8g2.setFont(u8g2_font_luRS08_tf);  // choose a suitable font
+  u8g2.drawStr(40,35,"Welcome !");
+  u8g2.sendBuffer();
+
+  pinMode(2, INPUT);
+  dht.setup(6);
+  delay(1500);
+}
+
+void loop(void) {
+  if (i > 5) {
+    u8g2.clearBuffer();
+    u8g2.sendBuffer();
+    if (digitalRead(2) == HIGH) {
+      powerScreen();
+    }
+    delay(50);
+  } else {
+    u8g2.clearBuffer();
+    u8g2.drawLine(74, 0, 74, 64);
+    printTemp();
+    printHumidity();
+    u8g2.sendBuffer();
+    delay(3000);
+    i++;
+  }
+}
+
+void printTemp() {
+  u8g2.setFont(u8g2_font_luRS08_tf);
+  u8g2.drawStr(5,10,"Temp");
+  u8g2.setFont(u8g2_font_luRS14_tf);
+  u8g2.setCursor(5, 60);
+  u8g2.print(dht.getTemperature(),1);
+  u8g2.print("°C");
+}
+
+void printHumidity() {
+  u8g2.setFont(u8g2_font_luRS08_tf);  // choose a suitable font
+  u8g2.drawStr(80,10,"Humidity");
+  u8g2.setFont(u8g2_font_logisoso22_tf);
+  u8g2.setCursor(80, 60);
+  u8g2.print(int(dht.getHumidity()));
+  u8g2.print("%");
+}
+
+void powerScreen() {
+  i = 0;
+}