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--- workshop:i2c [2012/08/14 08:47] – donghee
+++ workshop:i2c [2018/07/18 14:10] (current) – external edit 127.0.0.1
@@ Line 18: / Line 18: @@
 ===== 실제 실험 해보기 =====
-LC256, EEPROM
 arduino i2c 관련 핀
@@ Line 27: / Line 26: @@
 {{http://i.imgur.com/VQtTJ.png?300}}
+==== 24LC256, EEPROM ====
 {{{
@@ Line 100: / Line 101: @@
 {{http://i.imgur.com/NE9xJ.png?300}}
+==== Tmp102 ====
+{{{
+#include <Wire.h>
+int tmp102Address = 0x48;
+void setup(){
+  Serial.begin(9600);
+  Wire.begin();
+}
+void loop(){
+  float celsius = getTemperature();
+  Serial.print("Celsius: ");
+  Serial.println(celsius);
+  float fahrenheit = (1.8 * celsius) + 32;
+  Serial.print("Fahrenheit: ");
+  Serial.println(fahrenheit);
+  delay(200); //just here to slow down the output. You can remove this
+}
+float getTemperature(){
+  Wire.requestFrom(tmp102Address,2);
+  byte MSB = Wire.read();
+  byte LSB = Wire.read();
+  //it's a 12bit int, using two's compliment for negative
+  int TemperatureSum = ((MSB << 8) | LSB) >> 4;
+  float celsius = TemperatureSum*0.0625;
+  return celsius;
+}
+}}}