dumped all my old arduino stuff in here.

Temp2/Temp2.pde

@@ -0,0 +1,48 @@
+#include <Wire.h>
+
+// ds1621 has 0x9(b1001) A0 A1 A2
+//#define DS1621_ADDR 72
+#define DS1621_ADDR ((0x9 << 3) | 0x00)
+
+void setup()
+{
+  // start serial
+  Serial.begin(9600);
+
+  // write 0x2 to config register 0xac
+  Wire.begin(DS1621_ADDR);
+  Wire.send(0xac);
+  Wire.send(0x02);
+  
+  delay(20);
+  
+  // tell the ds1621 to start measuring temperature
+  Wire.send(0xee);
+  
+  // tell ds1621 that we want to read register 
+  // 0xaa (the temperature is in there)
+  Wire.send(0xaa);
+}
+
+void loop()
+{
+  unsigned int data;
+  
+  // start reading the 2 bytes of temp data  
+  Wire.requestFrom(DS1621_ADDR, 2);
+  
+  if(Wire.available())
+    data  = Wire.receive() << 8;
+  if(Wire.available())
+    data |= Wire.receive();
+
+  Serial.print(data >> 8);
+  
+  if(data & 0xff)
+    Serial.print(",5");
+  else
+    Serial.print(",0");
+
+  Serial.println("");
+  delay(1000);
+}