--- /dev/null
+#include <OneWire.h>
+
+/* DS18S20 Temperature chip i/o */
+
+OneWire ds(8); // on pin 10
+
+void setup(void) {
+ Serial.begin(9600);
+}
+
+void loop(void) {
+ byte i;
+ byte present = 0;
+ byte data[12];
+ byte addr[8];
+
+ if ( !ds.search(addr)) {
+ Serial.print("No more addresses.\n");
+ ds.reset_search();
+ delay(250);
+ return;
+ }
+
+ Serial.print("R=");
+ for( i = 0; i < 8; i++) {
+ Serial.print(addr[i], HEX);
+ Serial.print(" ");
+ }
+
+ if ( OneWire::crc8( addr, 7) != addr[7]) {
+ Serial.print("CRC is not valid!\n");
+ return;
+ }
+
+ if ( addr[0] != 0x10) {
+ Serial.print("Device is not a DS18S20 family device.\n");
+ return;
+ }
+
+ // The DallasTemperature library can do all this work for you!
+
+ ds.reset();
+ ds.select(addr);
+ ds.write(0x44,1); // start conversion, with parasite power on at the end
+
+ delay(1000); // maybe 750ms is enough, maybe not
+ // we might do a ds.depower() here, but the reset will take care of it.
+
+ present = ds.reset();
+ ds.select(addr);
+ ds.write(0xBE); // Read Scratchpad
+
+ Serial.print("P=");
+ Serial.print(present,HEX);
+ Serial.print(" ");
+ for ( i = 0; i < 9; i++) { // we need 9 bytes
+ data[i] = ds.read();
+ Serial.print(data[i], HEX);
+ Serial.print(" ");
+ }
+ Serial.print(" CRC=");
+ Serial.print( OneWire::crc8( data, 8), HEX);
+ Serial.println();
+}