void loop(void) { byte i; byte present = 0; byte type_s; byte data[12]; byte addr[8]; float celsius, fahrenheit; if ( !ds.search(addr)) { ds.reset\_search(); delay(250); return; } if (OneWire::crc8(addr, 7) != addr[7]) { Serial.println("CRC is not valid!"); return; } // the first ROM byte indicates which chip switch (addr[0]) { case 0x10: type_s = 1; break; case 0x28: type_s = 0; break; case 0x22: type_s = 0; break; default: Serial.println("Device is not a DS18x20 family device."); return; } ds.reset(); ds.select(addr); ds.write(0x44, 1); // start conversion, with parasite power on at the end delay(1000); present = ds.reset(); ds.select(addr); ds.write(0xBE); // Read Scratchpad for ( i = 0; i < 9; i++) { data[i] = ds.read(); } // Convert the data to actual temperature int16\_t raw = (data[1] << 8) | data[0]; if (type_s) { raw = raw << 3; // 9 bit resolution default if (data[7] == 0x10) { raw = (raw & 0xFFF0) + 12 - data[6]; } } else { byte cfg = (data[4] & 0x60); if (cfg == 0x00) raw = raw & ~7; // 9 bit resolution, 93.75 ms else if (cfg == 0x20) raw = raw & ~3; // 10 bit res, 187.5 ms else if (cfg == 0x40) raw = raw & ~1; // 11 bit res, 375 ms } oled.clear(PAGE); oled.setFontType(0); // set font type 0, please see declaration in SFE\_MicroOLED.cpp oled.setCursor(1, 3); celsius = (float)raw / 16.0; fahrenheit = celsius \* 1.8 + 32.0; oled.print("Cels = "); oled.setCursor(1, 12); oled.print(celsius); oled.print(" \*C"); oled.setCursor(1, 21); oled.print("Fahr ="); oled.setCursor(1, 30); oled.print(fahrenheit); oled.print(" \*F"); oled.display(); }