DS18S20

There are 3 digital temperature sensors, so be sure to get the correct one. There is the 1820, 18S20 and 18B20. The 18S20 is the successor to the 1820, and does not drift over time. The 18B20 does offer faster conversions, but for me, the 18S20 more more readily available, and suits my applications fine. Be aware that the 18B20 does require different methods of temperature conversion then that described in this manual for the 18S20.

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[DigitalDIY]

Hello,

Download the DS18B20 datasheet and have a look at the 1-Wire section, all will be reviled.

[nougatmorten]

Hi, i need some help with a simular project. I have the same source code as you but in my simulation program it shows 0,5 degree C constantly. And what does $55 refer to in the command: "OWrite DQ,1,[$55,$10,$30,$C5,$C8,$00,­$00,$00,$3C,$BE]"