Patryk <p4trykx <at> gmail.com> writes: > > W dniu 31.03.2013 o 22:41 Jim Burkhard <jhburkhard <at> gmail.com> pisze: > > > The 1wire pull up is 3K but the same behavior occured at 4.7K. > > You mean an external pull up resistor? I think it's not required. > Looking at the 2483 "Typical App Circuit" that seems true. I put the pullup on the 1wire bus line due to the 18b20 diagram "Powering the 18B20 with an External Supply". The circuit wiring 2483 (SOT 23 chip) to 18B20 (TO-92) is then: Pin 1 SLPZ -> RPi 3.3V 2 SDA -> RPi SDA 3 SCL -> RPi SCL 4 GND -> RPi GND -> DS18B20 Pin 1 GND 5 IO -> DS18B20 Pin 2 DQ 6 Vcc -> RPi 5V -> DS18B20 Pin 3 Vdd
Thanks for the help... I'll check it out ------------------------------------------------------------------------------ Own the Future-Intel(R) Level Up Game Demo Contest 2013 Rise to greatness in Intel's independent game demo contest. Compete for recognition, cash, and the chance to get your game on Steam. $5K grand prize plus 10 genre and skill prizes. Submit your demo by 6/6/13. http://altfarm.mediaplex.com/ad/ck/12124-176961-30367-2 _______________________________________________ Owfs-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/owfs-developers
