Re: [beagleboard] Re: Issue getting DS18B20 temperature sensor working

2014-09-09 Thread Josenivaldo Benito Junior
On Sun, Sep 7, 2014 at 4:14 PM, Michaël Vaes vaesmich...@gmail.com wrote: Is there any way to see the RAW inputs/outputs on a pin? I would use a logic analyzer to see if the communication is going well. I have one of this: https://www.saleae.com/ but of an old model (maybe you still can get

Re: [beagleboard] Re: Issue getting DS18B20 temperature sensor working

2014-09-06 Thread Josenivaldo Benito Junior
Hi Michaël, Are you using 18ohm pull up resistor as your wiring diagram states? If so this resistor is too low for pull up; both bone and sensor will have to sink a lot of current to drive the line down. See this discussion here: https://groups.google.com/forum/#!topic/beaglebone/dosKmEE7xso