Hello, I would like to use a 1 wire sensor a DS18B20. what would be the pin to connect the sensor. regards, Cosmin
You need to plug the sensor power pin into the 3.3v pin of UDOO, the ground into the ground pin and the sensor signal pin in one of the digital pin of UDOO (from 2 to 53).
Hello, thank you for the reply. so far I recompiled the kernel with support for i2c and 1wire I understand that I can use any pin from 2 to 53 the question would be where do I define the pin in the linux and where will the sensors apear. the raspberry pi had a fix pin I could use the 1 wire. regards, Cosmin
I am attempting to do the exact same thing. When I plug the DS18B20 and attempt modprobe w1-gpio I receive an error message that states "No such device". What I am able to discern from reading rPi discussions is that there is a conflict between I2C and w1 drivers of some sort. I am considering using an rPi fix to solve the problem. kernel patch for Dallas 1-wire interface http://www.raspberrypi.org/forums/viewtopic.php?f=44&t=6649 Essentially I will drop the w1 source files (discussed in the above forum) into the UDOO kernel and recompile, see what happens.... Very frustrating indeed Larry
