I had an temperature and humidity sensor that uses one wire to read and write data from and to it. It has libraries in both Arduino and raspberry pi. The raspbe

I had an temperature and humidity sensor that uses one wire to read and write data from and to it. It has libraries in both Arduino and raspberry pi. The raspberry pi one does much worse and reads data wrong all the times - and given the library was written by ladyada, which is generally high quality code. It is none to her fault - Linux doesn't guarantee the timings - the best that someone could do is to crank the priority to max to get the timings right but even then it is still iffy. Interesting to see, given the raspberry pi has a way higher clock compared to the Arduino. Note the comment: https://github.com/adafruit/Adafruit_Python_DHT/blob/master/examples/AdafruitDHT.py https://github.com/adafruit/Adafruit_Python_DHT/blob/master/... # Note that sometimes you won't get a reading and # the results will be null (because Linux can't # guarantee the timing of calls to read the sensor). # If this happens try again!