This isnt quite a spark specific question (so i also asked at arduino.cc)
But since my plan was to use a spark, im thinking, why not ask here too!
So I know that onewire devices use a bus to allow for multiple sensors on a single pin… But I’m trying to do the reverse. I have a single Onewire sensor (ds18b20) and I want two controllers to have access to read the temp.
I am trying to hack a polyscience sous vide. It already has the sensor inside, and their own proprietary microcontroller listening to the sensor. I was hoping to split the vcc, gnd and signal wires and have one set go to the existing mcu and the second going to my SPARK where I could simply listen to the temp…and post it to the net. Tweet it. upload it to xively. Create an IFTTT recipe. Make it send a fax. Damn i love connected devices…