I have installed the pressure transducer we talked about in this thread (Measurement Specialties LM) and have the three wires hooked up to one of the SBC analog inputs. In this quote you mention the outlet tube and the ground. The outlet tube from the sensor is just exposed to the surrounding air, right? About the ground I don't know. Do I have to provide a physical ground to the SBC to provide the ground? I haven't done anything like that, should I?
theTroll527 wrote:The first one should work just fine. The distances shouldn't be a problem. Just need to make sure you supple the correct current (amps).
I would run three wires, do you have a good ground. You also need to run an outlet tube to the sensor.
More generally I am wondering if I have interfaced the Measurement Specialties LM sensor correctly. I have just connected the black, red and yellow wires of the device to the black, red and white wires of the analog input. Is this all there is to it? The SBC manual says non phidget sensors are not plug-and-play and I am not sure what that means! If I just connect the LM sensor to the analog input and have it hanging in mid air the SBC reads 90.
Thanks again for your help...