I want to connect a 0-10V transmitter to my arduino Due. I guess I have to create a voltage divider? In order to bring voltage to 0-3,3V?
Then, I would like to transmit data through an Ethernet connexion (not to internet, I want to transmit it to a server). However, the Ethernet shield operates with 5V, and the Due with 3.3V. Are they compatible or did a make a huge mistake?
FYI for other readers, a 0-10V transmitter is simply a sensor of some kind that scales its output from 0 to 10V analog.
Yes, absolutely you can just wire up a voltage divider. 3.3V is just about exactly 1/3 of 10V, so something like a 10k and a 4.7k will divide 10V down to 10*4.7k/(4.7k+10k) = 3.20V. Then just call the digital number you get from that full scale.