danrogers
Member
Hi all, I am putting a few temperature sensors around my house (for a thermostat project). The sensors will be up to 20-30 meters from the micro controller so I would like the smallest noise possible. I have two questions
1) I'm using 10k thermistors set up in a voltage divider circuit. The vcc is 5v. Am I better off having the voltage divider at the uC and just two wires running to the thermistor, or setting up the voltage divider at the thermistor and running 3 cables?
2) is there any advantage (noise) in using twisted pair cable? I have got plenty of cat5e that I could run to the sensors?
Many thanks!
1) I'm using 10k thermistors set up in a voltage divider circuit. The vcc is 5v. Am I better off having the voltage divider at the uC and just two wires running to the thermistor, or setting up the voltage divider at the thermistor and running 3 cables?
2) is there any advantage (noise) in using twisted pair cable? I have got plenty of cat5e that I could run to the sensors?
Many thanks!