I am looking at using a DHT11 for logging my temp and humidity in a few boxes i have.
I need to be able to run these sensors several feet away (50ft ish) I would like to use Ethernet cable to do this. I know there is power loss when you start talking feet so im planing on using a 12v to 5v 5A Buck Converter to power them rather then powering them off the arduino.
Before i start down this road i have 3 questions that i can not find the answers on.
- Can i get data off these sensors at 50 feet away?
- I would like to run 10 per arduino and save to the sd card every 3 hours is there a way to do this all at one time or is it best to do one at a time?
- Is there a better sensor to use other then the DHT11 that is still around the same price range