Hi all! I have successfully built an online thermometer using the instructions of the Arduino practical book and misc online resources (http://www.freetronics.com/pages/online-thermometer
), using a Dallas DS18B20 and a small 4K7 resistor, and its working fine!
Next I'd like to upgrade the setup with a humidity sensor of some sort. I dont have many requirements for this sensor and I am searching for a relatively low cost sensor as well as installation instructions along with all necessary items (shopping list if you will)..
Basically, I'd like the sensor to be:
able to read humidity levels between 0 & 100% (d'ah..
have a resolution (precision) of +/- 2 to 3% (Am I too demanding here?)
Costing less than $20 USD
Use as little setup as possible... Basically, a 3 pin connection is fine (like the Dallas thermal sensor).
It will be installed on a standard 3 wire cable like the Dallas sensor... It will be located remotely from the arduino board (approx. 20 to 50ft).
Can someone recommend a sensor?? There are tons of sensors onthe internet, I am confused which one should I go for to have the best compatibility and performance for my needs without going for a very expensive research-type sensor.... All I want to do is monitor the humidity level in my house...
Waiting for your replies!!!!