wh_hsn

Did you include the proper DHT library? it should be "Adafruit DHT Unified"

Unfortunately I have no time :(

As per the documentations all standard libraries are supported & easily updated too to latest versions.Other libraries I am not sure - normally I am adding the libraries to my projects manually.

It is way better than the Arduino IDE.

YVW

I use 2 breadboards

There is no way to have this read analog signals, these are digital inputs.You need an ADC to read analog signals - a nice device will be this:http://www.aliexpress.com/item/Mini-DSO203-digital...or even this kit:http://www.aliexpress.com/item/Hot-DIY-Digital-Osc...

Thanks again Jason :)

I am planning to make a protection circuit using a series resistor (maybe adding a diode) & a parallel 3.3 ziner to ground. It won't be a problem for low freq signals like RS232 but may have an effect on high freq signals.

Thanks, glad you liked it.