Now place these Library files in the Library folder of your Proteus software.You will get a zip file so extract it and you will find these three Library Files in it.First of all, download this Rain Sensor Library for Proteus, by clicking the below button.So, now let's have a look at How to download and use this Rain Sensor Library for Proteus: If you apply HIGH to this TestPin then that's means there's rain and if TestPin is LOW then it will give LOW output and will show there's no rain.
Now restart your Proteus software if its already open.If you are using Proteus 8 software, then you should have a look at How to add new Library in Proteus 8 Professional.