OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › There is option to connect rain sensor ? › Re: Re: There is option to connect rain sensor ? August 6, 2014 at 5:14 am #27237 RayKeymaster Rain sensor port has been added since OSPi 1.2. I don’t recall where I said this. Rain sensor is only added since OSPi 1.3. If you saw where I mentioned it in 1.2, let me know and I will correct it.