OpenSprinkler › Forums › Hardware Questions › OpenSprinkler Pi (OSPi) › Adding a sensor? › Re: Re: Adding a sensor?
January 26, 2014 at 9:19 pm #25919
OSPi takes four GPIOs (these cannot be shared with other devices), and the I2C pins (these can be shared with other I2C devices). This diagram shows which pins are taken by OSPi:
The other pins are free and you can use any of them.