@teastain2 Thank you. That was the conclusion I was coming to. Realistically, I can only use i2c, rather than some resistive sensors and use some A2D pins.

I am looking to use the T-RGB display on a project to display the water level of 4 tanks. I haven't chosen the senders yet, but are likely to be simple resistive type senders. Are there any available GPIO ports or are they all taken up with the display?