Question about input pins.

[Tom Bottiglieri]

What is the natural state of digital input pins on the RC. My mind tells me low, some documentation says high, and some other CD users say low.

[Kevin Watson]

What is the natural state of digital input pins on the RC. My mind tells me low, some documentation says high, and some other CD users say low.Each digital I/O has a light pull-up to Vcc. So without anything driving the pin, you'll read a logic 1. It's documented here (http://www.innovationfirst.com/FIRSTRobotics/pdfs/Analog_Digital_IO_FRC_2004.pdf).

-Kevin

[steven114]

If you don't trust their answers, just take a multimeter to it... is it 5v or 0?

[Tom Bottiglieri]

i would have done that, but im at home right now, writing the program.