From 51dfeff10dbf3be808a58e4fb2d9687b080f8f5f Mon Sep 17 00:00:00 2001
From: EmbeddedMan SR
command.
Pins B1, B0, B2 and B3 are not 5-volt tolerant and any voltage above about 3.6V will damage them. + Pins B4, B5, B6 and B7 are 5-volt tolerant and will not be damaged by voltages up to 6.0V. +
+ +Because all Port B pins (B0 through B7) have weak pull up resistors, any of these pins can easily be
+ used to read a switch by simply connecting a switch between the Port B pin and GND. Use the
+ PI
command to read the state of the switch. If that pin is not already
+ an input at boot (see table below) you can make it an input using the PD
+ command.
+
In addition to the pins of PortB, additional broken-out I/O pins accessible on the EBB include: PortA: RA0,1,2,3,5, PortC: RC0,1,2,6,7, PortD: RD: 0,1,4,5,6,7, and PortE: RE0. Every pin on PortB, PortC and RA6 can source or sink up to 25mA each. All other pins can source or sink up to 4mA each. @@ -2707,54 +2718,63 @@ ul.no_bullets {
QB
SC
, SP