Pololu Baby Orangutan B - Manual (Page 6)

drive the PD1 hard enough, the voltage will be pulled below the AVR’s high threshold by the LED-resistor
circuit ).
Warning: Pins PB4 and PB5 are used as ISP programming pins in addition to digital user I/O
lines. Be careful not to connect anything to these pins that might interfere with programming (e.g.
large capacitance or an external device that could drive those lines during programming). Similarly,
don’t connect anything to those lines that might behave unexpectedly when they are driven during
programming (e.g. if you use these lines as inputs to a motor driver IC, it could drive your motors in
strange and potentially dangerous ways during programming) .
You can tap into the Baby Orangutan’s regulated 5V Vcc line using the pin labeled “Vcc” or either of the two pads
on the bottom of the board directly to the left of this pin. You can tap into the Baby Orangutan’s ground using the
two pads on the bottom of the board directly to the right of the “GND” pin.
Pololu Baby Orangutan B User's Guide © 2001–2012 Pololu Corporation
4. Module Pinout and Component Identification Page 6 of 12