Orangutan SVP LEDs.
The Orangutan SVP comes with 9 LEDs:
• A
blue
power LED is located next to the power button.
• There are
four
motor indicator LEDs located near the motor outputs. A
green
LED lit
indicates that the corresponding motor is being driven “forward” (the voltage on output B is
higher than the voltage on A). A
red
LED indicates that the corresponding motor is being
driven in “reverse” (the voltage on output B is lower than the voltage on output A).
• A
red
user LED is located near the AVR I/O banks. The LED is connected to the user I/O
line PD1. It will light if you set PD1 as a low output. Since PD1 is the serial transmit line for
UART0 (TXD0), the LED will flicker whenever serial data is being transmitted from the AVR.
The LED can be disconnected from PD1 by cutting a labeled trace (
PD1-LED
) on the bottom
of the board.
• A
green
user LED is located between the trimpot and the buzzer. It will light if you set PC4
as a high output. Note that PC4 is also used as an LCD data line, so you will see the green
LED flicker when you update the LCD.
• Another
green
LED is located near the USB connector. This LED is controlled by the auxiliary
processor and indicates the status of the USB connection. When the USB is disconnected,
or the device is in the USB Suspend state (because the computer went to sleep), the
Pololu Orangutan SVP User’s Guide
© 2001–2019 Pololu Corporation
4. Module Pinout and Components
Page 14 of 43
