+5V
+5V
Vdd
RTCC
BlueSMiRF
Modem
10 KΩ
ACK
+5V
+9V
CTS-I
PWR
GND
TX-0
RX-I
RTS-0
+5V
RC. 7
RC. 6
RC. 5
RC. 4
MCLR
RC. 3
RC. 2
OSC2 RC.1
OSC1 RC.0
4 MHz
SX28AC/DP
Vdd
GND
RB. 7
RB. 6
RB. 5
RB. 4
RA. 3 RB. 3
RA. 2 RB. 2
RA.1 RB.1
RA.0 Vss RB.0
4. 7 KΩ 4. 7 KΩ
CLOCK
ATTN
CMD
DATA
VIOLET
N/C
BLACK
BLUE
YELLOW
RED/SHIELD
GREEN
ORANGE
BROWN
ACKNOWLEDGE
NO T CONNEC TED
CLOCK
ATTENTION
Vdd (+3V to +5V)
GROUND
+9V FOR VIBRA TION MO TOR PO WER
COMMAND
DATA
L YNXMO TION PS2 CON TROLLER ADAP TER
CABLE. AS VIE WED FROM THE FEMALE END
Figure 2. BlueSMiRF Bluetooth wireless Playstation 2 controller interface.
BlueSMiRF
Modem
CTS-I
PWR
GND
TX-0
RX-I
RTS-0
The MR-C3024 controller
on the RoboNova has two
+5V
GND dedicated serial data ports that
TX make life really easy for wiring
the BlueSMiRF to the MR-
C3024. One port is for
N/C transmitting serial data, and
N/C the other is for receiving serial RX TO ETX ON
THE MR-C3024 data. Each port has three
wires: a signal wire, +5V, and
GND. The +5V wire (center
pin) is used to power the
BlueSMiRF serial modem. Figure 4 shows a photo of these
ports. Notice the three port labels (ETX, ERX, and LCD)
immediately to the left of the programming port at the
center of the MR-C3024. WARNING: The ETX and ERX
ports are mislabeled on the circuit board. The ERX (serial
receive) port is actually immediately adjacent to the serial
programming port, and the ETX (serial transmit) port is
actually between the ERX and the LCD ports. This is
+5V
GND
TO ERX ON
THE MR-C3024
Figure 3. Cable drawing for connecting a BlueSMiRF to the RoboNova.
You may want to purchase a special adapter cable from
Lynxmotion ( www.lynxmotion.com) called the Sony
Playstation Controller Cable. For $4.95, it is well worth the
money for obtaining the special cable that connects to
the Playstation 2 controller and has convenient connectors
for connecting to your projects. I do not know of any other
place that sells the special connector that the Playstation 2
controller uses.
Figure 4. Serial communication ports on the MR-C3024. Note the
ETX and ERX labels are labeled incorrectly. They should be reversed!
Figure 5. The BlueSMiRF serial modem cable
connected to the ERX and ETX ports.
16 SERVO 02.2008
