Schematic

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
A
Date: 9/18/2012 Sheet of
File: D:\CytronRD\..\ARDUINO-G15.SchDoc Drawn By:
1112
13
U1D
4
5 6
U1B
1
2 3
14
7
VCC
GND
U1A
89
10
U1C
Vin 5V
16V 47uF
C1
25V 100uF
C3
GND GND
5V
GND
0.1uF
C6
Q1
MMBT3904
Q3
MMBT3904
5V
10K
R1
10K
R5
5V
GND
GND
4.7K
R3
4.7K
R8
TX_EN1
TX_EN2
RX_EN1
RX_EN2
0.1uF
C4
GND
0.1uF
C5
GND
1
2
3
4
5
6
JP6
1
2
3
4
5
6
JP8
1
2
3
4
5
6
7
8
JP2
1
2
3
4
5
6
7
8
JP9
TX_EN1 RX_EN1
TX_EN2 RX_EN2
TX RX
47
R4
47
R7
DAT1
DAT2
100K
R2
5V
TX
RX
RESET
5V
GND
Vin
1
2
JP1
GND
Ext_Pwr
1
2
3
JP3
Servo Power
1
2
3
JP11
1
2
3
JP13
DAT1
DAT2
Servo Power
Servo Power
GND
GND
Ext_Pwr
Vin
1
2
3
JP10
5264-03H Connector
1
2
3
JP12
5264-03H Connector
DAT1
DAT2
Servo Power
Servo Power
GND
GND
Power Source
Input Output Connectors
Tristate Buffer Circuitry
Selection Jumpers & Indicators
1
2
3
JP4
RX_EN1
1
2
3
JP5
RX_EN2
12V
D1
10K
R6
Q2
D2 D3
D8 D9
D2
D3
D8
D9
1
2
3
4
5
6
JP7
RX
TX
GND
RX_EN1
RX_EN2
5V
D2
DS1
Servo Power
47K
R9
GND GND
5V
4.7K
R10
DS2
S1
GND
RESET
Servo Power
25V 100uF
C2
GND
0.1uF
C7
GND
Servo Power
0.1uF
C8
GND
Servo Power
0.1uF
C9
GND
Servo Power
0.1uF
C10
GND
Servo Power
10K
R11
10K
R12
5V
5V
G15 PORTAX12 PORT