Schematic

1
1
2
2
3
3
4
4
D D
C C
B B
A A
Title
Number RevisionSize
B
Date: 2013/3/7 Sheet of
File: D:\PCB \..\Digital servo driver shield.SchDocDrawn By:
Digital servo driver shield
V0.2
Phoebe
1
2
3
4
5
6
7
8
J1
1
2
3
4
5
6
7
8
J4
1
2
3
4
5
6
J3
A0
A1
A2
A3
RXD
TXD
CE
PWM1
D4
PWM2
PWM3
D7
D8
PWM4
D10
1
2
3
4
5
6
7
8
9
10
J2
GND
SDA
SCL
5V
GND
GND
3V3
RESET
IOREF
AREF
PD3/INT1
1
PD4/XCK/T0
2
GND
3
VCC
4
GND
5
VCC
6
PB6/XTAL1/TOSC1
7
PB7/XTAL2/TOSC2
8
PD5/T1
9
PD6/AIN0
10
PD7/AIN1
11
PB0/ICP
12
PB1/OC1A
13
PB2/SS/OC1B
14
PB3/MOSI/OC2
15
PB4/MISO
16
PB5/SCK
17
AVCC
18
ADC6
19
AREF
20
GND
21
ADC7
22
PC0/ADC0
23
PC1/ADC1
24
PC2/ADC2
25
PC3/ADC3
26
PC4/ADC4/SDA
27
PC5/ADC5/SCL
28
PC6/RESET
29
PD0/RXD
30
PD1/TXD
31
PD2/INT0
32
U5
ATMEGA8
1 2
3 4
5 6
ICSP
5V
C1
0.1uF
SCK
MISO
RESET
5V
MOSI
DGND
Power
MCU
Servo Interface
DGND
SCK
C3
0.1uF
RESET PD1_TXD PD0_RXD
IO Expansion
C7
104P
S_VIN
GND
GND
GND
GND
GND
GND
S_VIN
S_VIN
S_VIN
S_VIN
S_VIN
S_VIN
1
23
U2A
SN74HC126
4
5 6
U2B
SN74HC126
VCC 5V
Rob_UART
Rob_UART
Rob_UART
Rob_UART
Rob_UART
Rob_UART
R2
10k
5V
Rob_UART
PD_TXD
PD_RXD
MOSI MISO
DGND
5V
GND
1
2
J8
Power
1
2
3
servo1
1
2
3
servo2
1
2
3
servo3
1
2
3
servo5
1
2
3
servo6
1
2
3
servo7
1
2
3
4
5
6
FTDI
VCC
GND
PD1_TXD
PD0_RXD
C2
0.1uF
RESET DTR
1 2
U1A
74LS04
3V3
3 4
U1B
74LS04
5 6
U1C
74LS04
89
U1D
74LS04
1011
U1E
74LS04
1213
U1F
74LS04
GND
GND
GND
GND
DGND
RESET
D1
1N4148
R1
4.7K
UART
10
9 8
U2C
SN74HC126
13
12 11
U2D
SN74HC126
5V
5V
S_VIN
BlueD7
R3
2k
GND
ss:10
mosi:11
miso:12
sck:13
SS
NC
PD_TXD
PD_RXD
PD1_TXD
PD0_RXD
D3
1N4148
D2
1N4148
5V
(6.5~13V)
1
2
J5
1
2
J6
1 3
2
Y1
R4
1M
GND
1
2
J7
D10
SS
GND
S_VIN
Rob_UART1
2
3
servo4
D11
D12
D13
A4
A5
C6
47uF/25V