Schematics
1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
Title
Number RevisionSize
A3
Date:1-JULY-2015
Drawn By:liaochunlong
R
1
RE
2
DE
3
D
4
GND
5
A
6
B
7
VCC
8
U1
SP485CN
GND
+5
+5
GND
C1
100nFGND
R2
4.7K
+5
R8
1K
R5
10R
R6
10R
R3
R4
2.2K
R7
120R
R1
4.7K
+5
1
2
3
4
J16
GND
RXD-D0
TXD-D1
1
2
3
4
5
6
7
8
9
10
11
12
J5
1
2
3
4
5
6
7
8
9
10
11
12
J6
GND
GND
1
2
J17VCC
GND
GND
VIN
L
GND
CE
+5
VCC
+5
GND
+5
APC-TXD
APC-RXD
GND
C2
100nF
C3
100nF
C4
100nF
C5
100nF
C6
100nF
C7
100nF
C8
100nF
C9
100nF
VCC
GND
+5
GND
+5
GND
1
2
3
4
5
6
7
8
9
J13
APC-TXD
APC-RXD
GND
1
VCC
2
EN
3
RXD
4
TXD
5
AUX
6
SET
7
NC
8
NC
9
J15
APC&BT
4
12
3
RST
1
2
3
4
5
6
7
8
J1
1
2
3
4
5
6
7
8
J2
1
2
3
4
5
6
J3
1
2
3
4
5
6
J4
RXD
TXD
CE
PWM1
PWM2
PWM3
PWM4
AD0
AD1
AD2
AD3
AD4
AD5
+5
RESET
VIN
PWM5/SS
PWM6/MOSI
D4
D7
D8
D12/MISO
D13/SCK
RXD
TXD
CE
PWM1
VCC
PWM2
PWM3
D4
D7
VCC
1
2
3
4
5
6
7
8
9
J8
1
2
3
4
5
6
7
8
9
J9
VCC VCC
PWM4
PWM5/SS
D8 PWM6/MOSI
D12/MISO
D13/SCK
1
2
3
4
5
6
7
8
9
J10
1
2
3
4
5
6
7
8
9
J11
GND GND
+5 +5
AD0
AD1
AD2
AD3
AD4
AD5
1
2
J19
1
2
3
4
IIC
AD5
AD4
+5
VCC
1
DOUT
2
DIN/CONFIG
3
CD/DOUT_EN/DO8
4
RESET
5
PWM0/RSSI
6
ON/SLEEP
13
DTR/SLEEP_RQ/DI8
9
CTS/DIO7
12
RTS/AD6/DIO6
16
ASSOC/AD5/DIO5
15
RF_TX/AD4/DIO4
11
COORD_SEL/AD3/DIO3
17
AD2/DIO2
18
AD1/DIO1
19
AD0/DIO0
20
VREF
14
GND
10
PWM1
7
NC
8
XBee
XBEE-PRO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
R12
1K
R9
10K
R10
15K
R11
1K
ASSOC
T1
8050
RESET
3.3V
Vin
3
ADJ
1
+Vout
2
U2
ams1117-3.3
GND
+5
C10
4.7uF
3.3V
C11
100nF
APC-RXD
APC-TXD
1
2
3
4
5
6
SD
+5
D12/MISO
D13/SCK
PWM5/SS
PWM6/MOSI
D13/SCK
1
2
J14
1
2
J7
C12
100nF
RESET
D1
SS14
1
A
1
B
duino Expansion
V1.2
-D13
2.2K
D2
D13
CE