FinePrint Software, LLC
16 Napier Lane
San Francisco, CA 94133
Tel: 415-989-2722
Fax: 209-821-7869
www.fineprint.com
1 2 3 4 5 6 7 8
A
B
C
D
87654321
D
C
B
A
Title
Number RevisionSize
A2
Date: 1-Mar-2011 Sheet of
File: E:\Project\温度远程\原理图 emperature.ddb Drawn By:
+5
GND
1
VCC
2
VO
3
RS
4
WR
5
E
6
DB0
7
DB1
8
DB2
9
DB3
10
DB4
11
DB5
12
DB6
13
DB7
14
BG VCC
15
BG GND
16
LCD1
LCD1602
+5
_DB0
_DB1
_DB2
_DB3
_DB5
1
2
BZ1
Buzzer
_DB6
Q22
9012
_DB7
_DB4
+5
BUZZ
R52
1K
RS
液晶接口
R67
1K
E
WR
P1.0/T2
1
P1.1/T2EX
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
RST
9
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.5/T1
15
P3.6/WR
16
P3.7/RD
17
XTAL2
18
XTAL1
19
GND
20
P2.0/A8
21
P2.1/A9
22
P2.2/A10
23
P2.3/A11
24
P2.4/A12
25
P2.5/A13
26
P2.6/A14
27
P2.7/A15
28
PSEN
29
ALE
30
EA
31
P0.7/AD7
32
P0.6/AD6
33
P0.5/AD5
34
P0.4/AD4
35
P0.3/AD3
36
P0.2/AD2
37
P0.1/AD1
38
P0.0/AD0
39
VCC
40
U5
STC89C52
Y2
11.0592MHz
C1420p
C1520p
+5
RST
_DB0
_DB1
_DB2
_DB3
_DB5
_DB6
_DB7
_DB4
蜂鸣器
单片机电路
K1
KEY
K2
KEY
K3
KEY
K4
KEY
Key1
Key2
Key3
Key4
+5
R1 10K
R2 10K
R3 10K
R4 10K
按键电路
VCC
1
D-
2
S
5
D+
3
S
6
GND
4
J3
USB-B
+5IN
LED3
LED
R34
1K
+
C16
100u
USB接口电路
R31
4.7K
C11
0.1uF
+5
RST
单片机复位
1
2
3
J1
AMS1117-3.3
1
2
3
4
5
6
7
8
J?
CON8
+3.3V
+
C?
10uF
vout
VSS
vin
+5V
+
C?
10uF
电源转换电路 无线模块
VSS
IRQ
+3.3V
CE
CSN
SCK
MOSI
MISO
C?
0.1uF
C?
0.1uF
LED电路
R?
1K
R?
1K
D?
LED1
D?
LED2
VCC VCC
LED1 LED2
WR
E
RS
CE
CSN
SCK
MISO
MOSI
IRQ
BUZZ
LED1
LED2
Key1
Key2
Key3
Key4
2011-3-1 19:53
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