XTAL2
18
XTAL1
19
ALE
30
EA
31
PSEN
29
RST
9
P0.0/AD0
39
P0.1/AD1
38
P0.2/AD2
37
P0.3/AD3
36
P0.4/AD4
35
P0.5/AD5
34
P0.6/AD6
33
P0.7/AD7
32
P1.0
1
P1.1
2
P1.2
3
P1.3
4
P1.4
5
P1.5
6
P1.6
7
P1.7
8
P3.0/RXD
10
P3.1/TXD
11
P3.2/INT0
12
P3.3/INT1
13
P3.4/T0
14
P3.7/RD
17
P3.6/WR
16
P3.5/T1
15
P2.7/A15
28
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
U1
AT89C51
X1
CRYSTAL
C1
10uF
R1
10k
C2
30pF
C3
30pF
Q1
PNP
R2
1k
2
3
4
5
6
7
8
9
1
RP1
RESPACK-8
ÉèÖÃ
D7
14
D6
13
D5
12
D4
11
D3
10
D2
9
D1
8
D0
7
E
6
RW
5
RS
4
VSS
1
VDD
2
VEE
3
LCD1
LM016L
BUZ1
BUZZER
·äÃùÆ÷
¹ø¸Ç
Q2
PNP
R3
1k
ÅÅÆø·§
RL1
5V
R4
100
D1
LED-YELLOW
ÉÏÏÞ¼Ó
ÉÏÏÞ¼õ
ÏÂÏÞ¼Ó
ÏÂÏÞ¼õOK
ˮλ¼Ó
ˮλ¼õ
CS
1
CH0
2
CH1
3
GND
4
VCC
8
CLK
7
DI
5
DO
6
U2
ADC0832
52%
RV1
1k
ˮλ¼ì²â
27.0
DQ
2
VCC
3
GND
1
U3
DS18B20
ζȼì²â
CS
1
CH0
2
CH1
3
GND
4
VCC
8
CLK
7
DI
5
DO
6
U4
ADC0832
51.0
3 4 5 621
M1
MPX4115
ѹÁ¦¼ì²â
Q3
PNP
R5
1k
¼ÓÈÈÆ÷
L1
5V
Æô¶¯
D2
LED-RED
D3
LED-GREEN
R6
100
R7
100
ָʾµÆ
½ûÖ¹ÊÖ¶¯´ò¿ª
ÔÊÐí´ò¿ª
U5
OR
R8
1k
Ëø¿Û¿ØÖÆÂß¼-
RL2
5V
Í£Ö¹
D4
LED-GREEN
R9
100
¹¤×÷ָʾµÆ