rangkaian ph
DESCRIPTION
Gambar rangkaian pengukur keasaman tanahTRANSCRIPT
XTAL218
XTAL119
ALE30EA31PSEN29
RST9
P0.0/AD0 39P0.1/AD1 38P0.2/AD2 37P0.3/AD3 36P0.4/AD4 35P0.5/AD5 34P0.6/AD6 33P0.7/AD7 32
P1.0/T21P1.1/T2EX2P1.23P1.34P1.45P1.56P1.67P1.78
P3.0/RXD 10P3.1/TXD 11P3.2/INT0 12P3.3/INT1 13
P3.4/T0 14
P3.7/RD 17P3.6/WR 16P3.5/T1 15
P2.7/A15 28
P2.0/A8 21P2.1/A9 22
P2.2/A10 23P2.3/A11 24P2.4/A12 25P2.5/A13 26P2.6/A14 27
U1
AT89C52VIN+6VIN-7
VREF/29
CLK IN4
A GND8
RD2WR3
INTR5
CS1
D GND10
DB7(MSB) 11DB6 12DB5 13DB4 14DB3 15DB2 16DB1 17DB0(LSB) 18
CLK R19
VCC 20U2
ADC0804
+5V
+5V
X1CRYSTAL
C1
30pFC230pF
R1100
C310uF
+5V
D714
D613
D512
D411
D310
D29
D18
D07
E6
RW5
RS4
VSS
1VD
D2
VEE
3
LCD1LM032L
54%
RV15k
+5V
23456789
1RP1
RESPACK-8
+5V
R210k
C4150pF
R38.2k
BAT15V
BAT25V
R410k
R550k
+0.5v
Volts-2.49
3
21
84
U1:A
LM358N
R610k
R710K
5
67
84
U1:B
LM358N
INPUT SENSOR