i2ctemp schematic
Vcc
Power: AC 8-12V or DC 7.5-16V
U1
|
1 2 |
N |
100uF 1 |
IN |
OUT | |
|
W |
U |
GND | |||
|
l |
78L05 2 |
7805 | |||
-1- NI -1-
T
10uF
Vcc
5
10K
*
5V 2
1uF
R3
CONN4
SCL
RTS=7
4k7
Vcc
5VtL
CD=1
SDA
Vcc
DTR=4
GND=5
4k7
R1
DB9 female
u
5v1
5v1
1K
D1
11
12
13
AA
|
ATMEGA8 |
U2 |
|
Rst(PC6) |
(SCL) PC 5 |
|
PDO(RXD) |
(SDA)PC4 |
|
PD1 (TXD) |
(ADC3) PC3 |
|
PD2 (INTO) |
(ADC2) PC2 |
|
PD3 (INT1) |
(ADC1)PC1 |
|
PD4 (TO) |
(ADCO) PCO |
|
Vcc |
AGND |
|
GND |
AREF |
|
_i | CD 0. |
AVcc |
|
PB7(XTAL2) |
(SCK) PB5 |
|
PD5 (T1) |
(MISO) PB4 |
|
PD6 (AlNO) |
(MOSI) PB3 |
|
PD7 (AlN1 |
(OC1B) PB2 |
|
PB0(ICP1) |
(OC1A) PB1 |
28
27
26
25
24
23
_22_
19
16
15
2L
CONN3
vcc 10K
'k
_BZ
Vcc 10K
'k
R8
NTC ou
R5 NTC in dc or
4K7 at 25
47nF or 0.1 uF
Vcc
C4
CD
O
CL
CL
CONN1
—cuntrast—uv 470 R9
Vcc 5V
/T\
R10
il
:I6
:I5
:I4
v'CC
:or
LCD
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