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3. Receiver Side Reference Circuit
SW1
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
SW DIP-8
4. Transmitter and Receiver Status table
Transmitter Side
"ON"
"OFF"
Button
Button
Pressed
released
x
pressed
released
released
Note:
Please refer to the datasheets of HT12E and HT12D for detailed information
about encoding and decoding circuit.
Laipac Technology, Inc.
+5V
U2
1
20
NC
NC
2
19
A0
VDD
3
18
ROSC 43K
A1
VT
4
17
A2
OSC1
5
16
A3
OSC2
6
15
A4
DIN
7
14
A5
A11
8
13
A6
A10
9
12
A7
A9
10
11
VSS
A8
HT12D
AD8
AD9
AD10
0
0
X
1
0
X
Power off
|
www.laipac.com
RLP434A
U1
1
Gnd
2
Digital Output
3
Linear Out
4
Vcc
Receiver Side
AD11
A8
X
0
X
1
Hold the status when button
pressed
|
Tel: 1-(905)762-1228
E1
ANTENNA
8
ANT
7
Gnd
6
Gnd
+5V
5
Vcc
C1
0.1u
A9
A10
A11
0
X
X
0
X
X
Fax: 1-(905)763-1737
3
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