USER MANUAL [1.4]
Page 44
For the 1-wire mode, no special settings are required as everything works in an automatic mode.
2.3 1-WIRE INTERFACE
Connection of digital sensors via 1-WIRE interface
To control the temperature of various devices or objects, temperature sensors are used. They
operate via the 1-wire interface (up to 8 sensors can be connected simultaneously on one data bus). Also,
in parallel with the temperature sensors it is possible to connect a connector for reading ibutton keys.
Figure 8 shows the connection of several temperature sensors of different
Types and i-button reader:
23
MP
24
SP
12
SN
11
MN
21
TX
22
H
10
L
9
RX
19
SPK
20
A
8
B
7
1W
17
U2
18
U0
6
U1
5
U3
15
A6
16
A4
4
A5
3
A7
13
VCC
14
D8
2
D9
1
GND
GND
i-button reader
i-button Indication
12-24V
VARIOUS TEMPERATURE SENSORS
EXTERNAL TEMPERATURE SENSOR INPUT
Figure 8 – Diagram of connecting temperature sensors of different type
