Dust Networks D2120 Краткое руководство по эксплуатации - Страница 9
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Печатать страницуConnector P2
Connector P2
Connector P2 is an HD-15 female connector, as shown in Figure 1-2. It assumes
0 to 1.5 V analog inputs, and is unfiltered. All digital I/O are LVTTL (3 V) signaling.
Figure 1-2. HD-15 Female Connector
Table 1-2. P2 Connector Pinouts
Number
c
D2120 E
K
Q
VALUATION
IT
UICK
Pin
Pin Name
1
TX
2
D5
3
D2
4
A7
5
A4
6
RX
7
D6
8
D3
9
GND
10
A5
11
D7
12
D4
13
D1
14
A6
15
A3
Note: All I/O, including UART, are at LVTTL (3 V) signaling levels. An external
level converter is required for RS-232 communications.
Warning: Reverse biasing these inputs may result in damage to the device.
S
G
TART
UIDE
C
HAPTER
I/O
Description
O
UART Transmit
I/O
Digital I/O 5 or SOF
(see the Mote Integration Guide,
Appendix C)
I/O
Digital I/O 2
I
Analog input 7
I
Analog input 4
I
UART Receive
I/O
Digital I/O 6
I/O
Digital I/O 3
I
Ground
I
Analog input 5
I/O
Digital I/O 7
I/O
Digital I/O 4 or CTS
(see the Mote Integration Guide,
Appendix C)
I/O
Digital I/O 1
I
Analog input 6
I
Analog input 3
1 - M2020 E
M
VALUATION
ODULE
3