User manual

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www.rovingnetworks.com Version 1.32r 10/9/2012 4
RN-WIFLY-EVAL-UM
Figure 2. RN-171-EK Evaluation Board
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Sensor Interface (J5)
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Pin
Description
1
Sensor Power
2
Sensor 4 (3.3-V tolerant)
3
Sensor 5 (3.3-V tolerant)
4
Sensor 7 (1.2 V only)
5
Sensor 5 (1.2 V only)
6
Sensor 4 (1.2 V only)
7
Sensor 6 (1.2 V only)
8
Sensor 3 (1.2 V only)
9
GND
WARNING: Voltage on pins marked 1.2 V
Only should not exceed 1.2 V or
permanent damage will occur.
UART Interface
(J4)
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RX - input to evaluation board
TX - output from evaluation board
Pin
Description
1
3.3-VDC Output
2
GND
3
UART RX
4
UART TX
5
UART RTS
6
UART CTS
7
GPIO4
8
GPIO5
9
GPIO6
10
GPIO7
11
GPIO8, (1)
12
GPIO9
13
RESET
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Note:
1. The RN-171 module drives GPIO8 HIGH on powerup, which overrides software configured powerup values, such as set sys value
0x0000 on GPIO8.
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LED Indicators
UART Interface
(J4)
Sensor
Interface (J5)
PCB Trace
Antenna
AP/WPS/Factory Reset
Pushbutton (GPIO9)
Reset
Pushbutton
95234678 1
1
2
3
4
5
6
7
8
9
10
11
12
13