RN-171-DS
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RN-171 802.11 b/g Wireless LAN Module
Features
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FCC/CE/IC certified 2.4-GHz IEEE 802.11b/g
transceiver
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Small form factor: 1050 x 700 x 130 mil
Configurable transmit power: 0 to 10 dBm
RF pad connector for antennas
Certified antennas: chip antenna, 4” dipole, PCB
trace, and wire antenna
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Ultra-low power: 4-uA sleep, 38-mA Rx, 120-mA Tx
at 0 dBm
Description
High throughput: 921 Kbps TX, 500 Kbps RX data
rate with TCP/IP and WPA2 over UART, up to
2 Mbps over SPI slave
The RN-171 module is a complete, standalone TCP/IP
wireless networking module. With its small form factor
and extremely low power consumption, the RN-171 is
perfect for mobile wireless applications such as asset
monitoring, sensors, and portable battery operated
devices. It incorporates a 2.4-GHz radio, 32-bit SPARC
processor, TCP/IP stack, real-time clock, crypto
accelerator, power management, and analog sensor
interfaces.
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8-Mbit flash memory and 128-KB RAM
10 general-purpose digital I/O pins
8 analog sensor interfaces
Real-time clock for wakeup and time stamping
Accepts 3.3-V regulated power supply or 3-V
battery
The module is preloaded with firmware to simplify
integration and minimize application development. In
the simplest configuration, the hardware only requires
four connections (PWR, TX, RX, and GND) to create a
wireless data connection. Additionally, the analog sensor
inputs can connect to a variety of sensors such as
temperature, audio, motion, and acceleration. The ability
to go into deep sleep mode and automatically scan and
associate to an access point when awake makes the
RN-171 suitable for roaming applications. The RN-171
also includes a built-in HTML client to post serial UART
data or sensor data to a web server automatically.
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Supports ad hoc and infrastructure networks
Complete on-board TCP/IP networking stack
Environmentally friendly: RoHS compliant
Applications
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Remote equipment monitoring
Telemetry
Industrial sensors and home automation controls
Home automation
Figure 1. RN-171 Block Diagram
RN-171
Trace for
PCB Antenna
128-KB
RAM
32-Bit
CPU
2-MB ROM
Flash
Memory
2.4 GHz
TX/RX
2.4-GHz
Radio
Timers
802.11 b/g
MAC/PHY
SPI
GPIO
UART
SPI
2.4-GHz
PA
VDD IN
VDD BATT
GPIO
SDIO
Crypto
accelerator
Pwr
Mgmt
ADC
Sensor Interface
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www.rovingnetworks.com
Version 3.21 10/2/2012
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