Data Sheet

ManualsBrandsTinysine Electronics ManualsEthernet / WiFi DC ControllersMotorAir - WiFi Dual Motor Driver Smartphone Remote Control Kit

www.rovingnetworks.com Version 1.04 10/29/2012 1

RN- 171-XV-DS

RN-171-XV 802.11 b/g Wireless LAN Module

Features

• Drop-in Wi-Fi solution for existing systems that

currently use 802.15.4 modules

• Based on Roving Networks’ robust RN-171 Wi-Fi

module

• Based on a pseudo-standard footprint

• On-board TCP/IP stack provides Internet access to

every node

• No custom profiles needed

• Ultra-low power: 4-uA sleep, 40-mA Rx, 180-mA Tx

at 10 dBm

• Configurable transmit power: 0 to +12 dBm

• Hardware interface: TTL UART

• Data rate: 464 Kbps using hardware flow control

• Through-hole board simplifies system integration

• 8 general purpose digital I/O pins

• 3 analog sensor interfaces

• Real-time clock for wakeup and time stamping

• Complete TCP/IP networking stack

• Wi-Fi Alliance certified for WEP, WPA, and

WPA2-PSK

• WPS mode for easy configuration

• FCC/CE/ICS certified and RoHS compliant

Applications

• Industrial metering

• HVAC control

• Room temperature sensors

• Pump configuration and control

• Telemetry

• PV/solar controllers

• Robotics

Description

The RN-171-XV is a 802.11 b/g solution especially

designed for designers who want to migrate their existing

802.15.4 architecture to a more standard TCP/IP-based

platform without redesigning their existing hardware.

Based on a pseudo standard footprint often found in

embedded applications, the Roving Networks’

RN-171-XV module provides Wi-Fi connectivity using

802.11 b/g standards in legacy and existing designs that

may have been based upon the 802.15.4 standard.

The RN-171-XV module is based on Roving Networks'

robust RN-171 Wi-Fi module and incorporates an

802.11 b/g radio, a 32-bit SPARC processor, a TCP/IP

stack, a real-time clock, a crypto accelerator, power

management unit, and an analog sensor interface.

The module offers additional functionality through its on-

board programmable GPIO pins (10) and ADCs (8). The

ADCs provide 14-bit resolution while the GPIOs can be

configured to provide standard functionality or status

signaling to a host microcontroller, reducing the need for

serial polling between the Wi-Fi module and host

microcontroller.

The module is pre-loaded with firmware to simplify

integration and minimize applications development time.

In the simplest configuration, the hardware only requires

four connections (PWR, TX, RX, and GND) to create a

wireless data connection.

Summary of content (8 pages)

PAGE 1
RN - 17 1-XV -DS RN-171-XV 802.11 b/g Wireless LAN Module Features • Drop-in Wi-Fi solution for existing systems that currently use 802.15.
PAGE 2
RN - 17 1-XV -DS OVERVIEW • Host data rates up to 460 Kbps over the UART • Intelligent built-in power management with programmable wakeup events (timers and I/O) • Real-time clock for time stamping, auto-sleep, and auto-wakeup modes • Configuration over Wi-Fi or UART using simple ASCII commands • Supports over the air firmware upgrade via FTP • Secure Wi-Fi authentication via WEP, WPA-PSK (TKIP), and WPA2-PSK • Built-in networking applications: DHCP, DNS, ARP, ICMP UDP, Telnet, FTP client
PAGE 3
RN - 17 1-XV -DS Table 3. Analog Sensor Inputs Parameter Value Sensor 0, 1, 2, 3 wakeup detect threshold 500 mV A/D sensor 0 - 4 measurement range 0 - 400 mV Precision 14 bits = 12 uV Accuracy 5% un-calibrated, .01% calibrated Minimum conversion time 35 uS (5 kHz over Wi-Fi) Sensor power (pin 33) output resistance 3.3 V 10 ohms, maximum current = 50 mA Table 4. Radio Characteristics Parameter Specifications Frequency 2,402 ~ 2,480 MHz Modulation 802.
PAGE 4
RN - 17 1-XV -DS Table 6 describes the LED indicators. Table 6. RN-171-XV Evaluation Board LED Indicators Condition Red LED Yellow LED Green LED On solid -‐ -‐ Connected over TCP Fast blink Not associated Rx/Tx data transfer No IP address Slow blink Associated, no Internet -‐ IP address OK Off Associated, Internet OK -‐ - TYPICAL APPLICATION SCHEMATIC Figure 1 shows a typical application schematic.
PAGE 5
RN - 17 1-XV -DS Figure 1. Application Schematic Figure 2 shows the pin pads and dimensions. Table 7 describes the pins. www.rovingnetworks.com Version 1.
PAGE 6
RN - 17 1-XV -DS Figure 2. Pin Pads & Dimensions 10 9 8 960 mil 7 6 5 4 3 2 1 RN-171-XV 305 mil 11 12 13 14 15 16 17 18 19 20 47 mil 200 mil 2 mm 286 mil 1,150 mil 1 mil = 0.0254 mm Table 7. Pin Description Pad Number Signal Name Description Optional Function Direction 1 VDD_3V3 3.3-V regulated power input to the module. Power 2 UART_TX UART TX, 8-mA drive, 3.3-V tolerant. OUT à 3 UART_RX UART RX, 3.3-V tolerant. IN ß 4 GPIO8 GPIO, 24-mA drive, 3.
PAGE 7
RN - 17 1-XV -DS DESIGN CONCERNS The following sections provide information on designing with the RN-171-XV module. Powering the Module Apply ONLY 3.3 V ±10% regulated power to pin 1 (VDD) and pin 10 (ground). The module does not have an on-board voltage regulator and MUST be powered from a regulated 3.3-V power supply. Antenna The RN-171-XV ships with a wire antenna. Custom antenna configurations such as chip, U.FL., and reverse polarity SMA connectors are available with extended lead times.
PAGE 8
RN - 17 1-XV -DS Copyright © 2012 Roving Networks. All rights reserved. Roving Networks is a registered trademark of Roving Networks. Apple Inc., iPhone, iPad, iTunes, Made for iPhone are registered trademarks of Apple Computer. Roving Networks reserves the right to make corrections, modifications, and other changes to its products, documentation and services at any time.