Product overview » OEM/ODM » WiFi Dongles » RN-374M 802.11 b/g AAA Battery powered Wi-Fi serial Adapter (RN-374M)

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RN-374M 802.11 b/g AAA Battery powered Wi-Fi serial Adapter

Product description:
RN-374M 802.11 b/g AAA Battery powered Wi-Fi serial Adapter

The battery powered Wi-Fi serial adapter, RN-374, supports RS422 interface and when connected to a remote host it transfers data, read or written, to the serial interface of a remote application such as an iPhone app, data logger or PC control console.

Data is transferred over a reliable TCP/IP socket or by using other protocols such as UDP and HTTP. 802.11 b/g infrastructure or ad hoc networking has the advantage of using existing low cost wireless connectivity and being able to remotely connect to any Wi-Fi serial adapter in the world.

Please ask for availability, this item has a longer lead-time.

Model: RN-374M

Art nr: 100.138

Manufacturer: Roving Networks

Last update: 21st of May 2012

  • General
  • Features
  • Specifications
  • Downloads (13)
  • Inquiry now


HTTP Client
A built in HTTP client can be used to post data to a remote server without the need for any host controller. By simply enabling the HTTP protocol, the RN-374 can wake up and send data to a remote server as an HTML post. This feature allows the RN-374 to be an off the shelf, standalone networking client that does not require any software programming.

Mobile Applications
The RN-374 can easily connect to an iPhone/iTouch. It is a simple unrestricted solution to connect your external device with an iPhone app. Simply setting the device in ad hoc mode allows any Wi-Fi enabled computer or smartphone to control and monitor serial devices. In this mode, the Wi-Fi serial adapter broadcasts an open network that the iPhone/iTouch can connect to. Once the connection is established, data can be transferred between the RN-374 and the iPhone/iTouch app. Applications with multiple TCP/IP sockets can control and monitor hundreds of Wi-Fi serial adapters remotely distributed across your LAN, campus WAN, or any other network.



  • Battery powered RS422 serial adapter eliminates messy cable clutter with Wi-Fi link
  • Compatible with all Roving Networks W-Fi modules and all TCP/IP based devices
  • Designed using Roving Networks' 802.11 b/g compliant RN-131 module
  • Supports Adhoc and infrastructure networking modes
  • Real-time clock for time-stamping, auto-sleep, and auto-wakeup modes
  • Runs on AAA batteries (Alkaline or rechargeable)
  • Onboard battery charging circuit
  • Configuration over serial or wireless interface using simple ASCII commands
  • Over the air firmware upgrade
  • Secure Wi-Fi authentication schemes (WEP / WPA / WPA2)
  • Full onboard TCP/IP stack (no external drivers required)
  • Works with iOS devices. Check out our App in the App store: WiFlyClient


  • Remote equipment monitoring
  • Industrial Automation
  • Global Positioning Systems
  • Data Loggers


Networking Standards IEEE 802.11 b/g
Data rates 802.11 b: 1,2, 5.5,11 Mbps : 802.11 g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
Frequency Band 2.412 - 2.484 GHz
Modulation 802.11 b: DSSS(CCK-11, CCK-5.5, DQPSK-2, DBPSK-1): 802.11g : OFDM
Wi-Fi security Secure Wi-Fi authentication schemes (WEP / WPA / WPA2)
Protocols DHCP, DNS, ARP, ICMP, FTP client, HTTP client, TCP, UDP
Supply voltage 3.3V from two AAA batteries
Output power +18dBm
Power consumption 4uA sleep, 35mA active RX, 210mA TX
Data rate 464Kbps over UART
Range Up to 200 meters
Antenna options Onboard Chip
Size 3" x 1" x 0.75" (76.2 x 25.4 x 19.05 mm)
Certifications FCC, ICS, CE, Wi-Fi Alliance

Downloads (13)

  Data sheets

# Description: Revision: Size: Download:
1 Wifly serial datasheet v1.0 174.3 KB Download link
2 RN Wi-Fi module Antanova chip antenna (RN-131) 2011-10-10 540.82 KB Download link

  Warranty and Return Policies

# Description: Revision: Size: Download:
1 RN Roving Networks Return Policy 2011-10-10 36.94 KB Download link
2 RN Roving Networks Warranty Policy 2011-10-10 37.7 KB Download link

  Manuals and Guides

# Description: Revision: Size: Download:
1 Wifly serial user manual v1.0 318.97 KB Download link
2 RN WiFly User Manual 2.32 1.57 MB Download link
3 RN Wi-Fi Serial Adapter User guide 1.0 949.73 KB Download link

  Application Notes

# Description: Revision: Size: Download:
1 RN Application Note FTP Client mode 1.0 187.94 KB Download link
2 RN Application Note HTTP Client mode 1.0.9 159.57 KB Download link
3 RN Application Note Wi-Fi Protected Setup (WPS) 2011-10-10 334.51 KB Download link
4 RN Case Study Wi-Fi data logger 2009-10-01 214.1 KB Download link

  Presentation and Training

# Description: Revision: Size: Download:
1 RN WiFi Product Training - WiFLY Training Presentation 2011-03-25 3.22 MB Download link


# Description: Revision: Size: Download:
1 RN-131 series Certifications Package 2011-10-10 10.3 MB Download link

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