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SKU 807121

RN131C - 802.11 b/g Ultra-low power, surface mount module

Prezzo originale €31,72 - Prezzo originale €31,72
Prezzo originale
€31,72 - €31,72
Prezzo attuale €31,72

Tutti i prezzi sono IVA inclusa

Richiesta Sconto per Quantita' e Informazioni

Roving's most popular Wi-Fi module, the RN131C, is a complete, ultra-low power embedded TCP/IP solution. 

The combination of ultra-low power and the ability to wake up, connect to a wireless network, send data, and return to sleep mode in less than 100 milliseconds, allows the RN131C to run for years on two standard AAA batteries.  Using only 35mA when awake and 4µA when asleep, this remarkable power efficiency makes possible a new class of internet-enabled products.

The RN131C incorporates a 2.4 GHz radio, processor, TCP/IP stack, real-time clock, crypto accelerator, power management, and analog sensor interfaces.  This complete solution is pre-loaded with software to simplify integration and minimize development time for applications.  In the simplest configuration, the hardware only requires four connections (PWR, TX, RX, GND) to create a wireless data connection.

The RN131C has all the features and capabilities of the RN131G, but is rated for commercial temperature (0C to +70C).  The RN131C is the perfect choice for those looking for a complete, low power, lower cost Wi-Fi module.

For the developer, Roving offers an evaluation board based on the RN131, the RN-131-EK.  This easy-to-use kit quickly adds Wi-Fi connectivity to embedded applications, significantly reducing development time.

Click here for the latest firmware


  • Full onboard TCP/IP stack (no external drivers required)
  • Ultra-low power design for battery powered applications
  • Fixed transmit power: +18dBm
  • Hardware interface: UART and SPI slave
  • Supports Ad hoc and infrastructure networking modes
  • User programmable GPIO & ADCs
  • Real-time clock for time-stamping, auto-sleep, and auto-wakeup modes
  • Runs directly from batteries (onboard battery boost circuit) or regulated power supply
  • Configuration over serial or wireless interface using simple ASCII commands
  • Over the air firmware upgrade
  • Secure Wi-Fi authentication schemes (WEP / WPA / WPA2)



  • Remote equipment monitoring
  • Asset tracking and telemetry
  • Security
  • Wireless audio
  • Industrial sensors and controls
  • Home automation
  • Medical devices


Networking Standards

IEEE 802.11 b/g

Over-the-Air 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


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)


DHCP, DNS, ARP, ICMP, FTP client, HTTP client, TCP, UDP

Supply voltage

3.3V ±10%

Output power


Power consumption

4µA sleep, 35mA active RX, 210mA TX

Serial Interface Data rate

464Kbps over UART, up to 1Mbps over SPI slave


Up to 300 meters in open air

Antenna options

Onboard Chip and U.FL


1.49" x 0.78" x 0.15" (38 x 20 x 4 mm)


0.140 oz


FCC, IC, CE, Wi-Fi Alliance