2-KB NVM RN-131-DS RN-131G & RN-131C 802.11 b/g Wireless LAN Module Features Qualified 2.4-GHz IEEE 802.11b/g transceiver Ultra-low power: 4 uA sleep, 40 mA Rx, 210 mA Tx High throughput, 1 Mbps sustained data rate with TCP/IP and WPA2 Small, compact surface-mount module On-board ceramic chip antenna and U.FL connector for external antenna 8-Mbit flash memory and 128-KB RAM Description UART hardware interface 10 general-purpose digital I/O pins The RN-131 module is a standalone, embedded wireless 802.11 b/g networking module. With its small 8 analog sensor interfaces form factor and extremely low power consumption, the Real-time clock for wakeup and time stamping RN-131 is perfect for mobile wireless applications such Accepts 3.3-V regulated or 2 to 3 V battery as asset monitoring, GPS tracking, and battery sensors. Supports ad hoc and infrastructure networking The WiFly module incorporates a 2.4-GHz radio, modes processor, TCP/IP stack, real-time clock, crypto On board ECOS -OS, TCP/IP stacks accelerator, power management, and analog sensor Wi-Fi Alliance certified for WPA2-PSK interfaces as shown in Figure 1. The module is preloaded with software to simplify integration and FCC/CE/ICS certified and RoHS compliant. minimize application development. In the simplest Industrial (RN-131G) and commercial (RN-131C) configuration, the hardware requires only four grade temperature options connections (PWR, TX, RX, and GND) to create a wireless data connection. Additionally, the sensor interface provides temperature, audio, motion, Applications acceleration, and other analog data without requiring Remote equipment monitoring additional hardware. The module is programmed and Telemetry controlled with a simple ASCII command language. Once the module is set up, it can scan to find an access Industrial sensors and home automation controls point, associate, authenticate, and connect over any Medical device monitoring Wi-Fi network. Figure 1. RN-131 Block Diagram RN-131 On-Board Chip Antenna 128-KB 32-Bit 2-MB ROM Flash RAM CPU 2.4 GHz Memory TX/RX 2.4-GHz Timers Radio 802.11 b/g U.FL Connector MAC/PHY SPI for Optional External SPI 2.4-GHz GPIO Antenna PA UART VDD IN VDD BATT GPIO Crypto Pwr ADC accelerator Mgmt 3.3-V Boost SDIO Boost Sensor Interface EPC/RFID Regulator Enable www.rovingnetworks.com Version 3.2r 4/9/2012 1 RN-131-DS OVERVIEW Host data rate up to 1 Mbps for the UART Intelligent, built-in power management with programmable wakeup Real-time clock for time stamping, auto-sleep, and auto-wakeup Configuration over UART using simple ASCII commands Remote configuration over WiFi using Telnet Supports over the air firmware upgrade (FTP) Supports WPS pushbutton mode for easy association with access points Secure WiFi authentication using WEP-128, WPA-PSK (TKIP), or WPA2-PSK (AES) Built-in networking applicationsDHCP, UDP, DNS, ARP, ICMP, TCP, HTTP client, and FTP client 802.11 power saving and roaming functions The modules size and weight are: Size1.49 x 0.78 x 0.15 (37mm x 20 mm x 3.5 mm) Weight0.140 oz Tables 1 through 4 provide detailed specifications for the module. Table 1. Environmental Conditions Parameter RN-131G RN-131C o o o o Temperature Range (Operating) -30 C to +85 C 0 C to +70 C o o o o Temperature Range (Storage) -40 C to +85 C -40 C o +85 C Relative Humidity (Operating) 90% 90% Relative Humidity (Storage) 90% 90% Table 2. Electrical Characteristics Supply Voltage Min Typ. Max. Unit Supply voltage VDD 3.0 3.3 3.7 VDC Supply voltage (VBATT option) 2.0 3.0 3.3 VDC Pin 21 switched 3.3 V output 150 mA Digital input Input logic high VIH 2.3 V VDC Input logic low VIL 1.0 V VDC Digital output drive GPIO 4, 5, 6, 7, 8 24 mA GPIO 9, 10, 11, 12, 13 8 mA Power consumption Sleep 4 uA Standby (doze) - 15 - mA Connected (idle, RX) 40 mA Connected (TX) 140 212 mA www.rovingnetworks.com Version 3.2r 4/9/2012 2