FTM Board Club
Microchip
RN-171-EK
RN171 Evaluation Kit

The RN-171-EK is an 802.11 b/g Wi-Fi evaluation kit for the RN171 module that can be used to quickly add Wi-Fi connectivity to embedded applications.

It has the flexibility to connect directly to a PC via a standard USB interface or to embedded processors through the TTL/UART interface. The board includes 2 convenient pushbuttons for controlling both SoftAP and WPS (Wi-Fi Protected Setup) mode without software configuration. The status LEDs and jumpers enable rapid prototyping and integration into existing systems. The RN-171-EK can be powered by both a USB cable (included in the kit) or batteries. The board contains a battery boost circuit which makes it possible to power the board using two AAA batteries (the input voltage can go down to 2.0 V DC when using the battery boost circuit). The battery boost circuit makes the RN-171-EK perfect for battery powered applications such as sensors, data acquisition systems, controllers, etc. The RN-171-EK is based on the Roving Networks RN171 module. The RN171 module incorporates a 2.4 GHz radio, processor, full TCP/IP stack, real-time clock, and supports the FTP client, DHCP, DNS, and HTML client protocols. The module supports ad hoc and infrastructure networking modes along with SoftAP mode. The RN171 module is programmed and controlled from a console with a simple ASCII command language. Once the configuration is set up, the module can automatically scan to find an access point, associate, authenticate, and connect over any Wi-Fi network. Additionally, the module can automatically wake up, send data to a remote host, and go back to a low-power sleep state.

Features
§ Ultra-low power: 4 ľA sleep, 40 mA Rx, 180 mA Tx at +10 dBm § Complete on-board TCP/IP networking stack § Configurable transmit power: 0 to +12 dBm § UART hardware interface § Up to 1 Mbps data rate over UART § Powered by battery pack (2 AAA batteries) or via USB cable § Pushbuttons for AP/WPS mode and reset signals § Supports both Adhoc and SoftAP mode (including SoftAP for Android) § 10 general-purpose digital I/O pins § 8 analog sensor interfaces; configurable sensor power outputs 0 to 3.3V DC § Real-time clock for wakeup and time stamping § Wi-Fi Alliance certified for WPA2-PSK § FCC/CE/IC certified and RoHS compliant