Key Features: General-purpose programmable module Featuring a 2.4 GHz radio and USB 29 KB of available flash and 4 KB of RAM Programmable through USB bootloader (no external programmer required) The Pololu Wixel is a general-purpose programmable module featuring a 2.4 GHz radio and USB. You can write your own software or load precompiled, open-source apps onto the TI CC2511F32 microcontroller at the heart of the Wixel, turning it into a wireless serial link, data logger, or whatever you need for your current project. With 29 KB of available flash and 4 KB of RAM, the Wixel is even suitable as the main controller for a robot or other system.The Wixel features a built-in USB bootloader that can be used in conjunction with our free Wixel Configuration Utility software to upload custom programs or precompiled, open-source apps to the Wixel (no external programmer is required).Item Specifics1 - Wixel Module1 - Male 0.1" Header3 indicator LEDs15 user I/O lines, featuring 6 analog inputs, 2 USARTs (for serial or SPI), and 7 timer channels (capable of PWM)4 KB of RAM and 29 KB of application program memory (flash)Operating voltage: 2.7 – 6.5 VOperating current: up to approximately 30 mA (can get down to ~100 μA when in sleep mode)Radio Frequency: 2400 – 2483.5 MHzRange: approximately 50 feet (under typical conditions indoors)Bit rate: programmable, up to 350 kbpsEffective data rate: up to 10 KB/sReverse voltage protection: YesSize: 0.7" × 1.5"Weight: 4.5 gSome soldering may be required