BeagleBoard.org® BeagleBone® Blue
BeagleBone® Blue is an all-in-one Linux-based computer for mobile robotics. Fully open source and actively supported by a strong community, the real-time performance, flexible networking, and rich set of robotics-oriented capabilities make building mobile robots with BeagleBone® Blue fast, streamlined, affordable, and fun. Integrating onto a single, small (3.5" x 2.15") board, the Octavo OSD3358 microprocessor together is supported with WiFi/Bluetooth, IMU/barometer, charging/power management and state-of-charge LEDs for a 2-cell LiPo battery, H-Bridges and discrete connectors for 4 DC motors+encoders, 8 servos, and all of the commonly-needed buses for additional peripherals in embedded applications.
£79.62 including VAT
Arduino Mega
If you are looking for a development board for a more complex project, the Arduino Mega 2560 is for you. Ideal for use in 3D printing and robotics, this handy bit of kit is based on the ATmega2560 Microcontroller, and can be used both standalone or connected to a PC. Amongst other fantastic features, with 54 x digital I/O pins, 16 Analogue inputs and 4 UART, it will certainly keep you busy.
£35.23 including VAT