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Microcontroller

Raspberry Pi 2 Model B:

• - a lot of existing projects and help
• - only 40 GPIO Pins
• - extension-board available (http://www.gertbot.com/) for real-time tasks and controlling of actors and sensors (easy to use with existing libraries)
  • - Price: Farnell £40.00
• • - size: width:130mm, height:15mm, depth:80mm
  • weight: 0.25 kg

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In contrast to Raspberry Pi :-

• better I/O capabilities with 7 channel 200kHz 12-bit ADC, 8 PWMs, 4 UARTs, quadrature encoder hardware

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• don't have to buy additional components to connect up many more sensors and actuators

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• large number of PWM channels on the Bones make them better for motors

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• better real-time control with two 200MHz, 32-bit RISC programmable real-time units (PRUs)

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• approximately 20 books available for texts, reference and projects

Hardware:

• Processor: AM335x 1GHz ARM® Cortex-A8

• 512MB DDR3 RAM

• 4GB 8-bit eMMC on-board flash storage

• 3D graphics accelerator

• NEON floating-point accelerator

• 2x PRU 32-bit microcontrollers

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