RoboPi v1.00
User Manual v0.85
Copyright 2014 William Henning
Introduction
RoboPi is the most advanced robot controller add-on board for the Raspberry Pi available at this time.
RoboPi adds an eight-core 32-bit microcontroller running at 100Mhz to the Raspberry Pi in order to
off-load hard real time I/O and allow more precise timing than Linux running on the Pi allows.
RoboPi stacked on top of a Model A
Raspberry Pi
RoboPi can also be stacked on top of
Model B Raspberry Pi's
RoboPi Features
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Parallax Propeller P8X32 eight core 32 bit Risc microcontroller running at 100Mhz
•
Each of the eight cores provides up to 25MIPS as most instructions take only 4 clock cycles
•
three ten-pin Mikronauts I/O module expansion connectors (P0-P7, P8-P15, P16-P23)
•
24 servo compatible headers on P0..P23
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P0-P7 jumper selectable power from Pi's 5VDC supply or external servo power supply
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P8-P15 jumper selectable power from Pi's 5VDC supply or external servo power supply
◦
P16-P23 is powered by 5V from the Pi expansion header for sensors
•
Screw terminal for providing external power for Servo connectors P0-P15
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8 servo compatible headers for an eight channel 0-5V analog to digital converter with choice of
◦
MCP3008 for 10 bit A/D conversion
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MCP3208 for 12 bit A/D conversion
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Choice of 256Kbit or 512Kbit boot EEPROM for the Propeller
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On-board voltage regulation providing 3.3V with power on LED from the 5V on the Pi header
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4 pin I2C expansion header for the Raspberry Pi
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4 pin I2C expansion header for the Propeller
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5 pin HCOM connector for use with PropPlug in stand alone operation (optional)
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Mikronauts EZasPi prototyping board can stack below RoboPi
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Mikronauts Pi Jumper can stack on top of RoboPi
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Mikronauts SchoolBoard ][ and other Propeller products are compatible with RoboPi
http://Mikronauts.com
4
2014-01-27
