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RoboPi v1.00
RoboPi I/O Pin Definitions
Before you can write programs for your RoboPi based robot, you have to learn what resources are
available for you to connect to sensors, motors and other devices or boards.
P0-P7: SERVO 1 – SERVO 8
10 pin EXP1 connector connected directly to processor pins, 3v3 I/O only
•
connects to signal pin on SERVO1-8 through a 2k4 current limiting resistor, 5V I/O safe
•
For the servo header, SV2 selects between the Pi's 5V and VBat from the screw terminal
•
P8-P15: SERVO 9 – SERVO 16
10 pin EXP2 connector connected directly to processor pins, 3v3 I/O only
•
connects to signal pin on SERVO9-16 through a 2k4 current limiting resistor, 5V I/O safe
•
For the servo header, SV3 selects between the Pi's 5V and VBat from the screw terminal
•
P16-P23: SENSOR 1 – SENSOR 8
10 pin EXP3 connector connected directly to processor pins, 3v3 I/O only
•
connects to signal pin on SENSOR1-8 through a 2k4 current limiting resistor, 5V I/O safe
•
the Pi's 5V is used for SENSOR1-8 to provide cleaner power to Ping's etc
•
P24-P27: SPI port for MCP3008/MCP3208
P24 is MISO, connected to DO on ADC through a 2k4 current limiting resistor
•
P25 is MOSI
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P26 is CLK
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P27 is /CS
•
ADC1-ADC8: 0-5V Analog inputs
connects to the signal pin on ADC1-8 servo style header
•
the Pi's 5V is used for ADC1-8 to provide cleaner power to Ping's etc
•
http://Mikronauts.com
User Manual v0.60
5
Copyright 2014 William Henning
2014-01-27
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