Arduino + CRIO - Chief Delphi

05-08-2014, 14:02

RyanShoff

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FRC #4143 (Mars Wars)

Team Role: Mentor

Join Date: Mar 2012

Rookie Year: 2012

Location: Metamora, IL

Posts: 147

Re: Arduino + CRIO

https://github.com/FRC-Team-4143/swerveneopixel

This sketch controls Adafruit neopixel leds over i2c. I2c is echoed over serial for debugging.

Crio code (in c++) is something like:

Code:

m_i2c = DigitalModule::GetInstance(1)->GetI2C(0x04 << 1);
RobotMap::m_i2c->Write(0x0, 50);

The first 0x0 is the command. The 50 is a parameter to the command in the sketch.

The i2c address is 0x4, but you have to shift it left on the Crio to write. That is the tricky part.

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Ryan Shoff
4143 Mars/Wars
CheapGears.com

Last edited by RyanShoff : 05-08-2014 at 14:11. Reason: changed parameter to not get confused with address

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