I2C communication between Arduino and DLP4710EVM-G2

Yu-Chuan Su

There is a 4-pin connector J11 for I2C communication in DLP4710EVM-G2.

How to use this connector? What's the function of each of the 4 pins?

I read in a solved thread that there shouldn't be any hardware modifications needed to the board to get communication working with Arduino.

I tried to use the following Arduino code (learned from another solved thread) to turn the LED on but didn't succeed.

#include <Wire.h>

void setup()
{
Wire.begin();
Wire.beginTransmission(0x1B);
Wire.write(0x52);
Wire.write(0x02);
Wire.endTransmission();
}

void loop()
{
}

Is there anything else I need to do?

Many thanks in advance!

Eric

over 8 years ago

0 Philippe Dollo over 8 years ago

TI__Mastermind 28005 points

Hello User,

Thanks for your interest in our DLP Products.

The four pins for I2C communication are VCC, GND, Clock, and Data. In terms of their connections, I recommend you look at the EVM schematic, which can be found in the design guide at www.ti.com/.../tida-01226 (more specifically, you can access the EVM schematic at www.ti.com/.../tidrnb9)

I recommend you first check whether your I2C connections match those described in the schematics above. Let me know if you need any assistance with this.

Best Regards,

Philippe Dollo

DLP®︎ products

DLP products forum

I2C communication between Arduino and DLP4710EVM-G2