How to hook up Spectral Triad (AS7265x) with Arduino Uno?

[jille]

Hi all,

Could someone please advise how to connect the Triad spectroscopy sensor to the Arduino Uno?

I got these items:

SparkFun Triad Spectroscopy Sensor - AS7265x (Qwiic)

https://www.sparkfun.com/products/15050

SparkFun FTDI Basic Breakout - 3.3V

https://www.sparkfun.com/products/9873

Arduino Uno - R3

https://www.sparkfun.com/products/11021

I checked the hookup guide here, but don’t see a clear schematic or photo where all of the devices are linked together

https://learn.sparkfun.com/tutorials/sp … okup-guide

Thank you

[jille]

Hi all,

Any advise on Arduino IDE settings?

I connected:

GND to GND

3V3 to 3.3V

SDA to SDA

SLC to SLC

And didn’t connect the INT and RST pins.

Does anybody know what settings in Arduino IDE are needed?

I installed this library:

https://github.com/sparkfun/SparkFun_AS … no_Library

It is able to upload to the arduino, but I dont see anything from the serial monitor on the port.

any advice? thank you

[jille]

update, thanks to help of some other people I was able to connect it.

added two 330ohm inbetween on a breadboard and all is working now.

[MountainMan]

What were the connections used to connect the resistors? I couldn’t really tell from the picture.

[jremington]

As mentioned in the “getting started guide”, DO NOT connect a 5V Arduino, such as the Uno R3, to the Spectral Triad (a 3.3V device) without using 5V to 3.3V level shifters.

Unless you are prepared to buy another sensor, stop what you are doing now and order this level shifter for the SDA and SCL connections: https://www.sparkfun.com/products/12009

HOWEVER, you don’t even need an Arduino, if you follow the instructions in the guide.