Answered: Using Light Sensors to detect colored materials

[Vex_Vortex]

Not sure if this has already been asked but I couldn’t find anything from a search.

Are we allowed to put a colored material (such as a black and white piece of paper) on a legal vex piece to detect the position of that piece with a light sensor?

I do remember something about using color filters for light sensors being legal a while ago, but this is a little different, and i don’t remember the specifics of that ruling.

Not sure what rule this would fall under either, so I don’t know what to quote form the manual.

Thanks in advance.

[Karthik]

Not sure if this has already been asked but I couldn’t find anything from a search.

We ask you to please thoroughly read the VEX Robotics Comeptition Nothing But Net Game Manual and to please review the Q&A Usage Guidelines before posting in this forum. Specifically, please quote the rule or definition that your question is referring to.

Are we allowed to put a colored material (such as a black and white piece of paper) on a legal vex piece to detect the position of that piece with a light sensor?

Not sure what rule this would fall under either, so I don’t know what to quote form the manual.

You should quote the exact rule that talks about color filters for light sensors. There’s a specific rule that answers your question directly.

<R7> Robots are allowed the following additional “non-VEX” components:
a. Any material strictly used as a color filter or a color marker for a VEX Light Sensor.