Hi guys,

Just received my HiTechnic sensors this morning and have been testing them out.

However I seem to have encountered a problem with the Color Sensor. When I plug it in, there is no "light" source coming out from the LED at the bottom. Tested the Color sensor on all 4 ports with NXT-G and RobotC (I've used Xander's drivers and test files and also the sample 3rd party test files from HiTechnic included with RobotC) and I kept getting an error. Just want to check, am I right to assume that if it is working, it should have a light coming out from one of the LEDs?

Test cases:

Using the Ultrasonic (cm) test method as instructed by the manual, the sensor registered no change in readings. Not even a tiny fluctuation.

Functions provided by Xander are returning "FALSE" boolan values that indicate sensors failed to read.

Heh, was hoping to get a faster reply here but seems like HiTechnic was pretty fast to reply my email. Anyway they told me to ship it back to them for an exchange so everything's good. I hope.

Steve,

Yeah, HT are very good about their return policy. Perhaps you should also post something on the NXTasy forum so people won't post there as well.

Regards,
Xander

Xander,

Done. Thanks for the reminder, I forgot about the other post on NXTasy forum.

Regards,
Steve

I would not say it is faulty. However, I did have 3 defective ones already. They were good returning the first one. I'll have to send back another two. I had other good ones so that I could confirm they just did not work as my other ones work fine with the same NXT hardware, software... even the same cord.

Otherwise, the red/green/blue gave pretty precious values.

Just make sure you test the sensor in NXT-G as well.

Elizabeth, did you try recalibrating the sensors?

Regards,
Xander