Problems with Infrared sensors

dattsengineering05

We are a high school class using the Boe-Bots in our project for the year. We are starting to use the infrared sensors to make it so the Boe-Bot will be able to manuever around objects etc.. The sensors were both working on two different Boe-Bots, but now the left ones on both Boe-Bots aren't working anymore. We have tried testing the breadboards with a multimeter and everything came up fine so we are perplexed. Any help is much appreciated. Thank You.

Russ Ferguson

Andy's Robotics book, Chapter 7, provides a simple program to test the IR sensors. I will attach it an maybe it will be some help to identify the problem. You will have to make the pin numbers match your pins of course.

The attached code is right out of the book. We used it this morning in our class.
TestIrPairsAndIndicators

The other program may also be helpful.
RoamAndSniffBoeBot

Hope you do not have to pull everything and re-wire it....

dandreae

One other note to add, is that you·want to make sure that you don't twist the leads together on the infrared LED.· You can use shielding from a jumper wire to help make sure that they don't touch one another.

Dave

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Dave Andreae

Tech Support
dandreae@parallax.com
www.parallax.com

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dattsengineering05

Thank you for all of your help. We determined that there was some sort of conflict with the sensors and the line follower module that we had recently installed, but not used. Now that we have determined that there was a conflict and temporarily rectified the situation, we aren't sure if our solution is permanent. We have the sensors in pins 0, 2, 8, and 10 which seems to resolve our problem. Does the line follower occupy all of the even pins? Thanks again!

dattsengineering05

Oops. I meant does the line follower occupy all of the odd pins? Thanks!