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| Fred, It seems to me that the first thing most people want to add to their robots that is not supported on the handyboard itself, is IR collission detection. How about including a modulator and driver for IR LED's, and a detector and demodulator (...) (27 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| (...) I've got a PIC chip programmed with IR collision-detection built into it (I'm trying to get some of the new 8 pin PICs to see if I can make an "all in one" unit. Basically the interface is two bits: bit 0 output - Turn on IR illumination (...) (27 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| I used the one available IR LED driver on the HB to drive a Radio Shack high-output IR LED. This, along with a Radio Shack IR decoder module (a little silver box about the size of a sugar cube that takes +5vdc and ground, and outputs a TTL level (...) (27 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| (...) I can vouch for this technique, this is basically what I do in my PIC program (except the randomness which is a nice touch BTW) and get rock solid detections. When the frequency is spot on to the center frequency (38Khz for the 1ISU60's) and (...) (27 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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| I too have used a similar technique. I used a 555 timer and a 567 tone decoder instead of a PIC. Using an IR can from Rat Shack, and five ir-LED's I get a sensor that sees straight ahead, 30 degrees and 60 degrees to each side. Set the 555 for about (...) (27 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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