 | | Re: HB power drain
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My board draws .068 amps when idle. MLB (...) (24 years ago, 15-Jul-00, to lugnet.robotics.handyboard)
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| | Re: IR (formally 6.8nF cap)
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yes, a variance of 1 kHz in the carrier frequency makes no difference at all to these sensors. f. In your message you said: (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | HB power drain
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Does anybody know what sort of power drain the HB has when it is not driving any outputs (servos or motors) ?. The reason I ask is that I am thinking of having a rechargable 9v PP3 battery connected as a reserve battery so that when the main battery (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | Re: IR (formally 6.8nF cap)
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So as the 39KHz value would be ok for either the IS1U60 (38KHz) or the hacked sensors (40KHz), will my idea for the hacked IR sensor distance measurement using the IR output circuitry to drive multiple LEDs also be valid ?. Thanks for the help. John (...) (24 years ago, 14-Jul-00, to lugnet.robotics.handyboard)
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| | Pins to connect for stacking h bridges
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Hello all, I have built a robot before, and sold it, and had stacked H-Bridge chips. I had also fed in an alternate battery source. I want to do this again and can't remember which pin to use for pos battery terminal (pin # please). I am not an (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | Re: IR (formally 6.8nF cap)
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there's not really a big diff in the performance of the ir sensors given 38 or 40 khz. so either is fine, +/- a few khz just doesn't really matter, you have to detune 10 khz or so for it to matter. there is an issue whereby there are two different (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | IR (formally 6.8nF cap)
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I have asked for confirmation as to which frequency (38 or 40 KHz) is correct. As my current components should give me a frequency of 39KHz (1/3.883KOhm*6.6nF) I should be able to use either with out to much problem. I am thinking of using the (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | IR Transmission/Reception
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Can any body confirm what frequency the IR transmission/reception system on the HB should be working at ?. The documentation (HB Manual) states that the HB has a 38KHz system but the Assembly Manual states for testing the transmission circuit you (...) (24 years ago, 13-Jul-00, to lugnet.robotics.handyboard)
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| | Re: "3D"
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[Steve Stevens] spake unto the ether: (...) I believe that IC variables must start with a letter a-z, A-Z, $ or _. Starting with a numeral 0-9 is illegal, yes? *Rich* (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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| | "3D"
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I see the variable "3D" used in several pieces of code. What is it and why can't I get my IC to recognize it? I keep getting a "parse error close to D." message when I try to use it. (24 years ago, 12-Jul-00, to lugnet.robotics.handyboard)
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