 | | Re: Shutting off illumination LED on Light Sensor for LIDAR
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Ralph Hempel had an example of the heat-shrink tubing solution here: (URL) also tried used some black vinyl from a binder? -Tim (...) (24 years ago, 28-Mar-01, to lugnet.robotics)
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| | Re: Shutting off illumination LED on Light Sensor for LIDAR
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(...) You can find light sensor schematics on Michael Gasperi's page: (URL) Using the RCX IR emitter as the illumination source. Don't know (...) Someone has already tried this. You can check Simen Svale Skogsrud's page for an example, with NQC (...) (24 years ago, 28-Mar-01, to lugnet.robotics)
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| | Unsubscribe
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Sorry, I knew I shouldn't post this but I can not unsubscribe to this newsgroup. I have tried to stop this by going through the option and it doens't recognize this subscription. Please take t-f-l-y@home.com out of you system. Thanks (24 years ago, 28-Mar-01, to lugnet.robotics)
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| | Re: Lego accessories for the photographer
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(...) Sort of... I borrowed the older Coolpix 900 I have at my office ;o) It is quite good for the kind of resolution needed for the web ! Philo (...) (24 years ago, 29-Mar-01, to lugnet.robotics)
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| | Re: Shutting off illumination LED on Light Sensor for LIDAR
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As an alternative method to tubing, you can use an IR filter (black inversible film) as described on my page : (URL) doesn't work with Lego visible lamp though... Philo (URL) (24 years ago, 29-Mar-01, to lugnet.robotics)
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| | Re: lego cap, polarity, etc
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(...) A couple of comments on this... An 'inverter' with respect to DC creates AC, it doesn't swap polarity. If you're going to use the term correctly always use 'invert polarity' and never 'invert' by itself. If you go into a store and ask for a (...) (24 years ago, 28-Mar-01, to lugnet.robotics)
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| | Re: lego cap, polarity, etc
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No. DO NOT UNDER ANY CONDITION CONNECT AN ELECTROLYTIC (ie one with +/- on the terminals) IN REVERSE. The electrolyte is a high resistant in one direction only. The other direction is nearly a short. You may end up hurt as the capacitor blows up in (...) (24 years ago, 28-Mar-01, to lugnet.robotics)
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| | Re: Shutting off illumination LED on Light Sensor for LIDAR
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I drilled a hole in a 1x2 brick to give the light sensor a better sense of direction and to block the LED. The goal was to have the light sensor seek an IR beacon. (...) (24 years ago, 29-Mar-01, to lugnet.robotics)
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| | Re: lego cap, polarity, etc
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(...) <snip> The polarity markings Andy Gombos was referring to are printed on the LEGO-compatible package itself. The LEGO "capacitor" is in fact an electrolytic cap with plenty of support circuitry, and I assure you there is no danger of blowing (...) (24 years ago, 29-Mar-01, to lugnet.robotics)
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| | Re: Shutting off illumination LED on Light Sensor for LIDAR
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(...) Thanks for all the tips, everybody. I set out last night to open up my light sensor and add a jumper to allow me to take the LED out of the circuit. I was unsuccessful in getting the casing open, even after cutting the underside latching tabs (...) (24 years ago, 29-Mar-01, to lugnet.robotics)
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