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usb
(score: 1.267)
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ir
(score: 1.266)
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ir
(score: 1.263)
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range
(score: 1.262)
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usb
(score: 1.262)
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|
 | | Re: roboball experience?
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| (...) I can't comment on the sensors, but I do have experience w/the balls. The balls are of good quality, well-balanced, and they are a brilliant IR source. (Standard light sensors see them just fine.) However, battery life is quite short (approx. (...) (20 years ago, 23-Mar-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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ir
(score: 1.256)
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tower
(score: 1.254)
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| | Suspected LNP integrity message overflow
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| Hello Has anybody encountered problems using the LNP integrity API, when many frames/s are received? We are working with a image recognition system on a Linux machine that computes the position of robots and sends an integrity packet of 18bytes (...) (20 years ago, 5-Apr-05, to lugnet.robotics.rcx.legos)
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ir
(score: 1.253)
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ir
(score: 1.245)
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| | Re: navigation and communication
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| (...) We have worked with a big chart with black crosses on a white wooden surface. This works pretty well, since with the reflection of the light of the LED, black and white can be easily recognised. Then the ambient light has not a big influence. (...) (19 years ago, 8-Jun-05, to lugnet.robotics.rcx.legos)
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ir
(score: 1.242)
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| | Re: roboball
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| (...) Here's what the kids can do to get started. Build a simple robot with a forward pointing light sensor. Place the activated roboball right in front of the robot and take light readings as the robot moves backwards. This can be done manually or (...) (19 years ago, 15-Jun-05, to lugnet.robotics.rcx, lugnet.robotics.rcx.robolab)
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ir
(score: 1.240)
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| | RE: Extending IR communications
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| Orient both RCXs so that they are pointing towards the ceiling. Set the RCX transmit power level to high (default is probably low power); there's probably some Lejos function to do this -- all it requires is setting one bit in an I/O register to 1. (...) (19 years ago, 5-Aug-05, to lugnet.robotics.rcx)
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ir
(score: 1.234)
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ir
(score: 1.234)
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| | Re: ScriptEd - Question
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| (...) Hi Steve, I see the message apearing in the status bar, but it's an error! Error is : Error (0xe0050801) from VPBrick compiler The error apears in following line: const delay1 = 1000 // minimum stop time in station (10 seconds) The word (...) (19 years ago, 4-Aug-05, to lugnet.robotics.rcx)
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ir
(score: 1.232)
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| | RCX to RCX LNP
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| I'm trying to write a BrickOS program that I can use to check the voltage on other RCXs (which use standard firmware). I want to send the Get Battery Power command (0x30 and 0x38), and display the returned value on the display. Can anyone tell me if (...) (19 years ago, 10-Aug-05, to lugnet.robotics.rcx.legos)
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ir
(score: 1.230)
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ir
(score: 1.228)
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| | IR-based proximity measurement
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| I'm changing the subject line in the middle of the thread. Wonder what the server will do with that... I tried out Brian's "Max-picking" ping method, as well as a few other things. Here's a summary of what I found: 1) If the active sensor readings (...) (19 years ago, 16-Sep-05, to lugnet.robotics.rcx.nqc)
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ir
(score: 1.226)
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| | RCX to RCX NQC
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| In a semi-followup to Steve's earlier "remote battery tester"... While the standard firmware provides almost no way to get bytes into the RCX (other than "Message()", one byte at a time), it can certainly export them ("SendSerial"). And it occured (...) (19 years ago, 13-Sep-05, to lugnet.robotics.rcx)
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ir
(score: 1.225)
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| | Re: RCX to RCX NQC
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| (...) Ahh, now I understand why it is called a "toggle bit" - I somehow misinterpreted this to mean a new command had the toggle bit set (to 1), and if the sending unit doesn't recieve a reply it should re-transmit the command with the toggle bit (...) (19 years ago, 14-Sep-05, to lugnet.robotics.rcx)
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ir
(score: 1.224)
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| | RE: RCX to RCX NQC
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| There's another little problem that you may need to program around. There's a bug in the ROM firmware that could end up requiring a 30-millisecond delay between when a RCX sends out a message and when you should start sending the first character of (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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ir
(score: 1.224)
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