 | | Re: Decoding the LEGO IR remote control
|
|
(...) The Lego IR protocol is pretty simple. If you have demodulated output, why not dump some samples here so we can see if they make sense? The encoding is straight serial, but inverted - a pulse of light indicates a zero or a low voltage on a (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx)
|
| |
| | Re: Tasks vs. program slots
|
|
(...) They are one and the same. When transmitting, the IR tower just uses the RS-232 TXD line to switch on the 38kHz carrier. It also has some timing circuitry to keep it alive, and an Rx side, but the Tx is painfully simple. You'll probably see (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Tasks vs. program slots
|
|
(...) The Sharp GP1U581Y is a 38kHz receiver that incorporates an amp, a limiter, a bandpass filter, and a demodulator ... outputs a low while receiving an IR signal, a +5V high when not. It does NOT do any decoding. (...) From what I've been seeing (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | [OT] Decoding the LEGO remote control
|
|
Hi All - - A couple of weeks ago I received my LEGO MindStorms #9738 remote control. It's really cool to be able to select, start, and stop programs ... override the motor controls ... send messages, etc. If fact, it's SO COOL that I want to be able (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Decoding the LEGO IR remote control
|
|
Hi All - - A couple of weeks ago I received my LEGO MindStorms #9738 remote control. It's really cool to be able to select, start, and stop programs ... override the motor controls ... send messages, etc. If fact, it's SO COOL that I want to be able (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx)
|
| |
| | Re: Tasks vs. program slots
|
|
(...) What exactly does the Sharp IR receiver do? If it uses Sharp's ASK modulation, then you may have a problem. Ideally, what you want is something like a phototransistor to a good preamp, followed by a bandpass around 38kHz, then some sort of (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Code Repository
|
|
(...) I agree, a central site is key to this working. I thought a web site might be able to give the best interface, especially if it had a java front end that facilitated checking code in/out. (...) In the sample code that came with the NQC (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Performance problem with Java API
|
|
Hi! I am currently working on a Java API for the RCX to implement the features of the PBrick (SPIRIT.OCX) interface in Java. So far, using the Java Comm API 2.0 and Kekoa Proudfoot's description, it does everything right except for one thing: (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx)
|
| |
| | Re: Code Repository
|
|
(...) Pick one to be master and have the others shadow it for better performance? (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
| |
| | Re: Code Repository
|
|
Whoops, there are already 4 propositions of nqc code repository. Which one is ideal? imho, the best we can have is only one place, with all the stuff. Or some kind of colaboration between the different hosts. Else, this won't be as usefull as it (...) (25 years ago, 18-Sep-99, to lugnet.robotics.rcx.nqc)
|
