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 | | FW: Ir transmission
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| -----Original Message----- From: Ralph Hempel [mailto:rhempel@bmts.com] Sent: Saturday, April 17, 1999 9:27 AM To: robots@jpsc.co.uk Subject: RE: Ir transmission (...) Right you are John. I've got that code too. My only question is do we want it as (...) (25 years ago, 11-May-99, to lugnet.robotics.rcx.pbforth)
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ir
(score: 1.893)
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| | Re: Blocking IR
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| In addition to what I mentioned in the previous message, I also set the sensor input port to active. Setting it to passive also works, in which case the ambient light level seems to be around 480-495, and the sensor aimed directly at the IR port (...) (25 years ago, 21-Jun-99, to lugnet.robotics.rcx.legos)
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ir
(score: 1.893)
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| | "A cunning plan"
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| I am hoping someone has done some/all of this already... Aims: 1 To develop downloadable RCX code on the PC. 2 To develop immediate RCX code on the PC. 3 To run immediate code on the PC and the PalmPilot. 4 Spirit.ocx functionality. 5 IR comms to (...) (25 years ago, 9-Nov-99, to lugnet.robotics.rcx.java)
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ir
(score: 1.893)
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| | Wireless IR-RF gateway movie online :-)
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| Hi all, just a message to let you know that we just put on-line a small movie of the RCX with the IR/RF gateway working :-) You can find it in the bottom of the wireless web page at (URL) Gai pj@sssup.it (20 years ago, 16-Aug-04, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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| | Re: Connecting two RCX's
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| (...) Another case would be where you also want to use IR for doing radar. If you had IR messages bouncing around for both radar and communication, it might confuse the radar algorithm or generate incorrect readings. (You'd also have to reserve a (...) (25 years ago, 3-Nov-99, to lugnet.robotics.rcx.nqc)
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ir
(score: 1.893)
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| | Re: Ir transmission
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| (...) I can't get EMIT to work, in NQC I do this: SendMessage(255); // Flash Sleep(3); ThisRaw = RAW_LIGHT; and the raw light sensor reading has big spikes for IR reflections. but: [ HEX ] FF EMIT 30 msWait RawLight LIGHT? does not, I think that (...) (25 years ago, 10-May-99, to lugnet.robotics.rcx.pbforth)
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ir
(score: 1.893)
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| | PIC-RCX half-duplex IR receive and transmit
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| I just finished a PIC16F84A application which receives IR commands from the RCX or RCX remote control, saves them and transmits another command back again. You can put your own command(s) in EEPROM for transmission. The firmware is commented (well, (...) (21 years ago, 16-Jan-04, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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ir
(score: 1.893)
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| | Re: IR Proximity Detection Problem
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| Dean, Philo, Thank you both very much: Including the sensor monitoring in a "repeat"-loop brouhgt the solution. Works quite perfect. I guess "SendMessage" is somewhat slow, i. e. the IR-emission/reflection. Now I am going to even improve the (...) (22 years ago, 17-Jan-03, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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| | Re: Blocking IR
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| (...) I doubt you have a broken RCX. If you did, firmdl.c would not download firmware correctly. (...) That is a good thing to try; I suppose it did not help things? (...) I don't see why you couldn't post the .srec file. I don't know if you also (...) (25 years ago, 20-Jun-99, to lugnet.robotics.rcx.legos)
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ir
(score: 1.893)
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| | RE: Ir transmission
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| (...) Alas, I only used the firmware timers available as core RCX firmware calls. I can look through Kekoa's disassembly to see if there are higher resolution timers available ( I think the motor timers might be useful ) In general, NQC hooks in (...) (25 years ago, 15-Apr-99, to lugnet.robotics.rcx.pbforth)
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ir
(score: 1.893)
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| | RE: Ir transmission
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| (...) I think its around 16 Mhz for the crystal and 4 MHz for the cycle time. I think there is a msec timer buried in the OC1A handler (see Kekoa's disassembly) I agree that we want something to trigger a run flag instead of having to check the (...) (25 years ago, 16-Apr-99, to lugnet.robotics.rcx.pbforth)
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ir
(score: 1.893)
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| | Re: IR communication PC <-> brick with NQC
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| (...) The RCX uses a special packet protocol which involes a lot of binary (non-ASCII) bytes, so controlling it with Hyperterminal won't work very well. Your best bet is to either write your own code to send the packets of the serial port or just (...) (24 years ago, 20-May-00, to lugnet.robotics.rcx.nqc)
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ir
(score: 1.893)
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| | ir communication
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| Hi, i am just doing my first steps with legOS and i want to send some data back to the PC. Is there any kind of software for the PC to read that data and save or display it? TIA Chris (23 years ago, 13-Aug-01, to lugnet.robotics.rcx.legos)
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ir
(score: 1.893)
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ir
(score: 1.893)
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| | Re: Sending ir packets
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| (...) Here ya go: Remember start bit (sometimes called 2 stop bit mode) 55 00 D1 ~D1...Dn ~Dn C ~C Add all the normal D parts in a single Byte for Chksum. Code chunk for example ... unsigned char MuxStr[] ={0x55,0xf7,0x08,0x0...xf8,0x07}; count = 7; (...) (23 years ago, 29-Sep-01, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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| | Re: IR transmission, strange coding ?
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| (...) As far as I remember (it's been > 10 years) startbits are 0, stopbits are 1. (...) This is strange, are you sure it is not the odd parity bit? (...) That's fine, 1 is the 'passive' and 0 is the 'active' level. Jürgen (23 years ago, 6-Nov-01, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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| | Re: IR header how optional
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| (...) Whether serial transmission is as simple as start:data:parity:stop repeated, or not, I still have no idea. But I'm posting again to say in those calculations I was off a whole order of magnitude, sorry. I imagine the calculator I used reported (...) (22 years ago, 2-Feb-03, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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| | Re: IR Sensitivity - Was: 1.5/2.0 infrared problem
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| (...) Mine have been apart more often than I'd like, too! :-) (...) My guess would be mostly for increased communication speed. With the higher baud rate, the duration of the 2-byte Spybot/Manas packets is halved. This allows for fewer collisions (...) (21 years ago, 26-Oct-03, to lugnet.robotics.rcx)
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ir
(score: 1.893)
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ir
(score: 1.893)
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