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| How does one get the Sharp GP1U52 recievers to acknowledge the 100/125 hz scheme? I've tried using the set_ir_recieve_frequency and ir_counts routines but I only seem to be able to get recognition on port 15. Is there another piece of code that has (...) (28 years ago, 6-Sep-96, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | Re: HB IR port
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| Hi Terry, I believe the transmitter circuit already include the 40Khz carrier. You need to write code to modulate the carrier with the low frequency of your information that you want to transmit too. You can do it with simple on/off at the lower (...) (28 years ago, 26-Mar-97, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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frequency
(score: 1.981)
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| | RE: legOS 0.2.2 dsound_play ?
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| Ok, I see the problem, this won't play WAV files (assuming the description below is accurate). If a new bit to the speaker is only being generated at 8KHz then you cannot get useful speech out of it. What you need is to PWM to get various (...) (25 years ago, 29-Nov-99, to lugnet.robotics)
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frequency
(score: 1.981)
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| | Re: IR outputB
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| Is the IR reciever on the HB the same thing as in the robot in MR:ITI book? I though it would be different. In any case, you can but...the reciever is more effective as a "wireless communication" device that can recieve various IR codes which you (...) (26 years ago, 24-Feb-99, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | task switching strategy?
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| I've been wandering through the kernal comparing it to similar kernals I have known or written, trying to understand the design choices. It appears that task are only switched at the 1ms timer interrupt and at yield() function call. yield() is only (...) (24 years ago, 21-Apr-00, to lugnet.robotics.rcx.legos)
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frequency
(score: 1.981)
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| | Re: Sigh (really off topic - my cat)
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| (...) Oliver (and Mark Millére, re: Jean Naté...Yet another Mark... I really think Todd should compile a list showing frequency of names... (sooo many Marks, Bryans, Kevins...)), I've used something similar; a 'pet repellant' called Reppers. Not (...) (24 years ago, 13-Feb-01, to lugnet.off-topic.fun)
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frequency
(score: 1.981)
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| | Re: time sampling under the rcx standard OS
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| Thank you Matt, the RCX loops much faster with your advices : about 10 loops per second. But as this frequency depends on the calculations included in the loop, I’m afraid this will not be enough. So I tried to download (URL) but it just appears as (...) (19 years ago, 18-Sep-05, to lugnet.robotics.rcx.nqc)
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frequency
(score: 1.981)
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frequency
(score: 1.981)
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| | Re: Balancing robots
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| Gordon (...) Good descriptions but a little basic for what we're discussing here. PWM can be used to control balancing in three ways. In the two parts of the cycle, the transistors are: - on or open-circuit - on-forwards or on-backwards - (...) (21 years ago, 27-Jan-04, to lugnet.robotics)
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frequency
(score: 1.981)
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| | Re: Analog port shaft encoder
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| Tried what you said Joshua, I went through all the analog ports and manually fed them with a TTL signal from a function generator at a relatively low frequency of 5Hz and wrote this little test code to test it. In this example, the sencdr3.icb has (...) (25 years ago, 23-Oct-99, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | Re: Melted Pieces
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| (...) I too have had the odd "melted" piece in my more recent kits... I suspect most of us have. However I have not had nearly the frequency you seem to be observing. I've only had two melted (malformed) pieces in the last 20-30 kits I've bought and (...) (24 years ago, 11-Jan-01, to lugnet.starwars)
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frequency
(score: 1.981)
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| | Re: Questions (possible spoiler)
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| Richard Dee <richard.dee@virgin.net> wrote in message news:MPG.11cb7503e6b...net.com... (...) Yes, some do. But others, like your TV, radio, and CBs do not. They just recieve messages over the airwaves. It may be that you are right and this is what (...) (25 years ago, 12-Jun-99, to lugnet.starwars)
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frequency
(score: 1.981)
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| | Re: windows CE
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| (...) My current project (at work) involves both IRDA and IR-remotes. So this ties in with the RCX stuff to a great extent. The IRDA standard does not use a carrier frequency. The IR led is pulsed for a portion of a bit time on a standard serial (...) (26 years ago, 3-Mar-99, to lugnet.robotics)
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frequency
(score: 1.981)
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| | Re: New MOCs: Space Jalopy, Roadster, and Tug
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| (...) Ha! I guess you guys got spoiled with my frequent new MOCs. Well, I've been working, never fear. This time, I'm replacing frequency with quantity. I've been working on this: (URL) about 90% done. It'll probably be finished this weekend. :^) (...) (24 years ago, 22-Feb-01, to lugnet.space, lugnet.build)
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frequency
(score: 1.981)
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| | Sound
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| I wanted to make the RCX make a certain pitched sound based on sensor readings the other day (primarily the light sensor), however it appears you can't make the frequency of the command equal to a variable. Does anyone know why this is and if there (...) (25 years ago, 31-Aug-99, to lugnet.robotics)
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frequency
(score: 1.981)
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| | IR port
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| Hi $ALL! I just assembled a handyboard. The assembly documentation (hba.pdf) says, that there should be a ~40kHz square wave at pin 2 of U9 (HC04). My frequency counter shows 72 kHz... So I took a new capacitor (682) and a new resistor (3k83) but (...) (23 years ago, 11-Nov-01, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | Re: Whatever happened...
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| (...) Oh, I just hate it when Calum's right about stuff. Prolly almost as much as he hates it when I'm right. Fortunately for me, there's a frequency difference there. :) (...) Me either. (URL) That wiki scares me, it takes obsession to a Whole New (...) (20 years ago, 21-Dec-04, to lugnet.org.ca.rtltoronto)
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frequency
(score: 1.981)
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| | Re: sensors, actuators, and software, oh my!
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| (...) A: How many detectors do you have and what are their transfer functions? The reality is that it is the number of -observers- which matters. (...) No, they are not the same thing, they can be converted into each other according to a well (...) (22 years ago, 4-Apr-03, to lugnet.robotics)
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frequency
(score: 1.981)
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| | Re: RCX Replacement Firmware
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| "John Barnes" <barnes@sensors.com> wrote in message news:I6uDu9.MqE@lugnet.com... (...) I hope this proves to be the case. (...) There's user configuration control, but not over "concurrent processes". The best way to think of it is that the opcode (...) (20 years ago, 11-Nov-04, to lugnet.robotics)
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frequency
(score: 1.981)
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