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 | | RE: PipeXplorer
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| If your desiring greater distance - go get a Amature Radio license. In the US there are several sections of frequency bands that are for experimental use, and even RC (radio control). A reasonable knowledge of electronics and some fairly easy study (...) (26 years ago, 24-Dec-98, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: Data acquisition through analog input
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| Mr. Han, I think you can try to transmit the data through radio frequency transmitter to the receiver which is connected to the PC. I have tried this but it is digital data and not analog. Thanks, Wil. ----- Original Message ----- From: Chul Hun,Han (...) (25 years ago, 16-Oct-99, to lugnet.robotics.handyboard)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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| | Re: Meeting Locations at Gencon
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| (...) Hmmm, why don't we get radios instead? Or manage to get a frequency on motorola ones or something. There might just be an easier way of keep each other posted. What day will Brikwars be, and what tek level? I'll help coordinate if no events (...) (22 years ago, 25-Jul-02, to lugnet.gaming)
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frequency
(score: 1.982)
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frequency
(score: 1.982)
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| | Re: PLEASE fix links
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| This is actually one of the short list of reasons why my Lugnet frequency has dropped (besides obviously the biggee, time constraints). I am getting more and more frustrated with the broken links as more and more people are using the web interface (...) (18 years ago, 17-Feb-07, to lugnet.admin.suggestions)
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frequency
(score: 1.982)
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| | RE: Another update for WIRRL
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| Just in case people are a bit confused by the schematic, the circuit would be needed for each device that will participate in an RF bridge. I abandoned the idea of using two different frequencies because: 1) As soon as you attempt communication (...) (22 years ago, 22-Oct-02, to lugnet.robotics)
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frequency
(score: 1.982)
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| | Re: Motors comparison page updated
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| (...) I have come across some industrial heater controls. To get the heaters at part power (to run them in a closed-loop temperature control), a method of burst firing is used. The circuit measures the zero crossings of the AC supply and turns the (...) (14 years ago, 25-Feb-11, to lugnet.robotics)
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frequency
(score: 1.982)
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| | LCD and interrupts
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| (...) Actually, that's not quite true. The systick interrupt always runs, and LCD writing happens as _part of_ systick. Any interrupt, by default, disables further interrupts until it's done. Systick is actually different, because it re-enables (...) (28 years ago, 11-Mar-97, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | Re: Motor Speeds
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| (...) into (...) port. Consider implement PWM (for Motor Control) with second HC11, why not implement DC motor Controller with Frequency Lock Loop to control motor position and regulate motor speed? Suggested Specification: M68HC11 PWM Output using (...) (28 years ago, 24-Feb-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: Mindstorms and FM Micro Transmitter
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| Have had some troubles with getting the receiver to hone in on the exact frequency (for now its 90.0 Mhz). If the receiver is in a different room, the FM transmitter has difficulties transmitting through walls etc. It needs more juice (only runs on (...) (26 years ago, 10-Oct-98, to lugnet.general, lugnet.robotics)
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frequency
(score: 1.981)
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frequency
(score: 1.981)
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| | RCX Audio hardware?
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| The only audio hardware that I see controlled by the RCX/legOS code is a frequency generator. Is this the only audio hardware? Is there any sort of ADC on the RCX or that I can connect to the RCX that can control precisely enough to do sound (...) (25 years ago, 18-Feb-00, to lugnet.robotics)
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frequency
(score: 1.981)
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| | Re: Walmart no longer lists Lego!
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| (...) Its possible that Lego refuses to stuff in the RFID (Radio Frequency IDentification) tags that Walmart has started requiring. Lego may agree with the sentiment that RFID tags in consumer articles are a violation of personal privacy. This might (...) (20 years ago, 19-Jul-04, to lugnet.general)
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frequency
(score: 1.981)
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| | Re: IR collision avoidance
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| (...) The Radio Shack LEDs should work fine. The trick is that these things are very sensitive to intensity, duty cycle, and frequency stability. To modify intensity change the amount of current flowing through the LED (lower resistor value == more (...) (28 years ago, 18-Mar-97, to lugnet.robotics.handyboard)
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frequency
(score: 1.981)
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| | Re: New Press Release about Power Function Trains
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| (...) The problem with Bluetooth, WiFi, Wireless USB and any other kind of radio frequency transmission would be the horsepower requirements required to decode it (i.e. microprocessor or custom ASIC both of which require extra circuitry to make them (...) (17 years ago, 27-Mar-08, to lugnet.trains)
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frequency
(score: 1.981)
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| | Re: "Servo" Driver for NQC
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| (...) Well I haven't seen your version of the Project-X design, but I'll assume it's similar (albeit vastly inferior) to the one I'm entering. I'm assuming that for the sake of speed, you are keeping moving mass to a minimum and hence, not loading (...) (23 years ago, 30-Jan-02, to lugnet.robotics)
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frequency
(score: 1.981)
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frequency
(score: 1.981)
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| | Re: time sampling under the rcx standard OS
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| (...) Sorry, I didn't explain. This program only aims at checking the loop frequency capability of the rcx firmware, implementing a PWM. The rotation sensor is only used as a potentiometer knob, allowing me to determine by hand the PWM pulse as (...) (19 years ago, 19-Sep-05, to lugnet.robotics.rcx.nqc)
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frequency
(score: 1.981)
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