 | | RE: Drive R/C Servos with the RCX and pbForth (long)
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(...) I hear you, John. Learning a new language can be a bit tricky, and I won't go into the details of why I think it's a good idea to learn different languages to get the benefit of different ways of thinking about problems...oops, don't get me (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | Re: Drive R/C Servos with the RCX and pbForth (long)
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Ralph - I'm interested in the use of servos with the RCX, but I have no interest in learning the quirks of another computer language. I'm already a bit familiar with Visual Basic,and control the RCX with it. Can your pbForth solution be duplicated (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | RE: Drive R/C Servos with the RCX and pbForth (long)
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(...) I should add here that no external power source is necessary to drive the servo. This is important since a micro or miniservo and an SMT version of the driver can be made to fit INSIDE a space similar to a worm gear box (6588 in LDraw). I'm (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | RE: Drive R/C Servos with the RCX and pbForth (long)
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(...) No, the servo needs power to the + and ground terminals to drive the motor to the setpoint indicated by the signal wire. If I don't invert the signal there is no power for about 30msec and only 1 or 2 msec ov voltage on the motor port. By (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | Re: Drive R/C Servos with the RCX and pbForth (long)
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(...) If you're using a custom motor driver in pbForth, why use the inverter circuit at all? Why not just generate the desired waveform directly? Is there not enough current to drive the servo that way? --Ben (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | Drive R/C Servos with the RCX and pbForth (long)
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Hi again everyone! A few days ago I announced that I had developed a nice little circuit using easily available parts that would let you connect servos to the RCX - with no external batteries or microprocessors or anything! At that time, I said that (...) (25 years ago, 12-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth, lugnet.robotics.rcx)
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| | Re: Using Servos with the RCX - Yes!
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(...) YES! Great job Ralph! (...) I love this. I could drive up to 6 pneumatic cylinders with a single RCX... wow! (...) The circuit is very simple to set up even for a non-electronic guy like myself. Give me just the time to lay my hands on one of (...) (25 years ago, 10-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Using Servos with the RCX - Yes!
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Hi all, I've finally got my RCX servo driver circuit working. It was actually working months ago but I couldn't get the servo to stop jittering. Then I swapped in a different servo, and it worked like a champ! (URL) Before you get all excited, the (...) (25 years ago, 10-Feb-00, to lugnet.robotics, lugnet.robotics.rcx.pbforth)
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| | Re: pbFORTH needs better uploading, docs
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(...) Getting a working legOS development evironment no longer takes a day. On Windows plateforms it only takes the time to download WinlegOS.exe (5.6Meg) and running the installer (a few minutes). The system is completely configured and ready to (...) (25 years ago, 2-Feb-00, to lugnet.robotics.rcx.pbforth)
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| | RE: installation problem!
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(...) Ummmm, I think if you use NQC command line, the counter only goes to 1300 or so. I wonder 1f RCXCC is reading the SRECORD file and padding it to 16384 bytes. I wonder if it is actually loading the old firmware. I wonder.... Cheers, Ralph (...) (25 years ago, 29-Jan-00, to lugnet.robotics.rcx.pbforth)
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