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  1. Replies
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    Re: S2 Availability: Go North, Young Man!

    Thanks for the heads-up Erco. I ordered one today (1-12) so it looks like they still have some in stock at the reduced price. Looking forward to playing with my new S2!
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    Re: My s2 robots came today !!!

    I know the S2 is really new and people are just getting them, but I'm wondering if anyone has messed with the hacker port yet. I'm curious about the expansion possibilities and adding new sensors,...
  3. Awesome video! Thanks for posting the link. I...

    Awesome video! Thanks for posting the link. I think I've seen some of that footage before but it was a much lower quality clip. The Wrights are some of my personal heroes. Both the Fred Kelly or Tom...
  4. OBC, What's the threshold on whether or not we...

    OBC,

    What's the threshold on whether or not we should request table space? I have a couple of hobby-level projects I'd like to bring but I don't know if they warrant requesting a table. I wouldn't...
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    Two things I'd really like to see are more RF...

    Two things I'd really like to see are more RF module options for microcontroller communications applications, and a Propeller-based version of the Penguin robot.
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    View Post

    Good deal! I love the SpinStamp andˇit's great to pick up another oneˇat half-price.ˇI've usedˇmine in a couple of small robotics projects. Thanks Parallax!
  7. Chris, Thanks for the update, I was just...

    Chris,

    Thanks for the update, I was just curious. I'll have to check into the cause further at some point. I can probably just add a command to turn the LCD on somewhere in the main code loop...
  8. Chris, On a related note - does the backlight...

    Chris,

    On a related note - does the backlight eventually turn off if not "refreshed" by a software command to keep it on? I have one project with a 2x16 LCD running 24/7 and I noticed that the...
  9. Replies
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    Oops! The sale price was so low that it...

    Oops! The sale price was so low that it short-circuited my reading comprehension circuits. Now I only feel slightly bad about missing out on the PPDB scratch & dent sale... =)
  10. Replies
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    I'm starting to feel like a chump for playing...

    I'm starting to feel like a chump for playing full price for a PPDB... =(
  11. Replies
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    Chris, Thanks. I sent tech support an e-mail...

    Chris,

    Thanks. I sent tech support an e-mail this morning detailing my problems.

    Mike
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    Chris, I checked my custom board with a meter...

    Chris,

    I checked my custom board with a meter just to make sure it was +5VDC and that the ground was ok. I didn't know about the blinking rate, thanks for the info. My unit just can't get a lock...
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    Chris, One other weird thing is that it seems...

    Chris,

    One other weird thing is that it seems like the GPS LED is blinking at different rates. Normally it flashes once per second when it's waiting for lock but I just noticed that when I move it...
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    Chris, My robot has a custom board, but power...

    Chris,

    My robot has a custom board, but power to the GPS comes from a +5VDC regulated circuit (fed by a 7.2V battery). I've also tried it from a BOE, connecting it to the servo header blocks with...
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    Parallax GPS problems

    Hi,

    I am wondering if anyone else has had any problems with the Parallax GPS module and can offer some advice. I have one that has been working fine for months on a robot but now just will not...
  16. Stefan - Right! Now I totally understand why...

    Stefan - Right! Now I totally understand why objects have the start/stop methods. I was trying to keep my little test program simple and ended up working myself right into a corner.

    Jim - Thanks...
  17. Mike, Thanks, I didn't know about that...

    Mike,

    Thanks, I didn't know about that restriction on COGNEW/COGINIT. That's probably why nothing was working for me in this case.

    The code was just something I was playing around with....
  18. Converting spin method to object question

    Hello,

    I'm playing around with the following test code:



    CON
    _clkmode = xtal1 + pll16x 'set for PROTOBOARD!!
    _xinfreq = 5_000_000
    TermRX = 31 'Prop plug...
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    Erco, Wow, those sound like pretty interesting...

    Erco,

    Wow, those sound like pretty interesting relays. They must be discontinued, I can't find them stocked at any of the usual vendors. Too bad, but I'll keep my eyes open for some surplus!
    ...
  20. Jeff, I haven't tried using a hex inverter,...

    Jeff,

    I haven't tried using a hex inverter, but I can't think of a reason why it wouldn't work. I just used the transistor circuit because I could make it really quickly out of parts I had in my...
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    Robot Room also has instructions for a "classic"...

    Robot Room also has instructions for a "classic" bipolar H-bridge here:

    www.robotroom.com/BipolarHBridge.html

    I'd also recommend Mr. Cook's excellent "Intermediate Robot Building" book. There...
  22. Jeff, I think I tried the software...

    Jeff,

    I think I tried the software adjustmentˇand it didn't work, but I can't remember exactly why. My notebook from that project got lost in a move.ˇHopefully you'll have better luck. I was able...
  23. Jeff, I'm not sure about the 4x20 LCD, but I...

    Jeff,

    I'm not sure about the 4x20 LCD, but I had a similar problem with the Parallax 2x16 LCD and I would bet it's the same situation. If I remember the details correctly, the serial out from the...
  24. I second the David Cook books, particularly...

    I second the David Cook books, particularly "Intermediate Robot Building" for some great practical advice on motor drivers, sensors and mechanics as used on small BOE-bot sized robots. They are...
  25. Thread: autonomous

    by MinimumWage
    Replies
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    858

    Chaz, Check out the diydrones.com website....

    Chaz,

    Check out the diydrones.com website. There are some BS2 autopilots described on there that might be a good starting point for you. I believe one author used a BS2p for a basic GPS waypoint...
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