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 Robotics / Handy Board / *7164 (-10)
  Re: "Traces"?
 
(...) 'Trace', and 'track', are common parlance, for the wiring built onto the printed circuit board inside a unit. So the post is saying that you have to actually cut the copper 'tracks' inside the unit itself. Best Wishes (25 years ago, 11-Jan-00, to lugnet.robotics.handyboard)
 
  "Traces"?
 
(...) I've seen "trace" used a couple times as regards the Handyboard, concerning the leads from/to the inputs, I think??? What does it mean, what are they? Thx :) - Scarius (URL) (25 years ago, 11-Jan-00, to lugnet.robotics.handyboard)
 
  Re: GP2D12 Pinouts
 
(...) Just visit: (URL) are some modifications to the handyboard required, because the sensor does not work with the pull-up resistors on the handyboard. You have to cut some traces on the handyboard. A detailed description and a picture of the (...) (25 years ago, 11-Jan-00, to lugnet.robotics.handyboard)
 
  GP2D12
 
I just managed to connect a Sharp GP2D12 to my Handyboard. The advantage compared to the GP2D02-device is the analog output which does not consume processing power for clocking the sensor. Further information can be found at: (URL) (25 years ago, 11-Jan-00, to lugnet.robotics.handyboard)
 
  RE: More servo stuff
 
I had the same problem. The servo would run fine if the program was not doing anything else. But if I was updating the pwm to the motor ports then the servo would jitter. I figured it was because the extra overhead was screwing up the timing on the (...) (25 years ago, 11-Jan-00, to lugnet.robotics.handyboard)
 
  Re: More servo stuff
 
(...) I did this but it didn't help. *sigh* Thanks for the tip! (25 years ago, 10-Jan-00, to lugnet.robotics.handyboard)
 
  Re: GP2D12 & Expansion Board
 
You can cut the trace going to the pullup resistor corresponding to analog(0) on the main board and then all of the expansion board analog inputs will be floating. Analog(0) is multiplexed to provide all of the analog inputs on the expansion board. (...) (25 years ago, 10-Jan-00, to lugnet.robotics.handyboard)
 
  Re: More servo stuff
 
Try placing a capacitor across +5V and ground. Get something in the range of 0.1 - 0.47 microfarads and just plug it into the headers on the HB. This solved my problems. -Scott Harris (...) (25 years ago, 10-Jan-00, to lugnet.robotics.handyboard)
 
  GP2D12 & Expansion Board
 
Can I use the Lego ports on the Expansion board for the GP2D12? Do these ports have pull resistors and if so can they be disconnected so the pin float as required by the Sharp sensors? -Drew (25 years ago, 10-Jan-00, to lugnet.robotics.handyboard)
 
  [Fwd: pneumatic info]
 
-- MIME ATTACHMENTS DISCARDED: 1. Content-type: MESSAGE/RFC822 Content-Length: 1160 (25 years ago, 10-Jan-00, to lugnet.robotics.handyboard)


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