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 Robotics / Handy Board / *7463 (-5)
  Re: Overcharged battery?
 
no i disagree with this answer. the HB is designed to be left on normal charge indefinitely. the batts can get a little warm. if they are hot then something is wrong, but a little warm is nothing to worry about. when fully charged and with no load (...) (27 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
 
  Re: Non-polaroid Sonar
 
In the sonar code from the web site, the rising edge detection on timer input channel 3 (TIC3) is set like this: bit_clear( 0x1021, 2 ); bit_set( 0x1021, 1 ); According to the little pink book, address 0x1021 is the Timer Control Register 2 (TCTL2) (...) (27 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
 
  Re: Overcharged battery?
 
(...) Ouch. You don't want to do that too much or you will torch (may have torched) your NiCds. NiCds do NOT like to be overcharged, it causes a problem called Voltage depression that many mistakenly call "memory effect". [snip] (...) Servos will (...) (27 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
 
  Re: Overcharged battery?
 
actually this is to be expected. with no load, the diodes produce no drop. if you're worried, try hooking a DC motor (or other real load -- light bulb, 10 ohm resistor, etc). across the servo motor supply and then measure the voltage. you should see (...) (27 years ago, 15-Mar-00, to lugnet.robotics.handyboard)
 
  Overcharged battery?
 
I've got a pre-assembled Gleason Research HB with expansion board, and have a couple questions. We've left it plugged in (on normal charge mode) for a week or so. I started to look at the specs to hook up a Futaba servo (6V), and found that with no (...) (27 years ago, 15-Mar-00, to lugnet.robotics.handyboard)

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