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 Robotics / Handy Board / *4104 (-5)
  help needed for ir sensors & memory addressing latch
 
Hi all, I am new to robotics and have great difficulty trying to get the near-infra emmiter and detector on the HB to work properly. After studying the schematics, I figured out to activate J7, I should do a bit_set(0x1000,0b01000000) which appears (...) (26 years ago, 7-Jul-98, to lugnet.robotics.handyboard)
 
  Re: Steppers
 
Dear Terri, If the motors turn sparatically, that means the coils are probably not hooked up in the correct order. Try swapping them around and see if anything improves. The motors you are using are the bipolar type. There is a decent way of hooking (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
 
  Re: Serial line interrupt
 
(...) to (...) about (...) Hi, you could simply build and Acknowledge routine so that every character sent by the PC could be echoed back by the HandyBoard. It asks a bit more of processing time from the HandyBoard, but at least it's simple to build (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
 
  Steppers
 
Hi. I was reading through a compilation of emails from the Handy Board Q&A and found a lot of great questions, but no answers to them. I am trying to power some steppers, microsteppers from the RobotStore catalog, with the HB and am not having much (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)
 
  Re: Serial line interrupt
 
(...) I had the same problem a few weeks ago, ended up writing an interrupt handler for the Handy Board which will buffer up the incoming serial information so that none of it is lost. I guess the Handy Board normally just polls the serial port (I (...) (26 years ago, 6-Jul-98, to lugnet.robotics.handyboard)


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