propeller and servo's
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how big of resistors should I be using between the propeller proto board and servo's And/or a HB25.
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Thank's Brian
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·"Imagination is more important than knowledge..." ·· Albert Einstein
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
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Comments
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
http://www.diycalculator.com/subroutines.shtml· My favorite website ( Bet you can't guess why)
The HB25 shouldn't be able to "spike" its input. There could be spikes on the ground connections or induced through the wiring harnesses by running high power wires alongside logic connections. QuattroRS4 has discussed an application using a Stamp to control a 15hp motor with all the electrical noise and spikes involved ... with no problems (eventually) from power surges (see: http://forums.parallax.com/showthread.php?p=642788). For what it's worth, the HB25 driver in the Object Exchange suggests a 1K resistor.
Mike
When you say 'fried' - in what way? - did you loose all functionality or some ?
Regards,
Quattro
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'Necessity is the mother of invention'
Post Edited (QuattroRS4) : 4/11/2007 2:50:25 AM GMT
ps. this is on super_bot not the dragon wagon
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
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Post Edited (Brian Beckius) : 4/11/2007 3:21:43 AM GMT
Don't know about any Bots - ? How are you powering the HB25 - what PSU/Battery ?
How are you supplying the Demo board ?
Sorry for asking loads of questions - just want to get the bigger picture here..
Regards,
Quattro
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'Necessity is the mother of invention'
I'm using a small 12 volt battery to power the HB25's and the proto board (paul said 12 volt would be ok) I found that when the battery get's down to 12 volts thats when I start having issues , so I switched batteries and it worked fine
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
http://www.diycalculator.com/subroutines.shtml· My favorite website ( Bet you can't guess why)
Quattro
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'Necessity is the mother of invention'
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Thank's Brian
www.truckwiz.com
·"Imagination is more important than knowledge..." ·· Albert Einstein
http://www.diycalculator.com/subroutines.shtml· My favorite website ( Bet you can't guess why)