 | | OptoIsolators
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| Regarding the serial port isolator (opto-isolators are good for this) you might see if www.blackbox.com has something along those lines. You could also look up parts similar to the 4N33 to see if you could use something like that in a design. Not (...) (27 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
| | | | | Using 12V supply with Exp Board (2nd posting)
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| Hi all, This is a second posting of the question I posted up several days ago. So I apologize in advance for any inconvenience if you've already got my first posting. Anyways, I am currently using the 9.6V supply voltage on the HB and hoping to step (...) (27 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
| | | | | Computer Serial Port Optoisolator
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| This is somewhat off subject, but I am looking for a circuit schematic that will show how to build a serial port optoisolator for my computer. The problem I am having is that once in a while I wire a circuit wrong and end up putting 115V onto the (...) (27 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
| | | | | Re: OVER 1 AMP
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| Dear Paul, I have an H-bridge that I designed to run big motors. It runs at two amps continuous, and three amps intermittantly. It uses 5 volts for logic from your Handyboard, and 12 volts from a gel cell to run the motors. It also has an analog (...) (27 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
| | | | | Re: OVER 1 AMP
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| (...) www.yahoo.com, search for "H Bridge", trust me, lots of hits will comeup. Look for the 4QD pages, they talk a lot about H Bridge designs. If you aren't comfortable with electronic design, don't bother though... (...) This IS an H Bridge. Its a (...) (27 years ago, 23-Sep-99, to lugnet.robotics.handyboard)
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