 | | Re: Motors & handyboard
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To measure current with an multimeter or ammeter (volt/ohm/etc.. meter) you must break the circuit at some point and put the meter in series with the circuit thus gapping the break. ie) +-----(+) METER (-)------+ | | | | (+) | POWER | (-) | | | | | (...) (28 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Motors & handyboard
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Guys, I caught the mail on motors (3V etc.) and wasn't impressed. I just bought one of those Bulldozer Kits from Tamiya and I believe it contains 3V motors. Is there NO possible way of using these motors??? I did notice the HB motor driver chip (...) (28 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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| | Re: expansion board
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(...) I can vouch for this technique, this is basically what I do in my PIC program (except the randomness which is a nice touch BTW) and get rock solid detections. When the frequency is spot on to the center frequency (38Khz for the 1ISU60's) and (...) (28 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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Please unsubscribe me Matt Enser Director DLR Windows95 Lab email : menser@sbu.edu WEB: (URL) (28 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Automatic feeding.
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(...) One way that I did this was to steal an idea from the railroad world. (...) In my case I put a conductor (a wire) around the outside of my two drive wheels. At the top of the wheels was a 'brush' (which was a simple spring loaded contact) and (...) (28 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Motors & handyboard
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(...) EE Question: How do you use a multimeter to measure the current? I was told that you need a current probe to do this kind of thing. ?? (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Automatic feeding.
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(...) Here's an idea for you: For a mechanical system you could use two 'wiskers': one on top and one on the bottom of the 'bot. (Or one each side.) You set up the 'feeding pen' to be two parallel metal plates. Set them up so that the 'bot can roll (...) (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| | Re: Motors & handyboard
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(...) Unfortunately this is the LEAST amount of current the motor will draw when operating. You have measured the 'unloaded current'. Now, while you have your motor running, grab the shaft between your fingers and stop it, and measure that current. (...) (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| | LMD18200 Motor driver
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Is there a way to use the LMD18200 motor driver as a replacement for the motor chip on the handyboard? I know that they are not pin compatable but is there some type of interface that can be built easily? Thanks. Keith Keith Soldavin (...) (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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| | Automatic feeding.
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Has anyone worked up a system where a Hanyboard bot monitors it's battery level and then when it starts to get low it rolls over to a charging device and "plugs itself in"? It seems like this should be doable but I don't think I've seen any (...) (28 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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