 | | Re: Batteries again
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in theory this can be a problem. in practice, as long as the nicads are occasionally allowed to fully discharge, they'll last for a good long time in fine condition. fred In your message you said: (...) es. (...) (24 years ago, 22-Sep-00, to lugnet.robotics.handyboard)
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| | Batteries again
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As Fred is recommending using nicads due to the constant trickle charge when connected to the mains adapter I have a question regarding the nicad batteries. If the batteries are trickle charged before they are fully discharged (usual practice I (...) (24 years ago, 22-Sep-00, to lugnet.robotics.handyboard)
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| | Re: Possible error in assembly guide.
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Are you getting a good ground???...??? If it works.. then hey! RS232 is +10 to -10 but there is room for slop! +7 to -7 will work too!!!!!!! It just won't drive a cable to the max length of the RS232 spec. Most of the time though people just don't (...) (24 years ago, 22-Sep-00, to lugnet.robotics.handyboard)
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| | Possible error in assembly guide.
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Near the end of the "interface/charger serial circuit" heading of the "Assembling The Handy Board" guide, it says measure the voltage of pin 6 of the MAX232, I did that and got -9.5 which is correct. Then I connected pin2 of j9 and pin6 of max232 so (...) (24 years ago, 22-Sep-00, to lugnet.robotics.handyboard)
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| | Re: nimh batteries
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the issue with nimh is that plain trickle charge is not appropriate. you must remove charge current when the cells are full charge. the HB charge circuit just doesn't do that. i'd really recommend switching back to nicad. fred In your message you (...) (24 years ago, 21-Sep-00, to lugnet.robotics.handyboard)
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| | Re: nimh batteries
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Would installing a diode (power diode, >3A ?) into the +ve line of the battery pack be suitable to prevent the power circuitry of the HB from trying to recharge the nimh cells ?. Or do I actually need to do anything at all ?, i.e. the nimh cells (...) (24 years ago, 21-Sep-00, to lugnet.robotics.handyboard)
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| | Spazbotlink
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OOPS sorry, I forgot to give the complete url It's nfn.no-ip.com/spazbot (24 years ago, 21-Sep-00, to lugnet.robotics.handyboard)
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| | Spazbot Homepage updated.. adding more!
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OK.. So now that my Explorer code has been perfected and I got more of the servo twitch out of Spazbot, I found time to update the web site! (URL) I registered with the Dynamic DNS nameserver, lets see how well it works. Just before my DHCP lease (...) (24 years ago, 21-Sep-00, to lugnet.robotics.handyboard)
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| | I need help! ! !
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Hi everyone, I'm studying C programing now, but I've had my handy board for more than a year now, I want to now if anyone has a small project, just a motor and some sensors, with all the code I have to put, and how to put the code in the IC program (...) (24 years ago, 19-Sep-00, to lugnet.robotics.handyboard)
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| | Re: nimh batteries
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Should I modify the hb circuit to disable the recharge circuitry if I am using nimh batteries or will the circuitry just not recharge the batteries ?, i.e. no damage to the cells by using them on an 'as-is' board. As an extra question to the list in (...) (24 years ago, 19-Sep-00, to lugnet.robotics.handyboard)
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