 | | Re: Handyboard assembly problem fixed
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Dear Fred: No, we went through the assembly following your directions step by step. By the statement " Board OK", I meant that the tests upto the point of downloading pcode (second time with LCD in) tested OK. I did not want to bore the audience (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Handyboard Kits
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Dear Ram, I have not run into the exact problem which you describe, but I have some ideas which may be beneficial anyway. The first thing I would check is to make sure all the RAM pins are soldered properly. Since DL downloads the code without (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Handyboard assembly
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Ah, the classic "I built it and it doesn't work" story. Did you follow the incremental building instructions? I take it the answer is no. My suggestion is to pull all of the chips, and run through the series of incremental tests in the building (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Serial Com. in IC
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yes, it is possible for an ic program to use the serial port. see randy's instructions at (URL) this question was answered and archived in Handy Board e-mail archive. It would be good if people try a quick search through there before posting to the (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Serial Com. in IC
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Hello folks, I have a group of students involved in an application where a PC needs to send commands to a handy board at certain instants and receive feedback from the handy board. The handy board is involved in motor control according to the (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Handyboard assembly
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We have assembled our fifth handyboard and have run into the following problem. (The other four boards went smoothly). The command dl pcode_hb.s19 downloads fine just as it did on the four other boards that we have built. However, when I power cycle (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Handyboard assembly
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We have assembled our fifth handyboard and have run into the following problem. (The other four boards went smoothly). The command dl pcode_hb.s19 downloads fine just as it did on the four other boards that we have built. However, when I power cycle (...) (29 years ago, 7-Mar-96, to lugnet.robotics.handyboard)
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| | Response to Fred's note..
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This is a short response to Fred's message. There have indeed been problems in the past, this is one of the reasons why I am quiting as soon as I am out of debt. Any way, if you are worried about not getting stuff, you are protected if you use a CC. (...) (29 years ago, 6-Mar-96, to lugnet.robotics.handyboard)
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| | Re: Yellow Leds & Battery
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(...) Sorry to have disturbed so many people but i finaly found the solution: my adapter war rated 1000 mA ..... and so it never give a voltage over 13 ... I got one supposed to be less powerfull (500 mA) and it just work fine!!! (...) What I meant (...) (29 years ago, 6-Mar-96, to lugnet.robotics.handyboard)
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| | 7.2 volt battery
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I was wondering if using a 7.2 volt battery instead of the recommended 9.6 volt battery would require and HB modifications? A 7.2 volt pack rated at 1200 ma.hours can be bought for the same price as a 9.6 volt pack rated at 600 ma.hours. Shouldn't (...) (29 years ago, 5-Mar-96, to lugnet.robotics.handyboard)
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