 | | 20 X 4 L.C.D Screen?
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I put in an e-mail yesterday about using a different L.C.D, I made a mistake and said it was a 20 X 8 I meant a 20 X 4. I thought that there was a way to use a 20 X8 L.C.D instead of a standard 16 X 2. My question is is this possible, I thought I (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | System time
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Hi, Have anyone developed a system time on the handy board ? Please advice me... Regards, James (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | RE: basic trigonometric functions on the handyboard..
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Wouldn't it be easier to just use the cosine function itself? x = cos y You know x, but you want to find y. Pick a y (maybe 45 deg) and calculate the x. Use successive approximation to determine y within a tolerance. Almost like calculating a (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | Re: Polaroid 6500 Sonar Problem
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I would also like to know about this. please respond. =) chen (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | Re: HB v1.2, IC v3.1 and ir functionality
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Thanx for the pointer. I got it working with some help from this list. Thanx again, Ed (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | basic trigonometric functions on the handyboard..
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Hi. We've been trying to build an algorithm which will allow our HB to travel between given points. We need to use the inverse cosine function (cos^-1), how can we do that? Is there a math library which contains this and other trig functions? (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | Interfacing HB with bus abaco.
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Do anyone of you have already used a strange bus called ABACO ? I'd like to know if someone of you met it anywhere. Thanks Stefano Falconetti (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | Fw: Rs422/485 to RS 232 interface
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---...--- (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | Rs422/485 to RS 232 interface
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Does anyone can suggest me where to find a simple scheme of an interface from Rs422/485 to RS 232 ? I know that a lot of them are on the web, but where exactly ? Thanks Stefano Falconetti (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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| | RE: Polaroid 6500 Sonar Problem
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Hi, On this page ((URL) says to install a .1uF capacitor at C7 on the sonar board. My team basically did everything you are talking about, plus install the cap, and everything seems to work fine for us... hope this helps, I'm not sure what the (...) (26 years ago, 9-Mar-99, to lugnet.robotics.handyboard)
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