 | | Re: Relationship between voltage and analog()
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(...) The input voltage range is 0 to 5 v, and the output number range is 0 to 255. The relationship is linear, so 2.5v = 128 (for example) (...) to convert from the output # to the voltage, it would be 5v x (output # / 255) so 47 is about 0.92 (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | Relationship between voltage and analog()
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Hello! Would anybody please send me a mail letting me to know the relationship between the output of ananlog() function and the voltage ? For example, if my sensor works under the command "if (analog(0)>47) then ...." What would be the voltage ? Any (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | (no subject)
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(...) Yes, see the FAQ for a recently added section on the battery charging system. (...) Yes, this is a good idea if you are separately charging the HB's battery. As you correctly surmise, you don't want the two charging circuits contending with (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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| | cherupakha is down
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FTPs to cherupakha are temporarily out. I'm working on it. -F (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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Greetings! I have just built my first Handy-Board.. Works Great!! I can't decide if I will enjoy writing software or building expansions more, I guess I'll just have to do lots of both before I decide. Two questions. My 'bot has it's own 12 volt (...) (28 years ago, 1-Jun-96, to lugnet.robotics.handyboard)
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(28 years ago, 30-May-96, to lugnet.robotics.handyboard)
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| | Re: 15' max measurement
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(...) I just noticed that the Polaroid Specs say that the transducer pulse current is 2 A. 100mA idle. Since it was mentioned previously that the HB's VR is rated for 1 Amp, how would this affect the sonar? Perhaps whatever is left of the 1A (...) (28 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | missing source files
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Lyle, Make sure you get the pcode-2.81 tar file in the interactive-c directory on cherupakha. -Fred (...) (28 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | Interfacing PICs and Basic Stamps to Handy
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Since (I think) it is fairly easy to interface the HC11's SPI interface to a PIC/Basic Stamp I & II this is probably easier than creating a custom RS-232 interface. Has anyone done anything like this? Sean R. Cunningham (28 years ago, 28-May-96, to lugnet.robotics.handyboard)
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Greetings! I am currently porting ic version 2.860 to the Amiga. I have completed as11, dlm, and written a pre-processor in ANSI C for use with this. The problem I m now having is with ic (main) There are many files #included that did not come in (...) (28 years ago, 28-May-96, to lugnet.robotics.handyboard)
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| | Polaroid 6500
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Hi, I am trying to install the polaroid 6500. I use the schematics I found with the sonar.c file at this site. It doesn't work, I dont understand the Motor power connection why does it have 4 pins ? One motor only uses 3 pins ? I think the sonar (...) (28 years ago, 26-May-96, to lugnet.robotics.handyboard)
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| | Re: pcode, libraries for two servos
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(...) Randy, I'm having trouble making the TOC2 work with Pcode_hb, something trashes the output whether I disable IR-Xmit or not. Do I need a new Pcode in order to divert TOC2 to my own use? I'm treating OC2 the same as I treat OC3, but only OC3 (...) (28 years ago, 25-May-96, to lugnet.robotics.handyboard)
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| | Re: Fuse on motor power cables
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(...) All system power, incl. motor pwr, already runs through the existing polyswitch. They're not too fast, so I'm not sure if they'll save you. the motor chips do have over-current protection of their own, though it has been known to fail from (...) (28 years ago, 24-May-96, to lugnet.robotics.handyboard)
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| | Fuse on motor power cables
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My current robot platform is a hacked toy and does not have ideal motors. I am concerned about toasting my motor driver chips. Can I put a polyswitch fuse in series in the motor lines to protect against this? They don't seem to be polarity (...) (28 years ago, 24-May-96, to lugnet.robotics.handyboard)
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| | expansion board
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Hi all, I have not worked with the handy baord much yet but I also feel that it would be nice to have a few more digital i/o ports available. I guess that is short, sweet, and to the point. sherman@plains (28 years ago, 23-May-96, to lugnet.robotics.handyboard)
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| | Wish list, or expansion possibilities...
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Hi, I am new to the handyboard area, having spent most of my project time with 68705 series uP's and 80X51's (done hate me.). Just tossing out some possibilities and not trying to down-play any other ideas that have preceeded me.... An expansion (...) (28 years ago, 23-May-96, to lugnet.robotics.handyboard)
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| | Re: PC serial connection
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(...) COM 2 is used by the modem card. I don't even know tyhough how to make COM 2 point to the slot I want, which is my initial problem anyways ( I need a 25-pin slot for the serial connection). Sincerely, Yoni Garbourg << To succeed, Atificial (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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| | Re: Expansion interface status
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(...) You might want to note that the unexpanded HB is capable of driving a Polaroid sensor. The second motor chip is removed, and lines are plugged into different pins for the BINH and INIT signals, while the ECHO signal goes to the first digital (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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| | Re: Expansion interface status
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Another thought, how about a series of expander boards. I know this could get really ugly, but, maybe Fred, and the normal HB distributors build what they see are appropriate for their customers, and others build what is appropriate for their (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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| | PC serial connection
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Hi. I just got my hands on a new HB and I'm using a 100 MHZ DX PC. Hardware-wise, there's a perfect slot for the serial connection on my computer, which is not occupied. I hookes the serial connection to it and tried to download IC using COM port 4 (...) (28 years ago, 22-May-96, to lugnet.robotics.handyboard)
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