 | | Re: Arithmatic operation
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if you are not trying to divide numbers of great precision(many significant figures), then you can try multiplying by some order of 10, performing your division, then dividing by that same order of 10. i have used this before, but not for the same (...) (26 years ago, 22-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Arithmatic operation
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(...) I've asked for help with the floating point bugs in IC before, and nobody seems to care. Unfortunately, I've come to not use IC floating point variables at all, since I can't trust them. It's all very frustrating since none of the IC versions (...) (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Using 30VDC to drive motors
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Dave As far as connecting the grounds, that just means that the HB and the motors must share a common ground. The H-bridges need to reference the direction and PWM signal to ground and if that ground reference is not the same as the HB's the motors (...) (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | RE: New user - printf question/problem
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I'm still not sure what caused the problem, but a new bootstrap/reinstall of the pcode seems to have fixed the problem. I can now successfully use the printf function. Odd though, that that was the only command that wasn't working correctly. Todd (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | unsubscribe
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(26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | New user - printf question/problem
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Okay, this may seem silly, but I've got a very basic question. Just received a new handyboard (assembled, ready to go from Gleason). After charging it up, installing the pcode and booting all works fine. The 'Interactive C' text shows on the screen. (...) (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | Using 30VDC to drive motors
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Hello, I have finished building Matt Harlan's H-Bridge circuit (from the Handyboard FAQ) and I have come across the following instructions: "Make sure the supply ground for the 18200's is connected to the HB ground. You'll get some very strange (...) (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | Re: motor port problem
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(...) to make the connector more physically and electrically stable. (...) of course, only 2 connections are needed to make a ckt. (...) you should figure up to several amps of current flow. (...) it should work fine. good luck. fred (...) (26 years ago, 21-Nov-98, to lugnet.robotics.handyboard)
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| | Re: LEGO: looking for gears
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(...) Call 1-800-453-4652 for a Lego Shop-At-Home catalog. They have an assortment called #5229 Gears & Differentials for $4.50, that has all but the huge 40-tooth gears. Shipping is free. If you need the 40-tooth gears, you can get four of them (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Re: motor port problem .
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Philip In a message dated 98-11-19 21:05:04 EST, you write: << hi, I have a big problem. I followed the method of yours that just lift up pin 8 of one L293 and wirewrapped it. The positive supply is wirewrapped to pin 8 . How about the negative (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Sharp IS1U60 availablity
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Check B. G. Micro 800-276-2206 www.bgmicro.com I would not be too concerned with the actual part number, just look for an Infared sensor or remote control sensor. Also get the pin outs as these may be different. Also have you considered using fewer (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | serial communication
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Hi, Does anyone know the what is the most suitable port settings to use ? The Bits per second, number of data bits and stop bits, parity bit and the flow control type. Thanks for helping... (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Compling *.ICB files
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Hello, Does anyone have any tips on compling *.ICB files on Windows NT? I have IC 3.2. Using the as11_ic.bat file works with much modifications to the the *.asm files. The web based complier at Newton Labs compiles the code, but loading the ICB file (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | arithmatic operation(more)
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Hi all; I have also reckon that following numbers are also giving 2 in answer if divided by same numbers. 5.1,6.1,7.1,4.6,5.6,....4,1.92.3, 2.8,3.3,3.8,8.2,8.7,...10.2,10.7, thanks javaid iqbal (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Arithmatic operation
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Hi all, I am dividing 4.1 by 4.1 in following manner and getting answer 2. instead of 1. Dividing 4.2 by 4.2 give 1 result, dividing 4.6 by 4.6 again give 2. Except 4.1 and 4.6 rest all numbers give 1 result. I am using IC 3.2. Any help in this (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Re: motor port problem
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hi Fred, Why there is 2 holes each for the positive and negative supply on the pin jack (J13)? I thought that just insert one hole each for the positive and negative supply only. I need to know why the J13 is designed for 1x4 holes before i decide (...) (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | robots
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I WANT TO BE ON THE LIST. (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Re: Sharp IS1U60 availablity
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(...) How about a replacement of the IS1U60, which you can find in JAMECO Part No. 106382 or Part No. 131908 Though a little bit expensive. joema (26 years ago, 20-Nov-98, to lugnet.robotics.handyboard)
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| | Sharp IS1U60 availablity
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I'm looking to purchase about 12-15 IS1U60s to use as optical bump sensors and I'm having trouble finding someone that has them in stock and doesn't want $5.50 for them. Sterling Electronics, 781-938-6200, sells the part for around $1.75, with a $25 (...) (26 years ago, 19-Nov-98, to lugnet.robotics.handyboard)
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| | Analog Expansion Header On Handy
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Hi, I knew that the analog expansion header in connected to the PE0 to PE3. How should I call the analog command ? For example, if ( digital (11) ==1 ) ......... or if (analog (3) ==1 ) ......... Hence, how should I use to apply into writing a (...) (26 years ago, 19-Nov-98, to lugnet.robotics.handyboard)
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