 | | expansion board - servo control
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Hi, I stopped working with the handyboard for a while but just started back up again. I put the expansion board onto my handyboard and began testing it. After testing the general tests done before with just the handyboard I started testing the servo (...) (26 years ago, 21-Dec-98, to lugnet.robotics.handyboard)
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| | unable to download P_code
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Hi everybody, When the one end of the RJ11 cable plug into the RJ12 side entry(J10), it supposed the red LED on the charger board will light up. However, it failed to light up. Hence, this made the booststrap failed and I unable to download the (...) (26 years ago, 21-Dec-98, to lugnet.robotics.handyboard)
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| | FW: change of address
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-----Original Message----- From: Jaron Paludanus [mailto:j.paludanus@....a2000.nl] Sent: donderdag 17 december 1998 23:58 To: Fred G Martin Subject: change of address I'm not sure my previous mail came through but I have gone high-speed by cable (...) (26 years ago, 21-Dec-98, to lugnet.robotics.handyboard)
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| | Unable to download P_code
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Hi everybody, When the one end of the RJ11 cable plug into the RJ12 side entry(J10), it supposed the red LED on the charger board will light up. However, it failed to light up. Hence, this made the booststrap failed and I unable to download the (...) (26 years ago, 21-Dec-98, to lugnet.robotics.handyboard)
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| | Help Needed -Reply
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You don't need to put that code into eeprom. Just put the code inside a main() function block like this: void main(void) { YOUR CODE } Be sure and include the start button logic at the start of your code. The handyboard with start and automaticly (...) (26 years ago, 21-Dec-98, to lugnet.robotics.handyboard)
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| | I need a poloroid sonar board pinout.
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I got a hold of a Poloroid OneStep Sonar camera at the second hand store, but it does not seem to match any of the pinouts I've seen on the Web... I've aready seen the pinout at WIRZ, but it is not the same. this board has 16 pins all at the edge of (...) (26 years ago, 20-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Help Needed
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Ever tried making a main() function? I don't have a handyboard yet, but I think it runs without the connection... See you, Cesar (26 years ago, 20-Dec-98, to lugnet.robotics.handyboard)
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| | Help Needed
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Hi I have an IC program (c text format), and I want to download this program to the eeprom of the handyboard and run it without having connection with the host PC (remove the phone cable) and use the start button to run. How I can convert my c file (...) (26 years ago, 20-Dec-98, to lugnet.robotics.handyboard)
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| | Re: stepper motors from 5 1/4 drives
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Hi! (...) okay, another newbie reply :-) After I received this message I opened several 5 1/4 drives that were going to trash at my job and took all the stepper motors and integrated circuits. Here's what I figured out: 1 - All the stepper motors I (...) (26 years ago, 20-Dec-98, to lugnet.robotics.handyboard)
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| | Re: a/d range
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Hi friends! Thank you for the replies about this topic. Now I could get a Reference Manual too... The a/d range is determined by the references given to the VrefH and VrefL pins. But be careful about this: "There should be at least 2.5V between (...) (26 years ago, 20-Dec-98, to lugnet.robotics.handyboard)
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| | dc motor output control???...???
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hi everyone, i need some help on controling the output voltage of the dc motor ports. the output voltage is 9.6V and i like to know if there is any way to clamp down the voltage to 5V or lesser. i try using a enternal resistor but the output signal (...) (26 years ago, 19-Dec-98, to lugnet.robotics.handyboard)
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| | Re: LCD configs (was:Suppliers and rf link)
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john calhoun, Mine just arrived and they are 1 X 16 connectors. I ordered 2035TNLD/Y displays for $8.00 each. You might want to order now while they have the 2X16 displays with 1X16 connectors. I have soldered the connector on and tested it and its (...) (26 years ago, 19-Dec-98, to lugnet.robotics.handyboard)
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| | Re: dc motor output control
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Maybe you can put a series of diodes in series and in parallel but the other direction to reduce the voltage. H-bridge +- +- +- +- motor H-bridge -+ -+ -+ -+ Good luck, James (...) (26 years ago, 19-Dec-98, to lugnet.robotics.handyboard)
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| | RE: urgent request help !!!!
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What about the display board itself? Could it be that one of the SMT parts on the board is dead? Or a trace on the LCD is shorted? --phil (26 years ago, 19-Dec-98, to lugnet.robotics.handyboard)
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| | RE: urgent request help !!!!
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-----Original Message----- From: phillip chia [mailto:philchia@sin...et.com.sg] Sent: Friday, December 18, 1998 7:04 AM To: handybd Cc: Mr Peter Lim Subject: urgent request help !!!! Hi Fred and others, I very desperate to debug the problem that (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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| | dc motor output control
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hi everyone, i need some help on controling the output voltage of the dc motor ports. the output voltage is 9.6V and i like to know if there is any way to clamp down the voltage to 5V or lesser. i try using a enternal resistor but the output signal (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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| | Re: Downloader and a/d
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Cesar, (...) According to my book, you can set the reference voltages to anything from Vss to Vss + 6.0 V (notice that this is higher than Vdd). The A/D result is a ratioatic comparison for the sample voltage to the references. Page 48 of the (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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| | Replacing L293D with L298H
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Hi Fred and others, I very desperate to debug the problem that took place in my HD. When I download the P_code, it is successfully downloaded. However, when the next instruction ask to reset the board, no words of sentence appear on the LCD. Only 16 (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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| | Downloader and a/d
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Hi friends! First thank you a lot for the advices on the FingerBoard. It really gets near to what I need, but that ram chip is another headake. So I believe more in a "light" version of the Handyboard right now, later I'll make a specific version (...) (26 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
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| | Re: HD LCD problems
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(...) On a lark, I'll suggest that perhaps U6 is damaged. If you have another 74HC138 around, try swapping it for the one on your HB. I had a "similar" problem (although not identical) and was able to diagnose the 74HC138 as the problem. I too was (...) (26 years ago, 17-Dec-98, to lugnet.robotics.handyboard)
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