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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 (...) (27 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
| | | | | 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 (...) (27 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
| | | | | 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 (...) (27 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
| | | | | 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 (...) (27 years ago, 18-Dec-98, to lugnet.robotics.handyboard)
| | | | | 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 (...) (27 years ago, 17-Dec-98, to lugnet.robotics.handyboard)
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