 | | Both leds red and green on ?
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Hi , when I run modified servos from the motor ports both leds light in fwd and in rev at the same time either when the robot is moving fwd or reverse? How can I correct this? It works correctly with lego motors? Why not with the servo? Thanks (...) (24 years ago, 24-Jul-00, to lugnet.robotics.handyboard)
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| | IR Serial comms
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I have recently come across an interesting IC being sold by RS Electronics in the UK. It is an IR transceiver IC which effectively gets connected to a normal serial UART and then just acts as though there was a physical cable in place. The IC does (...) (24 years ago, 21-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Encoder routines
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I can offer some input on this, as I have used both the Rug Warrior approach and the Handy Board approach that you describe. As far as which method has an advantage over the other is probably a qualitative assessment that is application driven, and (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | Encoder routines
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I've looked at the shaft encoder routines and it seems to be getting the encoder voltage at certain times and using that to keep track of ticks. In the past I have used an input capture to keep track of ticks. Is there a certain advantage of one (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | GP2D02 - problems?
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Hi all, I used Gary Livicks routine in connection with the GP2D02 Sensor. When there is no obstacle in front of the sensor the LDC shows: "range is 77". Is that normal. Shouldn't the LCD display zero? If it is normal can you say me why? Thank you (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: Handboard exp.
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Hi, I believe an earlier post indicated that, since the analog inputs on the expansion board are multiplexed to the analog input 0 on the HB, if you cut the trace on analog port 0, the expansion board analog ports will all be "pull-up (...) (24 years ago, 20-Jul-00, to lugnet.robotics.handyboard)
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| | GP2D12 on expansion board
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Hi all, I am using three GP2D12 on the expansion board. When I connect them (after removing the analogue port 1 resistor and put the GP2D12 on port 24-26) I experience some weird problem. It seems the there is a short-circuit somewhere. I notice (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | short-circuit?
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Hi, This past few days, I notice my board uses up the battery very quickly (may be because I use servos). Then I notice that the voltage regulator at U13 heats up very quickly. I was wondering if I short-circuit somewhere. I didn't build the board, (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: What is a bobbin(sp)?
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(...) is it a cylinder (about the size of 2x2) with thin wall sides? (what a lego description!) then, it is an accessory for a sewing machine that holds the thread for the backstitch. older ones are metal; newer ones are plastic. later ~ craig~ (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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| | Re: What is a bobbin(sp)?
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Isn't a bobbin part of a sewing machine? I distinctly remember it being the thing underneath the needle that you needed to load with thread to make the whole thing work. Aha, a look at websters gives me the following definition: 5. (Elec.) A (...) (24 years ago, 19-Jul-00, to lugnet.robotics.handyboard)
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