 | | Both leds red and green on ?
|
|
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)
|
| |
| | IR Serial comms
|
|
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)
|
| |
| | Re: Encoder routines
|
|
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)
|
| |
| | Encoder routines
|
|
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)
|
| |
| | GP2D02 - problems?
|
|
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)
|
| |
| | Re: Handboard exp.
|
|
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)
|
| |
| | GP2D12 on expansion board
|
|
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)
|
| |
| | short-circuit?
|
|
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)
|
| |
| | Re: What is a bobbin(sp)?
|
|
(...) 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)
|
| |
| | Re: What is a bobbin(sp)?
|
|
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)
|
| |
| | RP: GP2D12 on port 28, 29, 30
|
|
Hi. Sorry if this is a repost. I don't think I was able to post this message last time. I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | RP: What is a bobbin(sp)?
|
|
Hi. Sorry if this is a repost. I don't think I was able to post this message last time. This is a silly question: What is a bobbin(sp)? I tried to find its function on-line or in textbooks, but I couldn't find much. A friend gave me a box filled (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | RP: GP2D12 on port 28, 29, 30
|
|
Hi. Sorry if this is a repost. I don't think I was able to post this message last time. I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | 470uF Capacitor (C3)
|
|
Just a quick question, how important to the poser supply of the HB is the 470uF axial electrolytic capacitor ?. I made the mistake of getting a 64V version thinking that this would be ok and as it is installed under the LCD the rather large cap that (...) (24 years ago, 18-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | GP2D12 on port 28, 29, 30
|
|
Hi, I am thinking about putting three GP2D12 sensors on port 28, 29, 30 (because I am not thinking about using Lego Sensor, and I really like other analogue ports with the 1K pull-up resistors). Has anyone done it? Or is it a bad idea to uses these (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | Cabling concerns
|
|
I am putting together a somewhat modular robot: The main controller and batteries are to be connected to peripheral motors (and controller) via cable-- around 5 feet distance. I'm looking for a connection cable that has enough pins for my data and (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | What is a bobbin(sp)?
|
|
This is a silly question: What is a bobbin(sp)? I tried to find its function on-line or in textbooks, but I couldn't find much. A friend gave me a box filled with robot parts, including these things call bobbin. What are they? -- Ray (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | PWM decoding
|
|
Has any body used the HB to decode the PWM signals from a radio control receiver ?. I'm not sure if it can be done (I haven't looked that deeply into it yet) but I am construction a six legged walker with the twelve servos being controlled by a (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | IR Sensor Hack
|
|
I wrote the following email to Mekatronix regarding the sensor hack to convert Sharp GP1U58X or Y sensors to IR range finder sensors. The pdf documentation currently on their website just shows how to solder onto a trace within the sensor to give an (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
| |
| | Handboard exp.
|
|
Hi I have a small problem, I want to connect three sharp gp2d12s to the expansion board and I know I cant cut traces 0,1 and the gp2d12s need the pullups removed to operate correctly. How do I use them on the expansion board? Any help would be (...) (24 years ago, 17-Jul-00, to lugnet.robotics.handyboard)
|
