 | | Re: RCX IR protocol
|
|
(...) Take a look at (URL) (...) 55 ff 00 (...) complement, i.e. invert every bit separately. So for example ~f7=~11110111=00001000=10. (...) Good luck and show it to us when you are done Jürgen (24 years ago, 4-Sep-01, to lugnet.robotics.rcx)
|
| |
| | Re: RCX IR protocol
|
|
On the page (URL) look under the description of his send command and you'll see he sends a query "10" (hex) and gets a response "ef". This value, 0xEF, is the logical not (modulus 0xFF) of the query value 0x10. The tilde means "not". Dennis (...) (24 years ago, 3-Sep-01, to lugnet.robotics.rcx)
|
| |
| | RCX IR protocol
|
|
Hi all, I was looking at the IR protocol described at (URL) and i dont quite understand. In paricular: What is the packet header? what does the ~ mean? (eg "RCX reply opcode is always ~query opcode") I am asking because i am writing an application (...) (24 years ago, 2-Sep-01, to lugnet.robotics.rcx)
|
| |
| | Re: Non Robot uses of the RCX
|
|
Hello, Sounds like it was an interesting project. Could you tell me what grade was your daughter in and did she use the standard RCX/Lego Software or something else? thanks (24 years ago, 1-Sep-01, to lugnet.robotics.rcx)
|
| |
| | Re: ANN: Article on dead-reckoning with a Mindstorms robot
|
|
(...) Jerry, Thanks. I'm glad you liked the article. When I wrote it, I was hoping that other robotics enthusiasts would be able to adapt some of my techniques to their own dead-reckoning problems. It's good to see folks taking an interest in the (...) (24 years ago, 31-Aug-01, to lugnet.robotics.rcx)
|
| |
| | Re: Non Robot uses of the RCX
|
|
My daughter's science fair project last year used an RCX and 3 light sensors to time a LEGO sled sliding down a metal ramp with a LEGO light on the opposite side of the ramp from each light sensor, she had a primitive break-beam sensor. She used the (...) (24 years ago, 1-Sep-01, to lugnet.robotics.rcx)
|
| |
| | Re: ANN: Article on dead-reckoning with a Mindstorms robot
|
|
(...) Gary, I enjoyed reading about the project. I liked the article with all of the links to interesting backup material. The results are ...impressive! I have two questions: The subject model does not have a long fore & aft axis. Staying in the (...) (24 years ago, 31-Aug-01, to lugnet.robotics.rcx)
|
| |
| | Re: Article on dead-reckoning with a Mindstorms robot
|
|
(...) Thanks for the kind words. The Connecticut Robotics Society (CRS) dead-reckoning contest has no special rules limiting the parts or technology used for the robot, except that it not rely on any kind of external navigation aids (such as (...) (24 years ago, 30-Aug-01, to lugnet.robotics.rcx)
|
| |
| | Re: Article on dead-reckoning with a Mindstorms robot
|
|
Loved your article, reminds me of the great stuff the Boulette Robotics club does. I was curious why you used differential steering instead of an adder/subtractor or synchro drive, were there some rule limitations on parts you could use? "G.W. (...) (24 years ago, 30-Aug-01, to lugnet.robotics.rcx)
|
| |
| | ANN: Article on dead-reckoning with a Mindstorms robot
|
|
I thought that those of you who are interested in using the Lego rotation sensors for dead-reckoning and navigation might find the following useful. This month's issue of the Seattle Robotics Society's "Encoder" includes an article I wrote about my (...) (24 years ago, 30-Aug-01, to lugnet.robotics.rcx)
|
