A resource page for any prototyping being done:
- Early GUI prototype files: link
- Tutorial on using VB to connect to the robot: link
Comments:
Added a link to the .vb files that were used to generate the prototype images that were included in our design document. Warning: the program is not very functional and I did not follow any coding conventions (ie: it was definetely a hack job) but perhaps the layout or design may be a useful starting point. ~bpeake
Nice find! After reading it over I'm glad we chose VB for this =p Should be pretty easy once we nail the specifics with the robot team ~Dave F
Added a link to a website that has a couple tutorials on how to use VB to connect to an NXT machine (It includes a tutorial on setting up the serial port, getting information from the NXT and sending information to the NXT) ~bpeake
I'm still fooling around with direct commands, and I made some useful progress today:
Everything you see works except the "Backward" button. I think I know how to make it move backwards, but I'm having trouble implementing it. I have one byte that I set in the message that is related to speed. Its valid values are -100 to 100. For Left, Right, and Forward, I have that byte set to &H50, the hex for decimal 80. To move backwards, I think I simply need to change that to a negative value, but how do I write negative values in VB's hex code?
e.g.
Dim byteOut(15) As Byte
byteOut(5) = &H50
~DS
Woot! Forwards, backwards, this baby does it all.
Point of interest:
- &H50 = 80 = 01010000
- 2's complement of 01010000 = 10101111 + 1 = 10110000
- 10110000 = -80 in 2's complement
- 10110000 = &HB0
It's not the most impressive "active control" in the world, but it works.
~DS
I'm trying to make my prototype fit the coding conventions. I'll post a link to the .VB file when I'm done so that Brett can run it through Doxygen.
~DS
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