Booya, EIGHT! Just two more to double digits unless someone breaks my streak!
As suspected, treads suck consistency-wise. It took several tries and luck to get fairly close in this video. Every test run wears down the alkaline cells (which also suck) and it goes slower. Which means not as far with the simple timing commands used here.
I built up this Feetech 4WD chassis today. Reckon I'll "8" it without anyone interrupting my streak. I done lost track of how many 8's I have in a row. Have to page back sometime.
Laser Trike blazes my ninth "eight" in an uninterrupted row. One more and I'll make it into double digits while everyone's out Christmas shopping! Edit: Updated video
Still experimenting with speed, sampling and steering rates. The high pitched sound is the beeper toggling every time the sensor is sampled. Those ten-cent beepers are solid gold.
That chassis has cutouts for those specific 9g servo-sized motors. You need more of those? Didja borrow those for another project, blow 'em up, or you just wanna hotrod the chassis with different motors?
Edit: Or you could get in on my next Feetech order from China and get some bolt-in 9G digital CR servos... I'm sure our pal Gordon wants some too.
You would think your servo/gearbox would be listed there somewhere but it ain't.
I email their customer service directly and it takes a few replies and iterations and translations to place an affordable order. Shipping adds up very quickly.
Here is my humble attempt at a walking figure eight. It is made from Minds-i parts, uses a Propeller Activity board and is programmed in Blocklyprop. Notice the red line on the floor to see the calibration of the figure eight. HEE HEE I DID IT! The Blocklyprop code is attached. You can all tell me how to make it better as I am getting my feet wet with it. Love it too. A lot of fun to use.
Can't let Carol have all the fun! My new trike bot takes a shakedown cruise. Surprisingly accurate & consistent, even using alkaline batteries & simple timing commands.
Can't let Carol have all the fun! My new trike bot takes a shakedown cruise. Surprisingly accurate & consistent, even using alkaline batteries & simple timing commands.
Especially since there's no motor braking, or even reverse here. Just PWMing 50% (yes, faster is possible) through a DC motor using a mosfet, so I had to allow for power-off coasting down at the end.
I would like to introduce my robot call 'zBot' to the Parallax forum community. I have been working on it as a winter project for a few years. Last winter I started working on an auto-pilot. I needed a test environment and chose the "Figure 8 Challenge".
The robot I am developing is meant to operate in larger spaces (10 x 10 meters). It was never intended to be used to perform small accurate movements. For me it was an interesting software challenge to coax the auto-pilot to behave correctly at this scale. On my 'Still to Do' list I have now added the need for an "Auto-Pilot 2.0" that will do cursive writing.
Malcolm, I have been meaning to make a comment on your great little robot writers. I'm going to be following your progress, as your robot's graphical interface is very interesting. I wish my cursive was that smooth.
I can recursively write this "I can recursively write this "I can recursively write this "I can recursively write this "I can recursively write this "I can recursively write this "I can recursively write this "..." easily." easily." easily." easily." easily." easily." easily.
Comments
Hey guy's I budged him, we need to pester him a little, or he will put it on a back burner and turn down the heat.
As suspected, treads suck consistency-wise. It took several tries and luck to get fairly close in this video. Every test run wears down the alkaline cells (which also suck) and it goes slower. Which means not as far with the simple timing commands used here.
I gather your figure 8 is being done withoutthebenefit of odometers .
Jim
Still experimenting with speed, sampling and steering rates. The high pitched sound is the beeper toggling every time the sensor is sampled. Those ten-cent beepers are solid gold.
I need to get another pair of motors for that chassis you gave me. Any recommendations?
Edit: Or you could get in on my next Feetech order from China and get some bolt-in 9G digital CR servos... I'm sure our pal Gordon wants some too.
Thanks.
You would think your servo/gearbox would be listed there somewhere but it ain't.
I email their customer service directly and it takes a few replies and iterations and translations to place an affordable order. Shipping adds up very quickly.
New title - Erco, the 8th or erco VIII.
Good idea, I'll give it a shot.
.
Especially since there's no motor braking, or even reverse here. Just PWMing 50% (yes, faster is possible) through a DC motor using a mosfet, so I had to allow for power-off coasting down at the end.
Ramping the motor down? No time for that!
I would like to introduce my robot call 'zBot' to the Parallax forum community. I have been working on it as a winter project for a few years. Last winter I started working on an auto-pilot. I needed a test environment and chose the "Figure 8 Challenge".
The robot I am developing is meant to operate in larger spaces (10 x 10 meters). It was never intended to be used to perform small accurate movements. For me it was an interesting software challenge to coax the auto-pilot to behave correctly at this scale. On my 'Still to Do' list I have now added the need for an "Auto-Pilot 2.0" that will do cursive writing.
"
<B> ::= "I can recursively write this"
It looks like it has a different output to the algorithm I was hinting at above.
I might guess it would be:
<A> := "I can recursively write this \"<A>\" easily."
If we can introduce double quotes with escape sequence as shown.
Getting a little off topics guys. Let's see some robotic videos.