Some Big Beautiful Treaded ATV Robots
For all the Wild Thumper fans here, watch the embedded video in the page below. Several nice big aluminum robot chasses are demonstrated, and controlled by Wifi via Android or PC. No iPhone support though. Looks like a complete kit incl batteries for $94, seems like a deal. Ball bearing wheels!
http://www.aliexpress.com/item/RC-Tank-Chassis-Crawler-Intelligent-Barrowload-Tractor-Obstacle-Caterpillar-Wall-e-Infrared-Ultrasonic-Patrol-diy-toy/1939534177.html?ws_ab_test=searchweb201556_1,searchweb201644_1_505_506_503_504_10020_502_10014_10001_10002_10017_10005_10006_10003_10021_10004_10022_10018_10019,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_-1&btsid=de96d3b3-261c-49fe-bac4-4fd566f5c06a
http://www.aliexpress.com/item/RC-Tank-Chassis-Crawler-Intelligent-Barrowload-Tractor-Obstacle-Caterpillar-Wall-e-Infrared-Ultrasonic-Patrol-diy-toy/1939534177.html?ws_ab_test=searchweb201556_1,searchweb201644_1_505_506_503_504_10020_502_10014_10001_10002_10017_10005_10006_10003_10021_10004_10022_10018_10019,searchweb201560_2,searchweb1451318400_-1,searchweb1451318411_-1&btsid=de96d3b3-261c-49fe-bac4-4fd566f5c06a
Comments
Maybe a bunny/groundhog chaser??
Awaiting purchase confirmations today from Duane, PhiPi, Andy, Dave D.
Might take a while but Whit & Martin will be tempted.
http://www.ebay.com/itm/NO-777-359-2-4GHz-Radio-Control-Bounce-Car-Jumping-Robot-RC-Toy-/121967016054?hash=item1c65ccf876:g:9qcAAOSwVllXHe2u
http://www.banggood.com/Syma-X5C-1-X5SC-X5SW-5_8G-FPV-720P-Camera-with-Monitor-Real-Time-Transmission-p-980090.html
That could almost make veggie gardening a sport!
Here's a video:
How can I possibly resist this one? It looks like much too much fun!
+1
http://www.ebay.com/itm/PEG-SJ88-2-4GHz-RC-Jumping-Car-Bounce-Car-Robot-Toys-Flexible-Wheels-Rotation-/121964330238?hash=item1c65a3fcfe:g:gjoAAOSwkEVXGchS
It's all fun and games until somebody's credit card gets hurt!
I did see that one Duane, that's a mini-me version for $5 less. Find me the full-size 777 - 359 for $20 and I'm down!
BTW, way to find that video in record time. Looks like big fun! JUMP on it!
I didn't notice it was a mini version.
SIR, HOW HIGH SIR?
Someday, someday!!!
Figure 8 challenge.....hey, look, over there, isn't that a Toddler??
Where? What? How much?
http://www.ebay.com/itm/Robot-Chassis-Track-Arduino-Tank-Chassis-Wali-w-Motor-Stainless-Stee-F17340/282017643571
I think I see motor encoder wires. But still don't expect precision dead reckoning from a treaded vehicle. So much scrub flies in the face of tracking consistency.
Just opened it up to see what it was...no tank play until chores are done.
The cut and anodization quality on the kit isn't too bad. It'll work.
The treads are nice and big, maybe two inches wide, individually pinned links. Mine are two different lengths. I assume between the two of them, there is enough tread material.
The rear wheel is in a slot so you can adjust tread tension a bit. The drive train is like WWI era tanks with the drive at the top of the tread. Not sure if that is good or bad at this scale.
The motors are nice and heavy. Not sure if there are encoders in the inboard end or not - I don't really want to take them apart.. There's a 6 pin wiring harness that connects to each motor. I'll get some close up pictures tonight or tomorrow.
That's about it for the kit: 3 body pieces, 2 motors, 2 wiring harnesses, 1 batter holder, a bag of hardware, treads and disks to build up the wheels with.
It should build up pretty quickly if I can get some time to sit down with it. (It's gardening weekend....it's NOT an optional activity)
See also:
$72 tread on me:
http://www.ebay.com/itm/Assembled-Tracked-Vehicle-Tank-Chassis-Crawler-Robot-Car-w-DC-Motor-for-Arduino-/262444308159
$111 get a grip: http://www.ebay.com/itm/Assembled-Tracked-Vehicle-Tank-Chassis-Crawler-Robot-Car-2DOF-Claw-for-Arduino-/252395119115
With 6 wires, the motors probably have encoders.
I've seen several motors with six wires like these sold by Parallax.
The six wires on the above linked motor are:
Red & Black - Motor Power
Green - Encoder Ground
Blue - Encoder Vdd (Many encoders will work with either 5V or 3.3V).
Yellow & White - Channels A & B output. If you're power the encoders with 5V, you'll want at least a 3.3K series resistor between the encoders and the Propeller I/O pins. You don't need resistors if you're powering the encoders with 3.3V.
Some encoders require the signal lines (A & B ) to be pulled high.
If you're motor/encoder wires aren't the same colors as those listed above, you can probably figure out which wire does what with a bit of testing with a multimeter.
Parallax's DHB-10 would likely be a good control board/h-bridge for your bot.
Edit:
I found this image on the product page:
Here's my guess on the connections:
The two wires on the left are power to the motor.
The two center wires are power to the encoder. It looks like the ground wire is on the right but I'm not positive.
The two wires on the right are the encoder output.
It looks like they're using yellow and white wires for the encoder power. The green and orange wires look to be the signal lines.
Yet the "Shipping List" claims to include a NodeMCU & battery box (and battery?):
Shipping List
Chassis:1 pcs
Driving wheels: 2 pcs
Bearing wheels: 10 pcs
Track:2 pcs (can be changed the length)
DC motor: 2 pcs
LED light: 2 pcs
NodeMCU development kit: 1 set
Screws:several
Screw tools: 3 pcs
18650 battery box: 1pcs (Note including the battery)
Or is that NOT including the battery? What a difference an E makes...