Comments on: Sunday wifi RC car extra

By: andrew

andrew — Sat, 21 Apr 2007 08:53:19 +0000

dioxide: right, except that at the low frequency they are using, they’re not doing a whole lot. the current surges at each pulse stresses the whole works and the pulsing ultimately yields no real torque benefit. as rush said, definitely needs improvement.

By: bolo

bolo — Mon, 16 Apr 2007 22:42:29 +0000

Well, I did this a few years ago… But, it’s in pieces… bolobot.bolobot.com

By: dioxide

dioxide — Mon, 16 Apr 2007 22:28:01 +0000

rush, pulsing lets you get full torque at any ‘rpm.’ although their pulses need to be a lot higher frequency, theres good reason to pulse the motor in all electric rc cars.

thats why they all do.

By: RusH

RusH — Mon, 16 Apr 2007 22:02:31 +0000

that wi-drive is a crap, makers should look into real speed control instead of pulsing moron = car shakes like my balls

Journey Robot is awesome, movies are great, this thing can manage some great stunts, I especially liked getting unstuck, btw what is on the wooden stick on top of that bot? digital compass?

By: strider_mt2k

strider_mt2k — Mon, 16 Apr 2007 19:35:21 +0000

One of the reasons I mothballed my homebrew 'Probe II SG' ROV project was how obsolete my RC and video systems are.
Pfft, I didn't get as far as systems telemetry!

(you can google 'probe II sg' for details if you're interested.)

I would like nothing better than to do a conversion whereby a small laptop handles everything and it utilizes a WiFi connection.

Someday perhaps.
At least the platform itself it built and proven, I just have to retrofit stuff onto/into it.

By: SonicvanaJr

SonicvanaJr — Mon, 16 Apr 2007 13:32:11 +0000

I like how everyone just reads slashdot, and takes its word as if it were law. As the first guy said, the exploit is very old. Sure there may be some people who still haven’t updated, but the vast majority of Linux users have a version that is patched.

Anyway… cool list of hacks.

By: thenameisbam

thenameisbam — Mon, 16 Apr 2007 12:52:06 +0000

those are some good ones to look at, but i've been a fan of http://hackedgadgets.com/2006/08/18/home-made-video-car/ now if you could combine wifi and the video then that would be cool!

By: bird603568

bird603568 — Mon, 16 Apr 2007 08:45:31 +0000

hate to break it to you but this exploit has been on milw0rm since march 1st and was written on jan 10th. this has been known for a while and has been fixed as of 0.9.3 which was march 16th