Let's Make Robots!

This is the remodled power house

This is an AGV or Autonoumous Ground Vehicle. I bought the RC car before even seeing that patrickmccabe was way ahead of me on designing and implementing an autonomous arduino controled vehicle :D. Anyway, so far I have removed the stock motor and fit in a Johnson 250 motor. All I had to do was grind off an annoying piece of plastic to fit in the new and some what longer motor. I am not sure what to do with the steering as it is a very rudementary control, it is either all the way left or all the way right and when it is not turning it centers for going straight. I think that I will leave it as is for simplicity's sake. More info is forth coming as I build this thing.





-UPDTATE- I noticed that the motor was skipping

so I hot glued it into the motor housing. It's going

slowly as I have been really busy recently but it

should speed up this week.



-UPDATE- (finally :P)

I finally got around to attatching leads to the steering motor and was able to hook it up to a SN754410NE motor driver. Wipped up some simple left/ right turning code and tried it all out. I am happy to say that It works beautifully. I ended up using the two cell lipo to power the motor itself as the arduino couldn't supply what I needed. More to come soon.




Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
ookid's picture

You can control brushless escs with a servo command but a brushless esc won't work with a brushed motor. Thats all I'm saying. Have a wonderful day :D

Korel's picture

Ah ok good to know, mine has 2 wires,so I imagine that it's a brushless,than esc should work with servo commands if I got it right.

Thanks for your time my friend and have a good day too :D

patrickmccabe's picture

2 wires = brushed.

wait, then cant we control brushless ESC's with servo commands in picaxe 

ookid's picture

Assuming that you have a regular motor with two wires, make sure that it is a brushed esc. The brushless escs cost much more and have three motor wires. Have fun, I know that i am having a great time building this.

Korel's picture

Great my friend,I will look forward to get some ESCs. I can imagine that I have to use the same servo commands for my picaxe 28x1. Good to know thanks and keep it up.  :D

ookid's picture

If you want to vary the speed of your motor an ESC is what you want. I takes commands like a servo and outputs a pwm pulse to the motor to vary its speed. Its what that little black thing is that is attached to my motor wires in the main photo :D Any way thats, in my opinion, the easiest way to control a motor.  They don't cost much ,only a few bucks as they became "old technology" when the brushless motor came into circulation.

Korel's picture

Hi,   I have a few of them too and still don't know what to do with steering,I was thinking of replacing the little motor with a servo but still have to fit it inside. Beside that I wish I could vary the speed because it's too fast and hard to fit and program a distance sensor. I'm still reading comments and new post.