New with Basic stamp, is it possible to control DC motor?

Giray

Hello Everyone,

In order to indicate my knowledge, I just build my own beam and ball via basic stamp and ping))). My next goal is to stabilize a rod( at one end it is pivoted and at the other and actuated by propelled DC motor ) by using parallax accel. or gyro sensors. My questions are:

1) Is it possible to do all these by basic stamp
2) If it is, I would be happy to learn speed controller brand suitable to connect basic stamp.
3) My sistem will be weigh aroung 200-300 gram so, happy to hear appropriate micro DC motor sugestion

Thanks in advance for any comment and help


Giray

Mike Green

1) Yes. Really the main issue is the response time and complexity of the control loop. Each sensor that you add will take additional time to read. There are several Stamp models and some are faster than others. That may help.

2) Look at Pololu's on-line catalog. They make a variety of motor controllers that can easily controlled by a Stamp. Some even include their own PID controlller where the parameters would be set from the Stamp.

3) Maybe someone else would chime in with this.

Giray

Thank you very much Mr. Green for your quick response. It seems the Community is very dynamic and helpful. I will eagerly study the topic.

All the best,

Giray

erco

You're building an inverted pendulum, sort of a Segway-style balance bot. I have a long & winding thread at http://forums.parallax.com/showthread.php?126312-Balancing-Bot with lots of links to balance bots. I made a simple bot using a BS2, Sharp IR sensor, and continuous rotation servos. Details there and several videos. Here are a few:

http://www.youtube.com/watch?v=C2v-clzykS8&list=UUXRihcrTP6zOcVfd4WfBMqw&index=36&feature=plpp_video
http://www.youtube.com/watch?v=Lr0MkFb3da4&list=UUXRihcrTP6zOcVfd4WfBMqw&index=24&feature=plpp_video
http://www.youtube.com/watch?v=j-Ubi93VzHo&list=UUXRihcrTP6zOcVfd4WfBMqw&index=18&feature=plpp_video

Giray

@ Thanks for links and reply. Actually, I am trying to do is a rod with one degree of freedom hovers in the air. I want to correct any distubance when it is applied to system.

erco

Merhaba, Giray! Maybe you mean something like this: http://www.youtube.com/watch?v=TbLIdwO7Ud4

İyi şanslar!

erco

Giray

jesandian

I used DC motors to build my sumo bot for a competition in school. Do not try to build your own H-Bridge. Order one. It will make your life a lot easier.

John Board

Hi Giray,

Interesting question, just the other day I came up against exactly the same problemo. I am making a robot using Tamiya's (Probabbly wrong spelling...) DC motor gear box. As Mr. Green indecated, Polulo has a range of good motor drivers. I used one in perticular, and I have been quite happy with it, here is the link to it:

http://www.pololu.com/catalog/product/120

I just noticed on the website that these are getting discontinued because it is an old part. However, if I found a good part good, a new replacement part should be even better

-John

Giray

I would like to inform that I controlled Brushless dc motor with basic stamp. Signals that i send to change speed of the motor is same with the ones we send to servo(1us-2us). I used heli brushless dc motor, ESC, lipo battery and Basic Stamp.