Ask Your Question
0

what hardware should I use for wheel encoders.

asked 2013-01-13 13:28:22 -0500

packrat gravatar image

I am building a differential drive robot from an old powered wheelchair. The wheels are attached to the motor by a ~10:1 gearbox. I would like to add encoders to the motors. what kind of encoders should I use. I am running a full PC onboard. I have a chip kit max32 that I could use as an interface. What is the best way to add encoders. Is there a useful usb interface? What kind resolution should I look at. The motor drivers I am using do not have encoder feedback. Thanks for any feedback.

edit retag flag offensive close merge delete

Comments

At full power the robot can move about town miles an hour. Is it typical to use a dedicated device just to read the encoders? A device like"http://www.robotshop.com/phidgets-phidgetencoder-highspeed-usb-4-input-2.html"

packrat gravatar image packrat  ( 2013-01-13 22:37:14 -0500 )edit

My other question is, what hardware do you guys recommend. 200 CPR encoder connected to an arduino?

packrat gravatar image packrat  ( 2013-01-14 12:39:42 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted
0

answered 2013-01-13 17:14:56 -0500

Kent gravatar image

The encoder resolution depends on ur system demands,i.e, how fast do u want ur robot to go. If u need excellent low speed characteristics, it's better to have high resolution encoders. From the situation u've explained, I suggest u can use an ARM development board with high speed IOs to read the pulses outputted by the encoders, and communicate with ur PC via serial port like RS232.

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Question Tools

Stats

Asked: 2013-01-13 13:28:22 -0500

Seen: 517 times

Last updated: Jan 13 '13