arduino cd rom brushless motor as rotary encoder

Short video demonstrating the usage of a cd rom brushless (bldc) motor as a rotary encoder. This is the motor that spins the disk. The hall effect sensors in the motor are read and thus rotation direction is read. The forum thread is here: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1219763383

Category:

Science & Technology

Tags:

• arduino;
• bldc;
• brushless;
• motor;
• rotary;
• encoder

[mashersmasher]

women with electronics are hot!

[S00rabh]

You have beautiful hands..

How many connectors are there on CD rom motor???

[Kurchec]

293D

[alejandroez85]

293D? or pic?

[typodaemon]

@bradder555 Sure looks like a rotary encoder to me. The LEDs are indicating direction, not gray code.

[halotechy]

@Porcupinespecial Arduino

[Porcupinespecial]

WHAT DO YOU CALLED THE BOARD CONNECTED WITH 2 LED LIGHTS?

[bradder555]

thats not quiet a rotary encoder because there appears to be no overlap in signals, if you have two LED's which are on at the same time, then LED 1 = NOT-LED 2, thus it doesn't really give you any information, thus you can only tell if it is moving not in what direction IE consider the signal clockwise 12121212 and anti clockwise 2121212 however drop the first signal and you can't tell. I like it tho, but you do need some sort of overlap

[rodstartube]

those are porn hands