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  • mcmurphy686 commented on ossum's instructable Upcycle Brushless DC Motors From Printers7 months ago
    Upcycle Brushless DC Motors From Printers

    Hi ossum, thanks for reply me,i had tried with analogWrite but it didn´t works i did my own code to probe the pins, putting them in high or low when i push a keythe only pin that works with clock is pin 5, the others works fine ( start/stop, cw/ccw) i´m resisting to buy an arduino duemilanove and today going forward with my investigation i found a very interesting document about arduino one http://playground.arduino.cc/Main/TimerPWMCheatshe...i tried it but since i increase the frecuency, the rpm goes slower, so i think i must trie to slow down, becouse like as says in the document : Fast_PWM_frequency = (16 000 000) / (Prescale_factor*256);but the slower factor is 1, and goes worst than changing anythig, maybe i´m doing something wrongi´ll try another choice...

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    Hi ossum, thanks for reply me,i had tried with analogWrite but it didn´t works i did my own code to probe the pins, putting them in high or low when i push a keythe only pin that works with clock is pin 5, the others works fine ( start/stop, cw/ccw) i´m resisting to buy an arduino duemilanove and today going forward with my investigation i found a very interesting document about arduino one http://playground.arduino.cc/Main/TimerPWMCheatshe...i tried it but since i increase the frecuency, the rpm goes slower, so i think i must trie to slow down, becouse like as says in the document : Fast_PWM_frequency = (16 000 000) / (Prescale_factor*256);but the slower factor is 1, and goes worst than changing anythig, maybe i´m doing something wrongi´ll try another choices like call a friend, to try something with an osciloscopethanks

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  • mcmurphy686 commented on ossum's instructable Upcycle Brushless DC Motors From Printers7 months ago
    Upcycle Brushless DC Motors From Printers

    Hi, i found your proyect and really open me eyes in somethings, i´m trying to control a motor like this : http://www.ebay.es/itm/Konica-Minolta-Bizhub601-Mo...i can control the direction, start/ stop, but i was unnable to control speed, since i found your code, but i have a questionthis code is only usable in arduino duemilanove ?so i can read only it can change frecuenciesi´m triying in arduino uno, and don´t works, too many errors compilingi´ll try another ways to change tihs frecuencyanyway thaks for your instructable, really useful for me.

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