buwi
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« on: November 13, 2008, 05:32:04 AM » |
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Tanong lang po, Meron po ba dito may idea kung paano magagawang two-speed yung mobot?  and ano po kaya yung chance na hindi masundan ng mobot yung line if napunta sa palikong direction at a greater speed Salamat sa mga sasagot.  |
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« on: November 13, 2008, 05:32:04 AM » |
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rdpzycho
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« Reply #1 on: November 13, 2008, 06:48:44 AM » |
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mago-overshoot 'yun sa pagliko dahil feedback ang system. kung na-detect mo nang nawawala na sa track pwede mong bagalan 'yung speed.
by PWM pwedeng gawing variable ang speed.
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beginner wan
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« Reply #2 on: November 13, 2008, 09:31:32 PM » |
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mArKhAo
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« Reply #3 on: November 13, 2008, 09:51:45 PM » |
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3 sensor pair lng ba ginamit mo? |
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buwi
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« Reply #4 on: November 13, 2008, 10:03:15 PM » |
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well, actually po di ko pa nasisimulan yung project, naghahanap pa lang po ako ng mga ideas na magmamaximize ng effeciency ng mobot. Salamat po sa replies...update ko na lang po kayo tungkol sa mga gagawin ko.  |
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mArKhAo
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« Reply #5 on: November 13, 2008, 10:05:01 PM » |
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hmmm... update mo din ito. gumagawa din kasi ako nito ngaun |
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« Reply #6 on: November 13, 2008, 10:37:36 PM » |
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3 sensor pair lng ba ginamit mo? yes boss.. bkit? |
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Black Bird
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« Reply #7 on: November 13, 2008, 10:50:11 PM » |
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nakakadetect na ang mobot namin. okay nmn ang forward speed nya.. ang problema, kapag liliko na, minsan hindi na umaandar. kumbaga hindi kaya nung isang motor na lumiko pabalik.. panu kaya reremejohan yun? |
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mArKhAo
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« Reply #8 on: November 13, 2008, 10:50:43 PM » |
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hehe, akala q madami e... ung code boss ah, kahit pseudo code lng |
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beginner wan
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« Reply #9 on: November 13, 2008, 10:56:35 PM » |
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^subukan ko bukas boss..
^^hindi lumiliko? bakit? differential ba yung pag liko nya?
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rdpzycho
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« Reply #10 on: November 13, 2008, 11:04:54 PM » |
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kung differential drive, basta may difference sa speed dapat liliko na. kung differential at misaligned sa aixs 'yung dalawang gulong, mahirap talagang lumiko.
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mArKhAo
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« Reply #11 on: November 13, 2008, 11:09:03 PM » |
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baka ung supply kasi baka mahina na ung supply kung RC car... hnd na kaya supplyan.. hehe |
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underprezzure
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« Reply #12 on: November 13, 2008, 11:29:50 PM » |
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nakakadetect na ang mobot namin. okay nmn ang forward speed nya.. ang problema, kapag liliko na, minsan hindi na umaandar. kumbaga hindi kaya nung isang motor na lumiko pabalik.. panu kaya reremejohan yun?
Kulang ang current drive mo. as simple as that. The h-bridge isn't sinking/sourcing an appropriate current. Na-experience ko rin yan dati pa... use PWM on both drive and steering motor para di ka maubusan ng supply ng boltahe at kuryente. -underpazz campaigns for more technical post on technical threads -underpazz campaigns for " no hijack policy" on technical sections |
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« Reply #13 on: November 13, 2008, 11:44:09 PM » |
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Kulang ang current drive mo. as simple as that. The h-bridge isn't sinking/sourcing an appropriate current. Na-experience ko rin yan dati pa... use PWM on both drive and steering motor para di ka maubusan ng supply ng boltahe at kuryente.
-underpazz campaigns for more technical post on technical threads
-underpazz campaigns for "no hijack policy" on technical sections
pano po ba yung pwm? delay lang po kasi gamit nmin.. |
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maldihtah13
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« Reply #14 on: November 14, 2008, 08:46:11 AM » |
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post ka picture dito
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paranz
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« Reply #15 on: November 14, 2008, 09:42:37 AM » |
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pwede naman more than 2 yung speed setting.
For example, if yung mobot ay nasa center ng black line, pwede ito tumakbo at a high speed. Kung nasa gilid, it can run at a slower speed. If nag-overshoot sa line, it can run at a much slower speed and if matagal bago nakabalik sa line, it can run at the slowest speed possible. There are 4 speed settings
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tony v.
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« Reply #16 on: November 14, 2008, 10:12:11 AM » |
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pano po ba yung pwm? delay lang po kasi gamit nmin..
gamit ka ng mosfet as a switch to the dc motor tapos lagyan mo ng pulse sa gate to control the speed... |
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paranz
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« Reply #17 on: November 14, 2008, 10:34:21 AM » |
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pano po ba yung pwm? delay lang po kasi gamit nmin..
first you need an hbridge with pwm input para mas madali Here is a sample circuit  yung PWM input, i-connect mo to any GPIO output pin if you are using software-controlled PWM. The duty cycle of the PWM signal will control the speed of the motor. Or you can connect the PWM input to the timer output pin of the microcontroller if you are using a mcu with pwm-equipped timer |
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frozice2006
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« Reply #18 on: November 08, 2010, 05:15:27 PM » |
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mga sir baka pwede po mgpatulong sa inyo how to generate a PWM code using C po.
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August 17, 2011, 04:45:05 PM
Wifi dongle speed max speed ilan ba talaga kaya?
