Society of Robots - Robot Forum
Electronics => Electronics => Topic started by: blackbeard on May 19, 2011, 04:30:40 AM
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so i made this video yesterday about a rotary encoder i made and i think it's a very good yet simple design. essentially it' just a quad op amp chip and a hard drive motor and the device below is just made as a sort of example of what it does. it needs some tweaking but all in all it's actually very accurate at higher speeds. I haven't done a schematic yet but if people want one then i can slap one together.
Using Hard Drive Motor to Make Pretty LEDs Blink (aka rotory encoder with an op amp) (http://www.youtube.com/watch?v=ajmDEWDWzzM#ws)
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ok maybe it's not badass but it is pretty cool. i'm going to be doing some stuff with a microcontroller using this thing soon
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sure a schematic would be cool, so could i slap this on to the back end of a motor shaft and use it to get feedback to a motor controller as to motor position or speed, and could you briefly explain what are op amps, im a noob
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sure a schematic would be cool, so could i slap this on to the back end of a motor shaft and use it to get feedback to a motor controller as to motor position or speed, and could you briefly explain what are op amps, im a noob
Op-Amps (http://www.google.co.uk/#hl=en&xhr=t&q=op+amp&cp=5&pf=p&sclient=psy&source=hp&aq=0&aqi=&aql=&oq=op+am&pbx=1&bav=on.2,or.r_gc.r_pw.&fp=43680684d8e9a74d) or Operational Amplifiers are devices used to amplify voltage and current proportionally to its input. There are many tutorials (http://www.electronics-tutorials.ws/opamp/opamp_1.html) on them, so just google it, read some literature, do some simulation tests or prototyping.