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「單」晶片控制多組 PWMs - 160 views

作者: ykjiang (York) 看板: Robotics 標題: Re: 「單」晶片控制多組 PWMs 時間: Wed Dec 13 00:17:04 2006 ※ 引述《happosai (八方齋)》之銘言： > 其實用 FPPA 產生 PWM 訊號一點都不難,因為那一顆CPU就只負責 > 產生PWM訊號，講白一點都是死迴圈，真正 update PWM 是另外一顆 > 負責，所以程...

embedded motor pwm

started by York Jong on 28 May 07 8 follow-ups, last by York Jong on 28 May 07

電池驅動的馬達 - 38 views

作者: ykjiang (York) 看板: Robotics 標題: 電池驅動的馬達時間: Sun Dec 10 14:33:26 2006 既然聊到了以 PWM 控制馬達，就順便簡單整理一下常用來驅動機器人的馬達： ※直流馬達（DC Motors）就是靠直流驅動的馬達。不同大小的電壓可以控制轉速；不同的通電方向，可以決定轉向。通常直流馬達都是有刷的（brushed），會...

battery dc motor

started by York Jong on 28 May 07 no follow-up yet

RoboLogo - Teaching Children how to program Interactive Robots - 0 views

web.mit.edu/...robologo.html

grammar javacc logo mit robot

shared by York Jong on 09 Sep 07 - Cached

All of the procedures take a discrete ``gear'' to specify the speed. The reasons for this are two-fold; first, by limiting the power of the truck, we simplify the interface to children. Secondly, it allows use to calibrate the ``gears'' so that, for example, 10 seconds forward in first gear is the same distance as 10 seconds backward in first gear.
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The limitation of LOGO however is the lack of feedback from the environment. There is no way of expressing an event occuring in the outside world.
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Simple constructs in iLogo extend the original LOGO language with interactivity capabilities of reading sensors and transfering control to different parts of the program.
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These above rules handle all of the commands and expressions of the iLogo language except for the DoUnlessCommand. This command will execute a list of commands unless a boolean condition is met. If so, control is switched to a new list of commands for handling the exception condition.
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Each stage of the compiler is designed using the Visitor pattern described in the book Design Pattern by Eric Gamma, et al. This pattern allows tree traversers to be created as seperated objects, instead of doing all traversals as methods of the nodes of the tree
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We decided to use the JavaCC/JJTree tools created by Sun for generating a custom parser for our iLogo language written in Java.
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The language must have primitives which allow the user of the language to write programs which easily transfer control based upon outside stimuli, in this case sensors on the truck.
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An LM18293 push-pull motor driver connects the programmable counter array (PCA) of the 8051 to the truck's motors.
- York Jong on 09 Sep 07
  
  LM18293 is a DC motor driver.
  
  <div class="cArrow"> </div><div class="cContentInner">LM18293 is a DC motor driver.<br></div>
  
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We took the Berkeley Logo language design as our base and then added a primitive for reading sensor and an exception-based control structure.
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York Jong on 09 Sep 07

RoboLogo is a system that enables children to program interactive robots. Children can program a robotic truck that interacts with the environment without having to deal with low-level implementation details.

<div class="cArrow"> </div><div class="cContentInner"> RoboLogo is a system that enables children to program interactive robots. Children can program a robotic truck that interacts with the environment without having to deal with low-level implementation details.</div>

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ACTUATORS - SERVOS - 0 views

www.societyofrobots.com/actuators_servos.shtml

motor robot servo tutorial

shared by York Jong on 31 May 07 - Cached

York Jong on 31 May 07

Servos are DC motors with built in gearing and feedback control loop circuitry. And no motor drivers required!

<div class="cArrow"> </div><div class="cContentInner">Servos are DC motors with built in gearing and feedback control loop circuitry. And no motor drivers required!</div>

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Trossen Robotics Offers Pleo Preorder - 0 views

pleobot.com/...-robotics-offers-pleo-preorder

calebchung pleo robot toy

shared by York Jong on 12 Aug 07 - Cached

Pleo Technical Specs: Ugobe LifeOS 32 bit Atmel ARM 7 microprocessor - The main processor for Pleo 16 bit sub processor - The processor dedicated to the camera system (4) 8 bit processors that provide the low-level motor control for the servos (35) Sensors including a camera custom designed to fit into Pleo’s very compact body. (4) foot-switches to detect footfalls and being picked up - assists with spatial orientation. (12) capacitive touch sensors (4) legs, (4) feet, back, shoulder, head, chin (2) microphones for directional sound detection (14) “Force” sensors, one per servo, to recognize abuse through force feedback joints. Orientation/tilt sensor IR transceiver for bidirectional data communication with other Pleos. IR interrupter for detection of objects in Pleo’s mouth (14) motors. Standard low voltage DC motors (150) gears and clutches Rechargeable NiMH battery pack USB port with mini USB connector SD/MMC memory card slot
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Robotics, Mechatronics, and Artificial Intelligence - 0 views

books.google.com/books

book choice electronics robot toread

shared by York Jong on 09 Sep 07 - Cached

York Jong on 09 Sep 07

this book simplifies the process of finding basic circuits to perform simple tasks such as how to control a DC or step motor, and offers instruction on creating moving robotic parts such as an eye or an ear.

<div class="cArrow"> </div><div class="cContentInner">this book simplifies the process of finding basic circuits to perform simple tasks such as how to control a DC or step motor, and offers instruction on creating moving robotic parts such as an eye or an ear.</div>

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[Blog] Motor-controlling PWMs - 43 views

作者: ykjiang (York) 看板: Robotics 標題: [Blog] Motor-controlling PWMs 時間: Mon Dec 18 17:21:33 2006 Motor-controlling PWMs http://yukuan.blogspot.com/2006/12/motor-controlling-pwms.html 一個脈寬調變（Pulse-...