Alt-BEAM Archive

Message #09860



To: beam@sgiblab.sgi.com
From: "Phillip A. Ryals" phillip@ryals.com
Date: Mon, 7 Feb 2000 08:38:14 -0600
Subject: [alt-beam] Re: Motor specs


>How much do they cost?
>
>Dennison

I don't have it in front of me, but I think it was $14.95.



9861 Mon, 7 Feb 2000 18:43:27 +0200 [alt-beam] Re: 74HCI4 Microcore Question "Geoff Waters"



> To clarify, the LEDs don't cause the staturated state, they let you see
> it. This is a great way to learn about the microcore; if you start right
> away trying to drive a motor, you have too many things that can go
> wrong. If the motor doesn't move, you won't know if it's the microcore,
> the motor driver, the motor, or a loose wire. Using LEDs lets you play
> with the circuit and see exactly what is happening.

Hi- I noticed on the program Extreme Machines 'Incredible Robots' that Mark
Tilden had little surface mount LEDs that lit up when each motor fired, are
these connected in series with the motors or what? (Stryder 1.0)

PS: Know of ant free PCB design software i can dowload, is the Microcore
chip 74C14, 74HC14, 74HCT14, so many people have so many different versions.

Cheers
Andrew Waters

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