Shaft Encoders
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I have recently dismantled an old mouse and cutted the two shaft optical
encoders, rewired the photodiodes thru a buffer transistor, and
now I have 160 conts/revolution encoders for less $10. BS2 Software is
very simple. Let me know if you want a copy.
ACJacques
ISHTIAQ AHMED wrote:
>
> Hi,
>
> I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> thesis project in control theory and need to find a way by which to measure
> the actual speed of the robot. I was hoping to use shaft encoders for this
> purpose and am wondering if anyone has attempted this before? If so, I would
> appreciate any comments or suggestions (in particular, the model number of an
> appropriate encoder would be valuable). Thanks in advance.
>
> Regards,
>
> Ishtiaq Ahmed
>
> ____________________________________________________________________
> Get free email and a permanent address at http://www.netaddress.com/?N=1
encoders, rewired the photodiodes thru a buffer transistor, and
now I have 160 conts/revolution encoders for less $10. BS2 Software is
very simple. Let me know if you want a copy.
ACJacques
ISHTIAQ AHMED wrote:
>
> Hi,
>
> I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> thesis project in control theory and need to find a way by which to measure
> the actual speed of the robot. I was hoping to use shaft encoders for this
> purpose and am wondering if anyone has attempted this before? If so, I would
> appreciate any comments or suggestions (in particular, the model number of an
> appropriate encoder would be valuable). Thanks in advance.
>
> Regards,
>
> Ishtiaq Ahmed
>
> ____________________________________________________________________
> Get free email and a permanent address at http://www.netaddress.com/?N=1
Comments
transistor to use the existing circuitry if you have time.
Thanks
Original Message
From: Bruce <bsnowde@i...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, February 06, 2001 12:57 PM
Subject: Re: [noparse][[/noparse]basicstamps] Shaft Encoders
> AC,
>
> I would be interested in a copy. I was just looking at a mouse, thinking
what
> could be done with it. Thanks
> Bruce Snowden
> bsnowde@i...
>
> AC Jacques wrote:
>
> > I have recently dismantled an old mouse and cutted the two shaft optical
> > encoders, rewired the photodiodes thru a buffer transistor, and
> > now I have 160 conts/revolution encoders for less $10. BS2 Software is
> > very simple. Let me know if you want a copy.
> > ACJacques
> >
> > P.S. Sorry for re-posting this, but date was very incorrect first time.
> >
> > ISHTIAQ AHMED wrote:
> > >
> > > Hi,
> > >
> > > I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of
a
> > > thesis project in control theory and need to find a way by which to
measure
> > > the actual speed of the robot. I was hoping to use shaft encoders for
this
> > > purpose and am wondering if anyone has attempted this before? If so,
I would
> > > appreciate any comments or suggestions (in particular, the model
number of an
> > > appropriate encoder would be valuable). Thanks in advance.
> > >
> > > Regards,
> > >
> > > Ishtiaq Ahmed
>
>
>
I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
thesis project in control theory and need to find a way by which to measure
the actual speed of the robot. I was hoping to use shaft encoders for this
purpose and am wondering if anyone has attempted this before? If so, I would
appreciate any comments or suggestions (in particular, the model number of an
appropriate encoder would be valuable). Thanks in advance.
Regards,
Ishtiaq Ahmed
____________________________________________________________________
Get free email and a permanent address at http://www.netaddress.com/?N=1
http://literature.agilent.com/litweb/pdf/5965-5887E.pdf
Or just go out to Agilent's web site and search for HEDS
9000 - you should be able to find the code wheels and
decoders, drivers, etc.
http://www.semiconductor.agilent.com/cgi-
bin/morpheus/home/home.jsp
Start by looking under "motion control" in the menu on
the right.
Regards,
Arlen Fletcher
--
"They that can give up essential liberty to obtain a
little temporary safety deserve neither liberty nor
safety." - Benjamin Franklin
> Hi,
>
> I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> thesis project in control theory and need to find a way by which to measure
> the actual speed of the robot. I was hoping to use shaft encoders for this
> purpose and am wondering if anyone has attempted this before? If so, I would
> appreciate any comments or suggestions (in particular, the model number of an
> appropriate encoder would be valuable). Thanks in advance.
>
> Regards,
>
> Ishtiaq Ahmed
>
> ____________________________________________________________________
> Get free email and a permanent address at http://www.netaddress.com/?N=1
>
>
>
I have used a shaft encoder in a couple of ways with a stamp.
To do it right at high speed with 500 counts per revolution required
a lot of support circuitry. There was some HP chip with 20 MHZ clock, etc.
For slow speeds, maybe you could do it in software by looking at the
two phases of the quadrature on two pins. Another way is to use what
is sold as a 16 position BCD or GREY coded switch and use lookup tables
in the stamp. (not for high speed or long life of the switch)
Dave
encoders, rewired the photodiodes thru a buffer transistor, and
now I have 160 conts/revolution encoders for less $10. BS2 Software is
very simple. Let me know if you want a copy.
ACJacques
P.S. Sorry for re-posting this, but date was very incorrect first time.
ISHTIAQ AHMED wrote:
>
> Hi,
>
> I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> thesis project in control theory and need to find a way by which to measure
> the actual speed of the robot. I was hoping to use shaft encoders for this
> purpose and am wondering if anyone has attempted this before? If so, I would
> appreciate any comments or suggestions (in particular, the model number of an
> appropriate encoder would be valuable). Thanks in advance.
>
> Regards,
>
> Ishtiaq Ahmed
I would be interested in both, how you rewired through a transistor, and
the BS2 code. I have been curious about this. Thanks
el-jefe@p...
Original Message
From: AC Jacques <acjacques@i...>
To: <basicstamps@yahoogroups.com>
Sent: Tuesday, February 06, 2001 8:34 AM
Subject: Re: [noparse][[/noparse]basicstamps] Shaft Encoders
> I have recently dismantled an old mouse and cutted the two shaft optical
> encoders, rewired the photodiodes thru a buffer transistor, and
> now I have 160 conts/revolution encoders for less $10. BS2 Software is
> very simple. Let me know if you want a copy.
> ACJacques
>
> P.S. Sorry for re-posting this, but date was very incorrect first time.
>
> ISHTIAQ AHMED wrote:
> >
> > Hi,
> >
> > I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> > thesis project in control theory and need to find a way by which to
measure
> > the actual speed of the robot. I was hoping to use shaft encoders for
this
> > purpose and am wondering if anyone has attempted this before? If so, I
would
> > appreciate any comments or suggestions (in particular, the model number
of an
> > appropriate encoder would be valuable). Thanks in advance.
> >
> > Regards,
> >
> > Ishtiaq Ahmed
>
>
>
I would be interested in a copy. I was just looking at a mouse, thinking what
could be done with it. Thanks
Bruce Snowden
bsnowde@i...
AC Jacques wrote:
> I have recently dismantled an old mouse and cutted the two shaft optical
> encoders, rewired the photodiodes thru a buffer transistor, and
> now I have 160 conts/revolution encoders for less $10. BS2 Software is
> very simple. Let me know if you want a copy.
> ACJacques
>
> P.S. Sorry for re-posting this, but date was very incorrect first time.
>
> ISHTIAQ AHMED wrote:
> >
> > Hi,
> >
> > I am using a Basic Stamp II aboard a Boe-Bot robot for the purposes of a
> > thesis project in control theory and need to find a way by which to measure
> > the actual speed of the robot. I was hoping to use shaft encoders for this
> > purpose and am wondering if anyone has attempted this before? If so, I
would
> > appreciate any comments or suggestions (in particular, the model number of
an
> > appropriate encoder would be valuable). Thanks in advance.
> >
> > Regards,
> >
> > Ishtiaq Ahmed