most likely not while operating. There might be a way just for the programming part though...
tyckihd <tycki@h...> wrote:Is it posible to power the BS2 from serial port while operating
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[noparse][[/noparse]Non-text portions of this message have been removed]
--- In basicstamps@yahoogroups.com, "tyckihd" <tycki@h...> wrote:
> Is it posible to power the BS2 from serial port while operating
No.
The serial port is a signal port and will only deliver about 10mA
maximum.
The spec for the parallel port is that if it delivers over 2.5mA at
over 2.5 volts, it is within spec. Laptops use a much lower power
output, typically just over 3 volts on the parallel port signals.
The Serial has more powre availble, but fewer pins. The +/- 14V
looks attractive, but the port will quickly drop voltage as you add
load.
The keyboard and mouse ports offer a lot of power if you are looking
for a power source.
The joystick port is the big winner here. Becareful, you can draw
amps and burn traces on the MB, then no joy.
The USB offers about 500mA max.
Also, you can add a power port to the PC and connect your 5 and 12 to
that for most projects. the average power supply is way
underutilized.
--- In basicstamps@yahoogroups.com, "tyckihd" <tycki@h...> wrote:
> Is it posible to power the BS2 from serial port while operating
No.
The serial port is a signal port and will only deliver about 10mA
maximum.
The spec for the parallel port is that if it delivers over 2.5mA at
over 2.5 volts, it is within spec. Laptops use a much lower power
output, typically just over 3 volts on the parallel port signals.
The Serial has more powre availble, but fewer pins. The +/- 14V
looks attractive, but the port will quickly drop voltage as you add
load.
The keyboard and mouse ports offer a lot of power if you are looking
for a power source.
The joystick port is the big winner here. Becareful, you can draw
amps and burn traces on the MB, then no joy.
The USB offers about 500mA max.
Also, you can add a power port to the PC and connect your 5 and 12 to
that for most projects. the average power supply is way
underutilized.
Maybe Al Willimas can post his link to that ?
Dave
Dave
To UNSUBSCRIBE, just send mail to: basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
I just talked to CH products about how much power I could get from the
GameCard 3 Automatic (old product I have in a machine). They said it'll
deliver whatever the ISA (its an ISA slot card) spec can deliver, without
damage to the card. Of course, this just means that the card won't melt if
you draw more than the motherboard can handle - the motherboard may turn
into a smoking heap of ash.
--- In basicstamps@yahoogroups.com, PatM <pmeloy@s...> wrote:
>
>
> >
Original Message
> > From: Dave Mucha [noparse][[/noparse]mailto:davemucha@j...]
> > Sent: May 2, 2004 8:50 AM
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] Re: Power to stamp
> >
> <Snip>
> > The joystick port is the big winner here. Becareful, you can draw
> > amps and burn traces on the MB, then no joy.
> </snip>
>
> I just talked to CH products about how much power I could get from
the
> GameCard 3 Automatic (old product I have in a machine). They said
it'll
> deliver whatever the ISA (its an ISA slot card) spec can deliver,
without
> damage to the card. Of course, this just means that the card won't
melt if
> you draw more than the motherboard can handle - the motherboard may
turn
> into a smoking heap of ash.
Yup !
If you try to source 20ma per output on a Stamp you may release some
of the magic smoke !
Archiver
Posts: 46,084
Comments
tyckihd <tycki@h...> wrote:Is it posible to power the BS2 from serial port while operating
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[noparse][[/noparse]Non-text portions of this message have been removed]
> Is it posible to power the BS2 from serial port while operating
No.
The serial port is a signal port and will only deliver about 10mA
maximum.
The spec for the parallel port is that if it delivers over 2.5mA at
over 2.5 volts, it is within spec. Laptops use a much lower power
output, typically just over 3 volts on the parallel port signals.
The Serial has more powre availble, but fewer pins. The +/- 14V
looks attractive, but the port will quickly drop voltage as you add
load.
The keyboard and mouse ports offer a lot of power if you are looking
for a power source.
The joystick port is the big winner here. Becareful, you can draw
amps and burn traces on the MB, then no joy.
The USB offers about 500mA max.
Also, you can add a power port to the PC and connect your 5 and 12 to
that for most projects. the average power supply is way
underutilized.
Maybe Al Willimas can post his link to that ?
Dave
Dave
Do be careful not to short it out or you will reboot your computer or worse.
Inline fuse holders are probably smart.
Regards,
Al Williams
AWC
* Kits!
http://www.awce.com/kits.htm
Original Message
From: Dave Mucha [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ZIPLGwex2FAMxq9Iie9AElsnAfWGiGU53CBlgehqdWfEdpXgztRyQomqsob4aJe3YkbMy-1GUn8fhH0]davemucha@j...[/url
Sent: Sunday, May 02, 2004 10:50 AM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: Power to stamp
--- In basicstamps@yahoogroups.com, "tyckihd" <tycki@h...> wrote:
> Is it posible to power the BS2 from serial port while operating
No.
The serial port is a signal port and will only deliver about 10mA
maximum.
The spec for the parallel port is that if it delivers over 2.5mA at
over 2.5 volts, it is within spec. Laptops use a much lower power
output, typically just over 3 volts on the parallel port signals.
The Serial has more powre availble, but fewer pins. The +/- 14V
looks attractive, but the port will quickly drop voltage as you add
load.
The keyboard and mouse ports offer a lot of power if you are looking
for a power source.
The joystick port is the big winner here. Becareful, you can draw
amps and burn traces on the MB, then no joy.
The USB offers about 500mA max.
Also, you can add a power port to the PC and connect your 5 and 12 to
that for most projects. the average power supply is way
underutilized.
Maybe Al Willimas can post his link to that ?
Dave
Dave
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Yahoo! Groups Links
Original Message
> From: Dave Mucha [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=gF4AjtHSO1K2blFEV8_P-KBKA2FV1CcYgv9wyjA4FU0h2zfH0eFTCOpD-I_EW1g4a96Wk9qudSBM52Q9]davemucha@j...[/url
> Sent: May 2, 2004 8:50 AM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] Re: Power to stamp
>
<Snip>
> The joystick port is the big winner here. Becareful, you can draw
> amps and burn traces on the MB, then no joy.
</snip>
I just talked to CH products about how much power I could get from the
GameCard 3 Automatic (old product I have in a machine). They said it'll
deliver whatever the ISA (its an ISA slot card) spec can deliver, without
damage to the card. Of course, this just means that the card won't melt if
you draw more than the motherboard can handle - the motherboard may turn
into a smoking heap of ash.
>
>
> >
Original Message
> > From: Dave Mucha [noparse][[/noparse]mailto:davemucha@j...]
> > Sent: May 2, 2004 8:50 AM
> > To: basicstamps@yahoogroups.com
> > Subject: [noparse][[/noparse]basicstamps] Re: Power to stamp
> >
> <Snip>
> > The joystick port is the big winner here. Becareful, you can draw
> > amps and burn traces on the MB, then no joy.
> </snip>
>
> I just talked to CH products about how much power I could get from
the
> GameCard 3 Automatic (old product I have in a machine). They said
it'll
> deliver whatever the ISA (its an ISA slot card) spec can deliver,
without
> damage to the card. Of course, this just means that the card won't
melt if
> you draw more than the motherboard can handle - the motherboard may
turn
> into a smoking heap of ash.
Yup !
If you try to source 20ma per output on a Stamp you may release some
of the magic smoke !
Dave
NEW ! Low profile Chipircuits
http://www.visualmuses.com/chipcircuit/index.html
> Is it posible to power the BS2 from serial port while operating
thanks this helps