Servo usage with power supply!!
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Posts: 46,084
Hi guys,
When i purchased the basic stamp board of education kit - full kit,
with a rev. B board, a rev. F BS2, it also came with a power
supply. I wanted to know if I could use the power supply when
running my servo which is controlled by the basic stamp or is my
only option to use a 9 volt battery? Theres a warning that said the
servo recieves power from the VIN, meaning i shouldn't use anything
above 6.5VCD when using the servo. I checked the appendix for one
of the tutorials on "what is a microcontroller" and it said when
using BOE rev. A/B boards, use a 9 volt batter, or a 6 volt battery
packing using AA batteries or a DC supply that provides exactly 6
volts regardless of the current draw. When i read the back of the
power supply that came with the kit, it says its output is 9VDC
300mA. Once again my question is just, if i could use this given
power supply to power the servo and everything attached to the board
ie. a few IC's, small series circuit.... or resort to buying more 9
volt batteries (i don't wanna use the 6 volt AA battery option).
Thank you for taking the time to read this, I tried to make it as
clear as possible my situation.
When i purchased the basic stamp board of education kit - full kit,
with a rev. B board, a rev. F BS2, it also came with a power
supply. I wanted to know if I could use the power supply when
running my servo which is controlled by the basic stamp or is my
only option to use a 9 volt battery? Theres a warning that said the
servo recieves power from the VIN, meaning i shouldn't use anything
above 6.5VCD when using the servo. I checked the appendix for one
of the tutorials on "what is a microcontroller" and it said when
using BOE rev. A/B boards, use a 9 volt batter, or a 6 volt battery
packing using AA batteries or a DC supply that provides exactly 6
volts regardless of the current draw. When i read the back of the
power supply that came with the kit, it says its output is 9VDC
300mA. Once again my question is just, if i could use this given
power supply to power the servo and everything attached to the board
ie. a few IC's, small series circuit.... or resort to buying more 9
volt batteries (i don't wanna use the 6 volt AA battery option).
Thank you for taking the time to read this, I tried to make it as
clear as possible my situation.
Comments
ll_deep_soul_ll@y... writes:
> When i purchased the basic stamp board of education kit - full kit,
> with a rev. B board, a rev. F BS2, it also came with a power
> supply. I wanted to know if I could use the power supply when
> running my servo which is controlled by the basic stamp or is my
> only option to use a 9 volt battery? Theres a warning that said the
> servo recieves power from the VIN, meaning i shouldn't use anything
> above 6.5VCD when using the servo. I checked the appendix for one
> of the tutorials on "what is a microcontroller" and it said when
> using BOE rev. A/B boards, use a 9 volt batter, or a 6 volt battery
> packing using AA batteries or a DC supply that provides exactly 6
> volts regardless of the current draw. When i read the back of the
> power supply that came with the kit, it says its output is 9VDC
> 300mA. Once again my question is just, if i could use this given
> power supply to power the servo and everything attached to the board
> ie. a few IC's, small series circuit.... or resort to buying more 9
> volt batteries (i don't wanna use the 6 volt AA battery option).
>
> Thank you for taking the time to read this, I tried to make it as
> clear as possible my situation.
>
You can use any power supply you want, but if you are using the servo port
your power supply must be a 6 volt battery. If you want to use the servo
with a 9 volt battery or wll power supply, the servo must be plugged into the
breadboard and power patched to it from the Vdd terminal.
Sid Weaver
W4EKQ
Port Richey, FL
[noparse][[/noparse]Non-text portions of this message have been removed]
on the back on the BOE it looks to me that both the 9 volt battery and the
wall wort power supply are connected to the same line which is fed into the
voltage regulator on the BOE. Why shoud a battery power the regulator any
differently than the Wall wort?
I am also doing the experiments in WAMC student book.
> [noparse][[/noparse]Original Message]
> From: ll_deep_soul_ll <ll_deep_soul_ll@y...>
> To: <basicstamps@yahoogroups.com>
> Date: 1/11/2004 10:25:05 AM
> Subject: [noparse][[/noparse]basicstamps] Servo usage with power supply!!
>
> Hi guys,
> When i purchased the basic stamp board of education kit - full kit,
> with a rev. B board, a rev. F BS2, it also came with a power
> supply. I wanted to know if I could use the power supply when
> running my servo which is controlled by the basic stamp or is my
> only option to use a 9 volt battery? Theres a warning that said the
> servo recieves power from the VIN, meaning i shouldn't use anything
> above 6.5VCD when using the servo. I checked the appendix for one
> of the tutorials on "what is a microcontroller" and it said when
> using BOE rev. A/B boards, use a 9 volt batter, or a 6 volt battery
> packing using AA batteries or a DC supply that provides exactly 6
> volts regardless of the current draw. When i read the back of the
> power supply that came with the kit, it says its output is 9VDC
> 300mA. Once again my question is just, if i could use this given
> power supply to power the servo and everything attached to the board
> ie. a few IC's, small series circuit.... or resort to buying more 9
> volt batteries (i don't wanna use the 6 volt AA battery option).
>
> Thank you for taking the time to read this, I tried to make it as
> clear as possible my situation.
>
>
>
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the default trace routes Vdd to the servo power connection. You can cut
a trace and solder a jumper to route Vin instead. The Rev C BOE now
includes a shunt that allows you to select between Vdd and Vin for the
servos.
-- Jon Williams
-- Parallax
Original Message
From: Shawn Lowe [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=99VX5T7jssXP4Uira-zKo8lP7gNNfA4BiMLRwssgSUBP6AZCbJ88pH0EaDgQe7_LYSVowQrhZjW-4zlY2ZlhYaWZ]livinlowe@e...[/url
Sent: Sunday, January 11, 2004 12:40 PM
To: basicstamps@yahoogroups.com
Subject: RE: [noparse][[/noparse]basicstamps] Servo usage with power supply!!
I admit this is confusing me too. When I look at the circuit board
traces on the back on the BOE it looks to me that both the 9 volt
battery and the wall wort power supply are connected to the same line
which is fed into the voltage regulator on the BOE. Why shoud a battery
power the regulator any differently than the Wall wort? I am also doing
the experiments in WAMC student book.
> [noparse][[/noparse]Original Message]
> From: ll_deep_soul_ll <ll_deep_soul_ll@y...>
> To: <basicstamps@yahoogroups.com>
> Date: 1/11/2004 10:25:05 AM
> Subject: [noparse][[/noparse]basicstamps] Servo usage with power supply!!
>
> Hi guys,
> When i purchased the basic stamp board of education kit - full kit,
> with a rev. B board, a rev. F BS2, it also came with a power
> supply. I wanted to know if I could use the power supply when
> running my servo which is controlled by the basic stamp or is my
> only option to use a 9 volt battery? Theres a warning that said the
> servo recieves power from the VIN, meaning i shouldn't use anything
> above 6.5VCD when using the servo. I checked the appendix for one
> of the tutorials on "what is a microcontroller" and it said when
> using BOE rev. A/B boards, use a 9 volt batter, or a 6 volt battery
> packing using AA batteries or a DC supply that provides exactly 6
> volts regardless of the current draw. When i read the back of the
> power supply that came with the kit, it says its output is 9VDC
> 300mA. Once again my question is just, if i could use this given
> power supply to power the servo and everything attached to the board
> ie. a few IC's, small series circuit.... or resort to buying more 9
> volt batteries (i don't wanna use the 6 volt AA battery option).
>
> Thank you for taking the time to read this, I tried to make it as
> clear as possible my situation.
>
>
>
> 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
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/basicstamps/
>
> To unsubscribe from this group, send an email to:
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abuse@p....
jwilliams@p... writes:
> I'm in a hotel at the moment without access to a Rev B BOE, but I think
> the default trace routes Vdd to the servo power connection. You can cut
> a trace and solder a jumper to route Vin instead. The Rev C BOE now
> includes a shunt that allows you to select between Vdd and Vin for the
> servos.
>
Hi, Jon
Just measured the servo port. Default trace is Vin.
Where are you - Holland?
Sid
[noparse][[/noparse]Non-text portions of this message have been removed]
located just below the 4 servo hook up spots.
Yes, mine seems to be connected to Vin as well.
> [noparse][[/noparse]Original Message]
> From: <Newzed@a...>
> To: <basicstamps@yahoogroups.com>
> Date: 1/11/2004 2:22:01 PM
> Subject: Re: [noparse][[/noparse]basicstamps] Servo usage with power supply!!
>
> In a message dated 1/11/2004 4:15:40 PM Eastern Standard Time,
> jwilliams@p... writes:
>
>
> > I'm in a hotel at the moment without access to a Rev B BOE, but I think
> > the default trace routes Vdd to the servo power connection. You can cut
> > a trace and solder a jumper to route Vin instead. The Rev C BOE now
> > includes a shunt that allows you to select between Vdd and Vin for the
> > servos.
> >
>
> Hi, Jon
>
> Just measured the servo port. Default trace is Vin.
>
> Where are you - Holland?
>
> Sid
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> 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
>
> To visit your group on the web, go to:
> http://groups.yahoo.com/group/basicstamps/
>
> To unsubscribe from this group, send an email to:
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>