How to make MCCdec switch an external 4,8v circuit

Original sent date : Fri Sep 04 23:35:43 CEST 2009
Hi Gerard,

Good question.

I would not use an opto. Opto's require quite some current to be
activated, which seems waste of energy to me.

Assuming you are working with MCCdec02: Note that MCCdec02 has an
internal operation voltage of (around) 4,15V. It depends on your actual
external circuit, but I think it should not be too difficult to switch
external logic operating at 4,8V with a logic signal of 0V/4.1V. A
simple CMOS logic gate should switch high/low on approx 2,4V given your
supply voltage of 4,8V.

Another option: I don't know how much current your external circuit uses
and wether 4,8V is the minimum required voltage.
An MCCdec02 output can drive approximately 20mA, so if you have a
circuit that makes sound when you simply put 4V on it and it does not
draw more than 20mA, you could drive it directly by the MCCdec.

If your circuit requires more than 20mA and less than 50mA and functions
at 4V, you could also feed it from the Vcc pin on the MCCdec02 and
(de)/activate it by one of the normal outputs. This pin is the internal
power supply for the MCCdec and supplies 4,15V. Note however that the
4,15V is also present during sleep mode, so your circuit must be very
economical in power consumption when not operated. Since the MCCdec02
has a step-up converter on-board, drawing I mA from Vcc draws approx.
5/vbat*I mA from the battery. So on 2,4V battery, 1mA on Vcc will draw
approx 2mA from the battery.

If you need more than 50mA and your horn blows when you simply put 4,8V
on your circuit, switch a logic-level MOSFET (BSS123, BSH103) by one of
the MCCdec outputs (you can connect the gate directly to the output and
the source to gnd/0V. The drain then switches on/off to gnd/0V, so
connect your horn between 4,8V and the drain of the MOSFET. Don't know
exactly by heart, but I think the BSH103 can switch 800mA

Hope this helps,
Leon
> Hallo,
>
>
> Ik wil in een vrachtwagen een extern printje aansturen.
>
> Dit printje gebruikt 4,8v. Nu is dat geen probleem; "gewoon" 4xAAA
> batterijen.
>
> Ik zit alleen met het probleem hoe ik deze module activeer. Het
> printje wordt nu geactiveerd met een drukschakelaar, maar het zou
> natuurlijk mooi zijn dit met de decoder te doen.
>
> Het kan denk ik niet zomaar aangezien we hier met een (externe) 4,8v
> werken.
>
> Hoe kan ik dit het beste aansluiten/ sturen? Misschien iets met een
> optocoupler? Welk type?
>
> Alvast dank voor het meedenken!
>
> Groeten,
>
> Gerard van Rekum
>

Original sent date : Sat Sep 05 00:20:16 CEST 2009
Hi,

By the way: it uses 25mah

Greets,

Gerard

--- In dinamousers@yahoogroups.com, Gerard Van Rekum <sunbeamtech@...> wrote:
>
> Hi Leon
>  
> Thanks for your answer.
>  
> I've got a technical drawing of the circuit, see attachement.
>  
> I personaly think that the idea with a mosfet is the best, or do you have another idea?
>  
> Thanks for thinking with me!
>  
> Greetings,
>  
> Gerard van Rekum
>  
>
>
> --- On Fri, 9/4/09, Leon van Perlo <leon@...> wrote:
>
>
> From: Leon van Perlo <leon@...>
> Subject: Re: dinamousers How to make MCCdec switch an external 4,8v circuit
> To: dinamousers@yahoogroups.com
> Date: Friday, September 4, 2009, 9:35 PM
>
>
> Hi Gerard,
>
> Good question.
>
> I would not use an opto. Opto's require quite some current to be
> activated, which seems waste of energy to me.
>
> Assuming you are working with MCCdec02: Note that MCCdec02 has an
> internal operation voltage of (around) 4,15V. It depends on your actual
> external circuit, but I think it should not be too difficult to switch
> external logic operating at 4,8V with a logic signal of 0V/4.1V. A
> simple CMOS logic gate should switch high/low on approx 2,4V given your
> supply voltage of 4,8V.
>
> Another option: I don't know how much current your external circuit uses
> and wether 4,8V is the minimum required voltage.
> An MCCdec02 output can drive approximately 20mA, so if you have a
> circuit that makes sound when you simply put 4V on it and it does not
> draw more than 20mA, you could drive it directly by the MCCdec.
>
> If your circuit requires more than 20mA and less than 50mA and functions
> at 4V, you could also feed it from the Vcc pin on the MCCdec02 and
> (de)/activate it by one of the normal outputs. This pin is the internal
> power supply for the MCCdec and supplies 4,15V. Note however that the
> 4,15V is also present during sleep mode, so your circuit must be very
> economical in power consumption when not operated. Since the MCCdec02
> has a step-up converter on-board, drawing I mA from Vcc draws approx.
> 5/vbat*I mA from the battery. So on 2,4V battery, 1mA on Vcc will draw
> approx 2mA from the battery.
>
> If you need more than 50mA and your horn blows when you simply put 4,8V
> on your circuit, switch a logic-level MOSFET (BSS123, BSH103) by one of
> the MCCdec outputs (you can connect the gate directly to the output and
> the source to gnd/0V. The drain then switches on/off to gnd/0V, so
> connect your horn between 4,8V and the drain of the MOSFET. Don't know
> exactly by heart, but I think the BSH103 can switch 800mA
>
> Hope this helps,
> Leon
> > Hallo,
> >
> >
> > Ik wil in een vrachtwagen een extern printje aansturen.
> >
> > Dit printje gebruikt 4,8v. Nu is dat geen probleem; "gewoon" 4xAAA
> > batterijen.
> >
> > Ik zit alleen met het probleem hoe ik deze module activeer. Het
> > printje wordt nu geactiveerd met een drukschakelaar, maar het zou
> > natuurlijk mooi zijn dit met de decoder te doen.
> >
> > Het kan denk ik niet zomaar aangezien we hier met een (externe) 4,8v
> > werken.
> >
> > Hoe kan ik dit het beste aansluiten/ sturen? Misschien iets met een
> > optocoupler? Welk type?
> >
> > Alvast dank voor het meedenken!
> >
> > Groeten,
> >
> > Gerard van Rekum
> >
>
>
>
> ------------------------------------
>
> To unsubscribe from this group, send an email to:
> mailto://dinamousers-unsubscribe@yahoogroups.com
>
> Yahoo! Groups Links
>

Original sent date : Sat Sep 05 02:17:08 CEST 2009

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Hi Gerard,<br>
<br>
Apparently is has a power supply connection and a switch to start
playback<br>
I can't see how the playback switch is wired, so it depends whether one
of the poles of the switch needs to be connected to + or one of the
poles needs connected to GND to start playback. Maybe it's different
from that, but I cannot tell from the layout view you've sent.<br>
<br>
Without knowing the details it becomes kind of reverse engineering. So
I guess you have to measure and try some things.<br>
The questions to be answered are:<br>
- What is the minimum operating voltage of the device?<br>
- How much current does it draw when playing and how much when not
playing?<br>
- If you power the device what is the voltage of the 2 pins of the
"play"switch with respect to e.g. 0V?<br>
- What happens to the voltage on the play switch (either pin since they
will be connected when closed) with respect to 0V when you press the
switch?<br>
<br>
Kind regards,<br>
Leon<br>
<blockquote cite="mid:483702.61678.qm@web59311.mail.re1.yahoo.com" type="cite"><span></span>
<div>
<div>
<div> <span>[Attachment(s)
from Gerard Van Rekum included below]</span> <br>
<br>
<table>
<tbody>
<tr>
<td valign="top">
<div>Hi Leon</div>
<div> </div>
<div>Thanks for your answer.</div>
<div> </div>
<div>I've got a technical drawing of the circuit, see
attachement.</div>
<div> </div>
<div>I personaly think that the idea with a mosfet is the best,
or do you have another idea?</div>
<div> </div>
<div>Thanks for thinking with me!</div>
<div> </div>
<div>Greetings,</div>
<div> </div>
<div>Gerard van Rekum</div>
<div> </div>
<div><br>
<br>
--- On <b>Fri, 9/4/09, Leon van Perlo <i><leon@vanperlo. net></i></b>
wrote:<br>
</div>
<blockquote><br>
From: Leon van Perlo <leon@vanperlo. net><br>
Subject: Re: dinamousers How to make MCCdec switch an external 4,8v
circuit<br>
To: dinamousers@ yahoogroups. com<br>
Date: Friday, September 4, 2009, 9:35 PM<br>
<br>
<div>Hi Gerard,<br>
<br>
Good question.<br>
<br>
I would not use an opto. Opto's require quite some current to be <br>
activated, which seems waste of energy to me.<br>
<br>
Assuming you are working with MCCdec02: Note that MCCdec02 has an <br>
internal operation voltage of (around) 4,15V. It depends on your actual
<br>
external circuit, but I think it should not be too difficult to switch <br>
external logic operating at 4,8V with a logic signal of 0V/4.1V. A <br>
simple CMOS logic gate should switch high/low on approx 2,4V given your
<br>
supply voltage of 4,8V.<br>
<br>
Another option: I don't know how much current your external circuit
uses <br>
and wether 4,8V is the minimum required voltage.<br>
An MCCdec02 output can drive approximately 20mA, so if you have a <br>
circuit that makes sound when you simply put 4V on it and it does not <br>
draw more than 20mA, you could drive it directly by the MCCdec.<br>
<br>
If your circuit requires more than 20mA and less than 50mA and
functions <br>
at 4V, you could also feed it from the Vcc pin on the MCCdec02 and <br>
(de)/activate it by one of the normal outputs. This pin is the internal
<br>
power supply for the MCCdec and supplies 4,15V. Note however that the <br>
4,15V is also present during sleep mode, so your circuit must be very <br>
economical in power consumption when not operated. Since the MCCdec02 <br>
has a step-up converter on-board, drawing I mA from Vcc draws approx. <br>
5/vbat*I mA from the battery. So on 2,4V battery, 1mA on Vcc will draw <br>
approx 2mA from the battery.<br>
<br>
If you need more than 50mA and your horn blows when you simply put 4,8V
<br>
on your circuit, switch a logic-level MOSFET (BSS123, BSH103) by one of
<br>
the MCCdec outputs (you can connect the gate directly to the output and
<br>
the source to gnd/0V. The drain then switches on/off to gnd/0V, so <br>
connect your horn between 4,8V and the drain of the MOSFET. Don't know <br>
exactly by heart, but I think the BSH103 can switch 800mA<br>
<br>
Hope this helps,<br>
Leon<br>
> Hallo,<br>
><br>
><br>
> Ik wil in een vrachtwagen een extern printje aansturen.<br>
><br>
> Dit printje gebruikt 4,8v. Nu is dat geen probleem; "gewoon" 4xAAA
<br>
> batterijen.<br>
><br>
> Ik zit alleen met het probleem hoe ik deze module activeer. Het <br>
> printje wordt nu geactiveerd met een drukschakelaar, maar het zou <br>
> natuurlijk mooi zijn dit met de decoder te doen.<br>
><br>
> Het kan denk ik niet zomaar aangezien we hier met een (externe)
4,8v <br>
> werken.<br>
><br>
> Hoe kan ik dit het beste aansluiten/ sturen? Misschien iets met
een <br>
> optocoupler? Welk type?<br>
><br>
> Alvast dank voor het meedenken!<br>
><br>
> Groeten,<br>
><br>
> Gerard van Rekum<br>
><br>
</div>
</blockquote>
</td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
</blockquote>
<br>

</p>

</div>

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<div width="1" style="color: white; clear: both;">

Original sent date : Sat Sep 05 16:22:13 CEST 2009
Hello,

I've just tested it, here are the answers on your questions:

> - What is the minimum operating voltage of the device

Minimum is 4,1v, the sounds are a little bit deformed, but it's acceptable

> - How much current does it draw when playing and how much when not playing?
when not playing: 3 mah, when playing: 80mah @ 4,1v

> - If you power the device what is the voltage of the 2 pins of the "play"switch with respect to e.g. 0V?

3,95v

> - What happens to the voltage on the play switch (either pin since they will be connected when closed) with respect to 0V when you press the switch?

it drops to 2,5v for 1/10 of a second, then again 3,95v

So it seems that it will work with the decoder supplied 4,1v, The only problem is the current of 80mah.

Greets,

Gerard van Rekum

Original sent date : Sat Sep 05 19:49:18 CEST 2009
Hi Gerard,
>
> I've just tested it, here are the answers on your questions:
> ...
> > - How much current does it draw when playing and how much when not
> playing?
> when not playing: 3 mah, when playing: 80mah @ 4,1v
>
The 80mA (without the "h") should be acceptable to draw from Vcc when
your battery voltage is over 2V
3mA (without the "H") is high when switching to sleep mode. It will
decrease your sleep-time-capacity with a factor 7.
If this is acceptable to you you might connect the sound module directly
to Vcc. Otherwise we have to make/think of a circuit that can power down
the sound module in sleep-mode and power-up with smooth start when
leaving sleep-mode
>
> > - If you power the device what is the voltage of the 2 pins of the
> "play"switch with respect to e.g. 0V?
> 3,95v
>
Both pins cannot be at 3,95V. Pressing the switch would have no effect
then. So one of them is 3,95 What is the other one?
>
> > - What happens to the voltage on the play switch (either pin since
> they will be connected when closed) with respect to 0V when you press
> the switch?
>
> it drops to 2,5v for 1/10 of a second, then again 3,95v
>
Dit you really measure the 2,5V correctly or is it just a guess? If you
want to drive this input e.g. by a mosfet it's important to know the
maximum "swing" of both poles of the switch
>
> So it seems that it will work with the decoder supplied 4,1v, The only
> problem is the current of 80mah.
>
I think the 80mA will work as long as your battery voltage is over 2V
The 3mA is more of a problem in sleep-mode, unless you agree not to use
sleep-mode in practice.
If this is accepable I suggest to connect the sound circuit to the Vcc
of the MCCdec and see if both work if you press the play-button.
Preferrably connect the Vcc through a 1..1,5Ohm resistor, or better
through a 4,7..10uH inductor to decouple hgh-frequency signals.

Kind regards,
Leon

Original sent date : Sat Sep 05 20:06:30 CEST 2009
Hi Leon,

Thanks for your advice. Current when not playing is 0,3mA, nog 3 mA, sorry.

I'm going to test it out and keep you in touch.

Greets,

Gerard
--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > I've just tested it, here are the answers on your questions:
> > ...
> > > - How much current does it draw when playing and how much when not
> > playing?
> > when not playing: 3 mah, when playing: 80mah @ 4,1v
> >
> The 80mA (without the "h") should be acceptable to draw from Vcc when
> your battery voltage is over 2V
> 3mA (without the "H") is high when switching to sleep mode. It will
> decrease your sleep-time-capacity with a factor 7.
> If this is acceptable to you you might connect the sound module directly
> to Vcc. Otherwise we have to make/think of a circuit that can power down
> the sound module in sleep-mode and power-up with smooth start when
> leaving sleep-mode
> >
> > > - If you power the device what is the voltage of the 2 pins of the
> > "play"switch with respect to e.g. 0V?
> > 3,95v
> >
> Both pins cannot be at 3,95V. Pressing the switch would have no effect
> then. So one of them is 3,95 What is the other one?
> >
> > > - What happens to the voltage on the play switch (either pin since
> > they will be connected when closed) with respect to 0V when you press
> > the switch?
> >
> > it drops to 2,5v for 1/10 of a second, then again 3,95v
> >
> Dit you really measure the 2,5V correctly or is it just a guess? If you
> want to drive this input e.g. by a mosfet it's important to know the
> maximum "swing" of both poles of the switch
> >
> > So it seems that it will work with the decoder supplied 4,1v, The only
> > problem is the current of 80mah.
> >
> I think the 80mA will work as long as your battery voltage is over 2V
> The 3mA is more of a problem in sleep-mode, unless you agree not to use
> sleep-mode in practice.
> If this is accepable I suggest to connect the sound circuit to the Vcc
> of the MCCdec and see if both work if you press the play-button.
> Preferrably connect the Vcc through a 1..1,5Ohm resistor, or better
> through a 4,7..10uH inductor to decouple hgh-frequency signals.
>
> Kind regards,
> Leon
>

Original sent date : Sat Sep 05 20:07:10 CEST 2009
Hi Leon,

Thanks for your advice. Current when not playing is 0,3mA, not 3 mA, sorry.

I'm going to test it out and keep you in touch.

Greets,

Gerard

--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > I've just tested it, here are the answers on your questions:
> > ...
> > > - How much current does it draw when playing and how much when not
> > playing?
> > when not playing: 3 mah, when playing: 80mah @ 4,1v
> >
> The 80mA (without the "h") should be acceptable to draw from Vcc when
> your battery voltage is over 2V
> 3mA (without the "H") is high when switching to sleep mode. It will
> decrease your sleep-time-capacity with a factor 7.
> If this is acceptable to you you might connect the sound module directly
> to Vcc. Otherwise we have to make/think of a circuit that can power down
> the sound module in sleep-mode and power-up with smooth start when
> leaving sleep-mode
> >
> > > - If you power the device what is the voltage of the 2 pins of the
> > "play"switch with respect to e.g. 0V?
> > 3,95v
> >
> Both pins cannot be at 3,95V. Pressing the switch would have no effect
> then. So one of them is 3,95 What is the other one?
> >
> > > - What happens to the voltage on the play switch (either pin since
> > they will be connected when closed) with respect to 0V when you press
> > the switch?
> >
> > it drops to 2,5v for 1/10 of a second, then again 3,95v
> >
> Dit you really measure the 2,5V correctly or is it just a guess? If you
> want to drive this input e.g. by a mosfet it's important to know the
> maximum "swing" of both poles of the switch
> >
> > So it seems that it will work with the decoder supplied 4,1v, The only
> > problem is the current of 80mah.
> >
> I think the 80mA will work as long as your battery voltage is over 2V
> The 3mA is more of a problem in sleep-mode, unless you agree not to use
> sleep-mode in practice.
> If this is accepable I suggest to connect the sound circuit to the Vcc
> of the MCCdec and see if both work if you press the play-button.
> Preferrably connect the Vcc through a 1..1,5Ohm resistor, or better
> through a 4,7..10uH inductor to decouple hgh-frequency signals.
>
> Kind regards,
> Leon
>

Original sent date : Fri Sep 11 00:09:11 CEST 2009
Hi,

So,when i'm correct, i've got to place my module between VCC and a exit like x3?
What about the pollarety?

Thanks

Gerard van Rekum

--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > I've just tested it, here are the answers on your questions:
> > ...
> > > - How much current does it draw when playing and how much when not
> > playing?
> > when not playing: 3 mah, when playing: 80mah @ 4,1v
> >
> The 80mA (without the "h") should be acceptable to draw from Vcc when
> your battery voltage is over 2V
> 3mA (without the "H") is high when switching to sleep mode. It will
> decrease your sleep-time-capacity with a factor 7.
> If this is acceptable to you you might connect the sound module directly
> to Vcc. Otherwise we have to make/think of a circuit that can power down
> the sound module in sleep-mode and power-up with smooth start when
> leaving sleep-mode
> >
> > > - If you power the device what is the voltage of the 2 pins of the
> > "play"switch with respect to e.g. 0V?
> > 3,95v
> >
> Both pins cannot be at 3,95V. Pressing the switch would have no effect
> then. So one of them is 3,95 What is the other one?
> >
> > > - What happens to the voltage on the play switch (either pin since
> > they will be connected when closed) with respect to 0V when you press
> > the switch?
> >
> > it drops to 2,5v for 1/10 of a second, then again 3,95v
> >
> Dit you really measure the 2,5V correctly or is it just a guess? If you
> want to drive this input e.g. by a mosfet it's important to know the
> maximum "swing" of both poles of the switch
> >
> > So it seems that it will work with the decoder supplied 4,1v, The only
> > problem is the current of 80mah.
> >
> I think the 80mA will work as long as your battery voltage is over 2V
> The 3mA is more of a problem in sleep-mode, unless you agree not to use
> sleep-mode in practice.
> If this is accepable I suggest to connect the sound circuit to the Vcc
> of the MCCdec and see if both work if you press the play-button.
> Preferrably connect the Vcc through a 1..1,5Ohm resistor, or better
> through a 4,7..10uH inductor to decouple hgh-frequency signals.
>
> Kind regards,
> Leon
>

Original sent date : Fri Sep 11 13:34:54 CEST 2009
Hi,

I really was a little bit sleepy yesterday.

I think i've got to place my module between VCC (+) and the GND.

Then i've got to desolder the switch on the external circuit and solder 2 wires from these contacts to x3 and the GND.

Am I correct?

Thanks

Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@...> wrote:
>
> Hi,
>
> So,when i'm correct, i've got to place my module between VCC and a exit like x3?
> What about the pollarety?
>
> Thanks
>
> Gerard van Rekum
>
> --- In dinamousers@yahoogroups.com, Leon van Perlo <leon@> wrote:
> >
> > Hi Gerard,
> > >
> > > I've just tested it, here are the answers on your questions:
> > > ...
> > > > - How much current does it draw when playing and how much when not
> > > playing?
> > > when not playing: 3 mah, when playing: 80mah @ 4,1v
> > >
> > The 80mA (without the "h") should be acceptable to draw from Vcc when
> > your battery voltage is over 2V
> > 3mA (without the "H") is high when switching to sleep mode. It will
> > decrease your sleep-time-capacity with a factor 7.
> > If this is acceptable to you you might connect the sound module directly
> > to Vcc. Otherwise we have to make/think of a circuit that can power down
> > the sound module in sleep-mode and power-up with smooth start when
> > leaving sleep-mode
> > >
> > > > - If you power the device what is the voltage of the 2 pins of the
> > > "play"switch with respect to e.g. 0V?
> > > 3,95v
> > >
> > Both pins cannot be at 3,95V. Pressing the switch would have no effect
> > then. So one of them is 3,95 What is the other one?
> > >
> > > > - What happens to the voltage on the play switch (either pin since
> > > they will be connected when closed) with respect to 0V when you press
> > > the switch?
> > >
> > > it drops to 2,5v for 1/10 of a second, then again 3,95v
> > >
> > Dit you really measure the 2,5V correctly or is it just a guess? If you
> > want to drive this input e.g. by a mosfet it's important to know the
> > maximum "swing" of both poles of the switch
> > >
> > > So it seems that it will work with the decoder supplied 4,1v, The only
> > > problem is the current of 80mah.
> > >
> > I think the 80mA will work as long as your battery voltage is over 2V
> > The 3mA is more of a problem in sleep-mode, unless you agree not to use
> > sleep-mode in practice.
> > If this is accepable I suggest to connect the sound circuit to the Vcc
> > of the MCCdec and see if both work if you press the play-button.
> > Preferrably connect the Vcc through a 1..1,5Ohm resistor, or better
> > through a 4,7..10uH inductor to decouple hgh-frequency signals.
> >
> > Kind regards,
> > Leon
> >
>

Original sent date : Fri Sep 11 15:03:50 CEST 2009
Hi Gerard,
>
> I really was a little bit sleepy yesterday.
> I think i've got to place my module between VCC (+) and the GND.
>
You could try that first to test if it plays on the internal MCCdec
supply voltage.
>
> Then i've got to desolder the switch on the external circuit and
> solder 2 wires from these contacts to x3 and the GND.
>
You don't have to desolder the switch. As long as you don't press it it
will be open anyway.
>
> Am I correct?
>
I don't know. I'm waiting for your answer on the following question:

>>> If you power the device what is the voltage of the 2 pins of the
>>> "play"switch with respect to e.g. 0V?
>> 3,95v
> Both pins cannot be at 3,95V. Pressing the switch would have no effect
> then. So one of them is 3,95 What is the other one?
Kind regards,
Leon

Original sent date : Fri Sep 11 20:57:37 CEST 2009
Hi Leon,

It is working with internal MCCdec supplied voltage.

> >>> If you power the device what is the voltage of the 2 pins of the
> >>> "play"switch with respect to e.g. 0V?
> >> 3,95v
> > Both pins cannot be at 3,95V. Pressing the switch would have no effect
> > then. So one of them is 3,95 What is the other one?

The other one is 0v.

What to do next?

Greetings,

Gerard

--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > I really was a little bit sleepy yesterday.
> > I think i've got to place my module between VCC (+) and the GND.
> >
> You could try that first to test if it plays on the internal MCCdec
> supply voltage.
> >
> > Then i've got to desolder the switch on the external circuit and
> > solder 2 wires from these contacts to x3 and the GND.
> >
> You don't have to desolder the switch. As long as you don't press it it
> will be open anyway.
> >
> > Am I correct?
> >
> I don't know. I'm waiting for your answer on the following question:
>
> >>> If you power the device what is the voltage of the 2 pins of the
> >>> "play"switch with respect to e.g. 0V?
> >> 3,95v
> > Both pins cannot be at 3,95V. Pressing the switch would have no effect
> > then. So one of them is 3,95 What is the other one?
> Kind regards,
> Leon
>

Original sent date : Fri Sep 11 21:40:39 CEST 2009
Hi!

Just did some testing, if you don't mather i'm writing in dutch:

Standaard is de situatie op de switch:

Pin 1: 3,95v
Pin 2: 0v

Wanneer je 4,15v (van de power) op pin 2 zet gebeurd er niets.
Wanneer je 0v (van de power) op pin 1 zet speelt hij af.

Wanneer je 0v op pin 1 zet is de situatie als volgt:

Pin 1: 0v
Pin 2: 0v

Hij schakelt dus blijkbaar met de 0v...

De decoder levert standaard 4,05 volt op een uitgang wanneer deze actief is, en 0v wanneer hij niet actief is. Een logische beredenering levert dan op dat wanneer je simpel weg een uitgang (zeg x3) op pin 1 zet en de gnd op pin 2, de module gaat afspelen wanneer de uitgang NIET actief is. En ja hoor: hij speelt af wanneer de uitgang niet actief is, en stopt wanneer hij actief is.

Dit is dus niet verkeerd om....

Hoe op te lossen?

Groeten/ Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@...> wrote:
>
> Hi Leon,
>
> It is working with internal MCCdec supplied voltage.
>
> > >>> If you power the device what is the voltage of the 2 pins of the
> > >>> "play"switch with respect to e.g. 0V?
> > >> 3,95v
> > > Both pins cannot be at 3,95V. Pressing the switch would have no effect
> > > then. So one of them is 3,95 What is the other one?
>
> The other one is 0v.
>
> What to do next?
>
> Greetings,
>
> Gerard
>
> --- In dinamousers@yahoogroups.com, Leon van Perlo <leon@> wrote:
> >
> > Hi Gerard,
> > >
> > > I really was a little bit sleepy yesterday.
> > > I think i've got to place my module between VCC (+) and the GND.
> > >
> > You could try that first to test if it plays on the internal MCCdec
> > supply voltage.
> > >
> > > Then i've got to desolder the switch on the external circuit and
> > > solder 2 wires from these contacts to x3 and the GND.
> > >
> > You don't have to desolder the switch. As long as you don't press it it
> > will be open anyway.
> > >
> > > Am I correct?
> > >
> > I don't know. I'm waiting for your answer on the following question:
> >
> > >>> If you power the device what is the voltage of the 2 pins of the
> > >>> "play"switch with respect to e.g. 0V?
> > >> 3,95v
> > > Both pins cannot be at 3,95V. Pressing the switch would have no effect
> > > then. So one of them is 3,95 What is the other one?
> > Kind regards,
> > Leon
> >
>

Original sent date : Fri Sep 11 22:12:53 CEST 2009
Hi Gerard,
>
> Just did some testing, if you don't mather i'm writing in dutch:
>
No, I'll answer in English

I think you don't have to connect your "pin 2", since it already plays
when you tie "pin 1" to GND. The reference potential is made already,
since you power the module from the MCCdec.

To do it properly, you'll have to invert the signal of the output pin.
Unfortunately, there's no way to do it in software. Fortunately its
somewhat better done in hardware since then the MCCdec output won't
drive anything into the sound circuit which may not be meant to happen.

Inverting can be done by a mosfet and, to do it properly, one resistor.
You can use any N-channel enhanced "logic level mosfet", e.g. the BSS123
or BSH103 (both are smd SOT23). Resistor value is not really important,
it can be anything from 10k to 180k
Mosfet: Source to GND, Drain to "pin 2", Gate to MCCdec output. Resistor
between Gate and Source.

You can also try to do it with a normal NPN transistor (e.g. BC547). A
transistor however will not pull lower than approx 0,5V, so it may not
work (90% chance though it will). In case of a transistor: Emitter to
GND, Collector to "pin 2", Base to MCCdec output via a resistor of 1k or so.

(pls note the difference: with the mosfet the resistor is parallel
between G and S, with the transistor the resistor is between B and MCCdec)

If you need a diagram, let me know.

Leon

Original sent date : Fri Sep 11 22:23:52 CEST 2009
Hi Leon,

Thanks for your advice, I'm going to test it with a bc547 next sunday.

If this won't work i've got to get a BSS123 .

I'll let you know!

Greetings,

Gerard

--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > Just did some testing, if you don't mather i'm writing in dutch:
> >
> No, I'll answer in English
>
> I think you don't have to connect your "pin 2", since it already plays
> when you tie "pin 1" to GND. The reference potential is made already,
> since you power the module from the MCCdec.
>
> To do it properly, you'll have to invert the signal of the output pin.
> Unfortunately, there's no way to do it in software. Fortunately its
> somewhat better done in hardware since then the MCCdec output won't
> drive anything into the sound circuit which may not be meant to happen.
>
> Inverting can be done by a mosfet and, to do it properly, one resistor.
> You can use any N-channel enhanced "logic level mosfet", e.g. the BSS123
> or BSH103 (both are smd SOT23). Resistor value is not really important,
> it can be anything from 10k to 180k
> Mosfet: Source to GND, Drain to "pin 2", Gate to MCCdec output. Resistor
> between Gate and Source.
>
> You can also try to do it with a normal NPN transistor (e.g. BC547). A
> transistor however will not pull lower than approx 0,5V, so it may not
> work (90% chance though it will). In case of a transistor: Emitter to
> GND, Collector to "pin 2", Base to MCCdec output via a resistor of 1k or so.
>
> (pls note the difference: with the mosfet the resistor is parallel
> between G and S, with the transistor the resistor is between B and MCCdec)
>
> If you need a diagram, let me know.
>
> Leon
>

Original sent date : Sun Sep 13 11:16:04 CEST 2009
Hi Leon,

It's working! The only thing i did differently is to connect the Collector of the BC547 to pin 1, not pin 2.

With the supplied 4,05v (not 4,15), the sound has a bit noise...

Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?

Thanks!

Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, Leon van Perlo <leon@...> wrote:
>
> Hi Gerard,
> >
> > Just did some testing, if you don't mather i'm writing in dutch:
> >
> No, I'll answer in English
>
> I think you don't have to connect your "pin 2", since it already plays
> when you tie "pin 1" to GND. The reference potential is made already,
> since you power the module from the MCCdec.
>
> To do it properly, you'll have to invert the signal of the output pin.
> Unfortunately, there's no way to do it in software. Fortunately its
> somewhat better done in hardware since then the MCCdec output won't
> drive anything into the sound circuit which may not be meant to happen.
>
> Inverting can be done by a mosfet and, to do it properly, one resistor.
> You can use any N-channel enhanced "logic level mosfet", e.g. the BSS123
> or BSH103 (both are smd SOT23). Resistor value is not really important,
> it can be anything from 10k to 180k
> Mosfet: Source to GND, Drain to "pin 2", Gate to MCCdec output. Resistor
> between Gate and Source.
>
> You can also try to do it with a normal NPN transistor (e.g. BC547). A
> transistor however will not pull lower than approx 0,5V, so it may not
> work (90% chance though it will). In case of a transistor: Emitter to
> GND, Collector to "pin 2", Base to MCCdec output via a resistor of 1k or so.
>
> (pls note the difference: with the mosfet the resistor is parallel
> between G and S, with the transistor the resistor is between B and MCCdec)
>
> If you need a diagram, let me know.
>
> Leon
>

Original sent date : Sun Sep 13 11:43:03 CEST 2009
Hi Gerard,
>
> It's working!
>
Great!
>
> The only thing i did differently is to connect the Collector of the
> BC547 to pin 1, not pin 2.
>
You're correct, it should have been pin 1
>
> With the supplied 4,05v (not 4,15), the sound has a bit noise...
> Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
>
With this interface "circuit", yes you can. The transistor (of mosfet if
you'd used that) will only pull pin 1 of the sound module to GND, so it
does not matter what the supply voltage is (with some limit of course),
as long as you tie the GNDs of both circuits together.

Leon

Original sent date : Sun Sep 13 13:12:38 CEST 2009
Hi Gerard

The soundboard that you are using is it from conrad?
I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
Couldt you make a simpel schematic how to youse it with the MCC decoder?

Jan Hendriks

----- Original Message -----
From: Leon van Perlo
To: dinamousers@yahoogroups.com
Sent: Sunday, September 13, 2009 11:43 AM
Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit

Hi Gerard,
>
> It's working!
>
Great!
>
> The only thing i did differently is to connect the Collector of the
> BC547 to pin 1, not pin 2.
>
You're correct, it should have been pin 1
>
> With the supplied 4,05v (not 4,15), the sound has a bit noise...
> Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
>
With this interface "circuit", yes you can. The transistor (of mosfet if
you'd used that) will only pull pin 1 of the sound module to GND, so it
does not matter what the supply voltage is (with some limit of course),
as long as you tie the GNDs of both circuits together.

Leon

__ NOD32 4420 (20090912) Informatie __

Dit bericht is gecontroleerd door het NOD32 Antivirus Systeem.
http://www.nod32.nl

Original sent date : Sun Sep 13 14:08:04 CEST 2009
Hi Jan,

Yes, that's it!
I'm first going to test the module in my car, when testing is successful I will maken a schematic how to!

Greetings,

Gerard

--- In dinamousers@yahoogroups.com, "jan home" <ja.hendriks@...> wrote:
>
> Hi Gerard
>
> The soundboard that you are using is it from conrad?
> I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
> Couldt you make a simpel schematic how to youse it with the MCC decoder?
>
> Jan Hendriks
>
> ----- Original Message -----
> From: Leon van Perlo
> To: dinamousers@yahoogroups.com
> Sent: Sunday, September 13, 2009 11:43 AM
> Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
>
>
> Hi Gerard,
> >
> > It's working!
> >
> Great!
> >
> > The only thing i did differently is to connect the Collector of the
> > BC547 to pin 1, not pin 2.
> >
> You're correct, it should have been pin 1
> >
> > With the supplied 4,05v (not 4,15), the sound has a bit noise...
> > Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
> >
> With this interface "circuit", yes you can. The transistor (of mosfet if
> you'd used that) will only pull pin 1 of the sound module to GND, so it
> does not matter what the supply voltage is (with some limit of course),
> as long as you tie the GNDs of both circuits together.
>
> Leon
>
>
>
>
>
> __ NOD32 4420 (20090912) Informatie __
>
> Dit bericht is gecontroleerd door het NOD32 Antivirus Systeem.
> http://www.nod32.nl
>

Original sent date : Sun Sep 13 19:24:18 CEST 2009
Hi!

For those who are curious about the truck with sound:

http://www.youtube.com/watch?v=s-jlycmfUsw

A movie of the completed truck with all LEDs and sound!

And the page on my website with some info:

http://www.spoorh0.nl/index.php/car-system/56

Happy watching!

Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@...> wrote:
>
> Hi Jan,
>
> Yes, that's it!
> I'm first going to test the module in my car, when testing is successful I will maken a schematic how to!
>
> Greetings,
>
> Gerard
>
> --- In dinamousers@yahoogroups.com, "jan home" <ja.hendriks@> wrote:
> >
> > Hi Gerard
> >
> > The soundboard that you are using is it from conrad?
> > I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
> > Couldt you make a simpel schematic how to youse it with the MCC decoder?
> >
> > Jan Hendriks
> >
> > ----- Original Message -----
> > From: Leon van Perlo
> > To: dinamousers@yahoogroups.com
> > Sent: Sunday, September 13, 2009 11:43 AM
> > Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
> >
> >
> > Hi Gerard,
> > >
> > > It's working!
> > >
> > Great!
> > >
> > > The only thing i did differently is to connect the Collector of the
> > > BC547 to pin 1, not pin 2.
> > >
> > You're correct, it should have been pin 1
> > >
> > > With the supplied 4,05v (not 4,15), the sound has a bit noise...
> > > Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
> > >
> > With this interface "circuit", yes you can. The transistor (of mosfet if
> > you'd used that) will only pull pin 1 of the sound module to GND, so it
> > does not matter what the supply voltage is (with some limit of course),
> > as long as you tie the GNDs of both circuits together.
> >
> > Leon
> >
> >
> >
> >
> >
> > __ NOD32 4420 (20090912) Informatie __
> >
> > Dit bericht is gecontroleerd door het NOD32 Antivirus Systeem.
> > http://www.nod32.nl
> >
>

Original sent date : Sun Sep 13 19:26:22 CEST 2009

hey gerard

ik zat net te kijken op je site. wat is dat gaaf die toeter. komt er een schema ergens te staan hoe het is aangesloten?

mvg Robbert

To: dinamousers@yahoogroups.com
From: sunbeamtech@yahoo.com
Date: Sun, 13 Sep 2009 17:24:18 +0000
Subject: dinamousers Re: How to make MCCdec switch an external 4,8v circuit

Hi!

For those who are curious about the truck with sound:

http://www.youtube.com/watch?v=s-jlycmfUsw

A movie of the completed truck with all LEDs and sound!

And the page on my website with some info:

http://www.spoorh0.nl/index.php/car-system/56

Happy watching!

Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@...> wrote:
>
> Hi Jan,
>
> Yes, that's it!
> I'm first going to test the module in my car, when testing is successful I will maken a schematic how to!
>
> Greetings,
>
> Gerard
>
> --- In dinamousers@yahoogroups.com, "jan home" <ja.hendriks@> wrote:
> >
> > Hi Gerard
> >
> > The soundboard that you are using is it from conrad?
> > I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
> > Couldt you make a simpel schematic how to youse it with the MCC decoder?
> >
> > Jan Hendriks
> >
> > ----- Original Message -----
> > From: Leon van Perlo
> > To: dinamousers@yahoogroups.com
> > Sent: Sunday, September 13, 2009 11:43 AM
> > Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
> >
> >
> > Hi Gerard,
> > >
> > > It's working!
> > >
> > Great!
> > >
> > > The only thing i did differently is to connect the Collector of the
> > > BC547 to pin 1, not pin 2.
> > >
> > You're correct, it should have been pin 1
> > >
> > > With the supplied 4,05v (not 4,15), the sound has a bit noise...
> > > Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
> > >
> > With this interface "circuit", yes you can. The transistor (of mosfet if
> > you'd used that) will only pull pin 1 of the sound module to GND, so it
> > does not matter what the supply voltage is (with some limit of course),
> > as long as you tie the GNDs of both circuits together.
> >
> > Leon
> >
> >
> >
> >
> >
> > __ NOD32 4420 (20090912) Informatie __
> >
> > Dit bericht is gecontroleerd door het NOD32 Antivirus Systeem.
> > http://www.nod32.nl
> >
>

_____________
Nieuws, entertainment en de laatste roddels. Je vind het op MSN.nl!
http://nl.msn.com/

Original sent date : Sun Sep 13 19:30:26 CEST 2009
Hoi,

Ga a.s. donderdag de truck een avond testen @ de vereniging.
Daarna zal ik even een schema maken!

Groeten,

Gerard

--- In dinamousers@yahoogroups.com, robbert glorie <grobbert@...> wrote:
>
>
> hey gerard
>
>
>
> ik zat net te kijken op je site. wat is dat gaaf die toeter. komt er een schema ergens te staan hoe het is aangesloten?
>
>
>
> mvg Robbert
>
>
>
> To: dinamousers@yahoogroups.com
> From: sunbeamtech@...
> Date: Sun, 13 Sep 2009 17:24:18 +0000
> Subject: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
>
>
>
>
>
> Hi!
>
> For those who are curious about the truck with sound:
>
> http://www.youtube.com/watch?v=s-jlycmfUsw
>
> A movie of the completed truck with all LEDs and sound!
>
> And the page on my website with some info:
>
> http://www.spoorh0.nl/index.php/car-system/56
>
> Happy watching!
>
> Greetings,
>
> Gerard van Rekum
>
> --- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@> wrote:
> >
> > Hi Jan,
> >
> > Yes, that's it!
> > I'm first going to test the module in my car, when testing is successful I will maken a schematic how to!
> >
> > Greetings,
> >
> > Gerard
> >
> > --- In dinamousers@yahoogroups.com, "jan home" <ja.hendriks@> wrote:
> > >
> > > Hi Gerard
> > >
> > > The soundboard that you are using is it from conrad?
> > > I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
> > > Couldt you make a simpel schematic how to youse it with the MCC decoder?
> > >
> > > Jan Hendriks
> > >
> > > ----- Original Message -----
> > > From: Leon van Perlo
> > > To: dinamousers@yahoogroups.com
> > > Sent: Sunday, September 13, 2009 11:43 AM
> > > Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
> > >
> > >
> > > Hi Gerard,
> > > >
> > > > It's working!
> > > >
> > > Great!
> > > >
> > > > The only thing i did differently is to connect the Collector of the
> > > > BC547 to pin 1, not pin 2.
> > > >
> > > You're correct, it should have been pin 1
> > > >
> > > > With the supplied 4,05v (not 4,15), the sound has a bit noise...
> > > > Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
> > > >
> > > With this interface "circuit", yes you can. The transistor (of mosfet if
> > > you'd used that) will only pull pin 1 of the sound module to GND, so it
> > > does not matter what the supply voltage is (with some limit of course),
> > > as long as you tie the GNDs of both circuits together.
> > >
> > > Leon
> > >
> > >
> > >
> > >
> > >
> > > __ NOD32 4420 (20090912) Informatie __
> > >
> > > Dit bericht is gecontroleerd door het NOD32 Antivirus Systeem.
> > > http://www.nod32.nl
> > >
> >
>
>
>
>
>
>
>
>
>
> _____________
> Nieuws, entertainment en de laatste roddels. Je vind het op MSN.nl!
> http://nl.msn.com/
>

Original sent date : Sun Sep 13 20:14:55 CEST 2009

Hi!

Bedankt voor het compliment!

Ik ben lid van die yahoo group ja, zal binnekort even iets posten daar!

Met vriendelijke groet,

G. van Rekum

From: Hans.Nouwens@xs4all.nl
To: gerard@vanrekum.nl
Subject: FW: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
Date: Sun, 13 Sep 2009 20:13:29 +0200

Gerard,

Complimenten!!!

Ben jij lid van de Yahoo groep Faller_Car_System? Dit lijkt me een fantastisch voorbeeld en reclame door dinamo.

Met vriendelijke groet,
Hans Nouwens.

From: dinamousers@yahoogroups.com mailto:dinamousers@yahoogroups.com On Behalf Of gvanrekum
Sent: zondag 13 september 2009 19:24
To: dinamousers@yahoogroups.com
Subject: dinamousers Re: How to make MCCdec switch an external 4,8v circuit

Hi!

For those who are curious about the truck with sound:

http://www.youtube.com/watch?v=s-jlycmfUsw

A movie of the completed truck with all LEDs and sound!

And the page on my website with some info:

http://www.spoorh0.nl/index.php/car-system/56

Happy watching!

Greetings,

Gerard van Rekum

--- In dinamousers@yahoogroups.com, "gvanrekum" <sunbeamtech@...> wrote:
>
> Hi Jan,
>
> Yes, that's it!
> I'm first going to test the module in my car, when testing is successful I will maken a schematic how to!
>
> Greetings,
>
> Gerard
>
> --- In dinamousers@yahoogroups.com, "jan home" <ja.hendriks@> wrote:
> >
> > Hi Gerard
> >
> > The soundboard that you are using is it from conrad?
> > I think i have the same modul, looks the same. ( Bestnr.: 130017 - 89 )
> > Couldt you make a simpel schematic how to youse it with the MCC decoder?
> >
> > Jan Hendriks
> >
> > ----- Original Message -----
> > From: Leon van Perlo
> > To: dinamousers@yahoogroups.com
> > Sent: Sunday, September 13, 2009 11:43 AM
> > Subject: Re: dinamousers Re: How to make MCCdec switch an external 4,8v circuit
> >
> >
> > Hi Gerard,
> > >
> > > It's working!
> > >
> > Great!
> > >
> > > The only thing i did differently is to connect the Collector of the
> > > BC547 to pin 1, not pin 2.
> > >
> > You're correct, it should have been pin 1
> > >
> > > With the supplied 4,05v (not 4,15), the sound has a bit noise...
> > > Can I place 4,8v, instead of VCC, on the power pins of my soundmodule?
> > >
> > With this interface "circuit", yes you can. The transistor (of mosfet if
> > you'd used that) will only pull pin 1 of the sound module to GND, so it
> > does not matter what the supply voltage is (with some limit of course),
> > as long as you tie the GNDs of both circuits together.
> >
> > Leon
> >
> >
> >
> >
> >
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> >
>