Blown ports : in dutch

Archiver

tuurlijk.

ik gebruik zelfs altijd een 1k weerstand in serie met de poorten van mijn
BS2e. Die stamps zijn net iets te duur om door een stommiteit op te blazen.
Een weerstand is een hele eenvoudige bescherming voor statische
electriciteit en program bugs: Input/Output verwisselen zorgt voor grote
stroom door de Basic Stamp, nu beperkt tot 5V/1k=5mA < 20mA.

succes ermee,

Matthijs Boerlage

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Original Message

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From: De Meester, Michel [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=FX9TAzd6XfX0creDfuBKUfZP_cPjGkbKY6OMs2Jl9weZKM3XoSSASaFYVV6zTaWpnt4Vd5Rn5F8j-ungghkls5lwtCxj]Michel.De.Meester@u...[/url
Sent: Monday, January 21, 2002 08:52
To: 'basicstamps@yahoogroups.com'
Subject: [noparse][[/noparse]basicstamps] Blown ports


Hello Stampers,

Sorry for My English but I live in the Dutch speaking part of Belgium ;-)

I blew up two ports of my BS2P40, I don't know why, one was directly
connected to a serial LCD, the other was connected via a 4k7 to the +5V as
input for a dallas Ibutton).

Probably there was something wrong with the ground connection between the
PCB's.

My question, can I put a 1k resistor in serie with the LCD line and iButton
line, acting as a current limiter in case something goes wrong?

Thanks in advance,

Michel De Meester



Met vriendelijke groetjes,

> ************************************************
> Michel De Meester
> Biotechnisch Onderhoud
> Universitair Ziekenhuis Antwerpen
> Wilrijkstraat 10
> 2650 Edegem - B
> tel: ++32 (0)3 821 36 47
> e-mail: michel.de.meester@u...
>
> *************************************************
>
>

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Archiver

Can you repost this in English also
Thanks
Travis

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Original Message

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From: Boerlage, M.L.G. [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ez0NpptGQT120SRf1ktrg-qm1iHBgSXbXt24j15Ek9kSAYJRLKpgdtn6ZlMdl5OXZvLDp1EMbZih5YzpuRokwQ5sVw]M.L.G.Boerlage@s...[/url
Sent: Monday, January 21, 2002 6:28 AM
To: 'basicstamps@yahoogroups.com'
Subject: RE: [noparse][[/noparse]basicstamps] Blown ports : in dutch

tuurlijk.

ik gebruik zelfs altijd een 1k weerstand in serie met de poorten van
mijn
BS2e. Die stamps zijn net iets te duur om door een stommiteit op te
blazen.
Een weerstand is een hele eenvoudige bescherming voor statische
electriciteit en program bugs: Input/Output verwisselen zorgt voor grote
stroom door de Basic Stamp, nu beperkt tot 5V/1k=5mA < 20mA.

succes ermee,

Matthijs Boerlage

---

Original Message

---

From: De Meester, Michel [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ITYYj83e9i15ucSF1lHxZF2hF7AAcQnBFFtXTNtcMB3OUeIg9VuBPft89laWRRgs-0cwqDuBgjQ5AAPRkUpic8XMA4agcnvyfi0]Michel.De.Meester@u...[/url
Sent: Monday, January 21, 2002 08:52
To: 'basicstamps@yahoogroups.com'
Subject: [noparse][[/noparse]basicstamps] Blown ports


Hello Stampers,

Sorry for My English but I live in the Dutch speaking part of Belgium
;-)

I blew up two ports of my BS2P40, I don't know why, one was directly
connected to a serial LCD, the other was connected via a 4k7 to the +5V
as
input for a dallas Ibutton).

Probably there was something wrong with the ground connection between
the
PCB's.

My question, can I put a 1k resistor in serie with the LCD line and
iButton
line, acting as a current limiter in case something goes wrong?

Thanks in advance,

Michel De Meester



Met vriendelijke groetjes,

> ************************************************
> Michel De Meester
> Biotechnisch Onderhoud
> Universitair Ziekenhuis Antwerpen
> Wilrijkstraat 10
> 2650 Edegem - B
> tel: ++32 (0)3 821 36 47
> e-mail: michel.de.meester@u...
>
> *************************************************
>
>

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.


Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/


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.


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http://docs.yahoo.com/info/terms/