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~misfit~
Guest

Sun Sep 18, 2016 7:30 am   



Hi group.

My car doesn't have an intermittent wiper setting and I've been trying to
sort something out for a while now. I'm not competent enough to make my own
module with a 555 and perfboard and, unlike back in the 1980s, fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback there
are no instructions with it.) I'm looking to wire this into the first
setting on the wiper switch and have it pulse power say every ten seconds
for two seconds or so then swap the second wiper setting from fast to normal
(I've only used fast once in 10 years so, then only for 30 seconds I won't
miss it.)

This is exactly what I want yeah? <fingers crossed>
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

Computer Nerd Kev
Guest

Sun Sep 18, 2016 7:30 am   



~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Quote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been trying to
sort something out for a while now. I'm not competent enough to make my own
module with a 555 and perfboard and, unlike back in the 1980s, fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback there
are no instructions with it.) I'm looking to wire this into the first
setting on the wiper switch and have it pulse power say every ten seconds
for two seconds or so then swap the second wiper setting from fast to normal
(I've only used fast once in 10 years so, then only for 30 seconds I won't
miss it.)

This is exactly what I want yeah? <fingers crossed


I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking

--
__ __
#_ < |\| |< _#


Guest

Sun Sep 18, 2016 7:30 am   



On Stardate Sun, 18 Sep 2016 04:52:17 +0000 (UTC),
not_at_telling.you.invalid (Computer Nerd Kev) applied digits to the
keyboard and routed the information from some kind of brain
(presumably), thusly:


i did this a long long time ago with an old car.

as i remember it i needed to use the relay contact to break the
exiting wire and on changeover apply power briefly to the motor.

then quickly release the relay and reclose the original wiring to
allow the homing and stopping circuit to function.

if you just apply power to the original wiper wire it blew a fuse when
the wiper hit home.

Quote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been trying to
sort something out for a while now. I'm not competent enough to make my own
module with a 555 and perfboard and, unlike back in the 1980s, fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback there
are no instructions with it.) I'm looking to wire this into the first
setting on the wiper switch and have it pulse power say every ten seconds
for two seconds or so then swap the second wiper setting from fast to normal
(I've only used fast once in 10 years so, then only for 30 seconds I won't
miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking

--
__ __
#_ < |\| |< _#


~misfit~
Guest

Sun Sep 18, 2016 2:32 pm   



Once upon a time on usenet reese wrote:
Quote:
On Stardate Sun, 18 Sep 2016 04:52:17 +0000 (UTC),
not_at_telling.you.invalid (Computer Nerd Kev) applied digits to the
keyboard and routed the information from some kind of brain
(presumably), thusly:


i did this a long long time ago with an old car.

as i remember it i needed to use the relay contact to break the
exiting wire and on changeover apply power briefly to the motor.

then quickly release the relay and reclose the original wiring to
allow the homing and stopping circuit to function.

if you just apply power to the original wiper wire it blew a fuse when
the wiper hit home.


Hmmm, intersting thanks Reese. Hopefully mine's a bit simpler and I can just
use that module. My car isn't *that* old (a 1985 Honda City), most cars it's
age had intermittent. It's just that it's the 'E' model (for economy) and
they're really no frills - which is part of the reason I like it, it's easy
to maintain.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

Quote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by
feedback there are no instructions with it.) I'm looking to wire
this into the first setting on the wiper switch and have it pulse
power say every ten seconds for two seconds or so then swap the
second wiper setting from fast to normal (I've only used fast once
in 10 years so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking

--
__ __
#_ < |\| |< _#


~misfit~
Guest

Sun Sep 18, 2016 2:37 pm   



Once upon a time on usenet Computer Nerd Kev wrote:
Quote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there are no instructions with it.) I'm looking to wire this into
the first setting on the wiper switch and have it pulse power say
every ten seconds for two seconds or so then swap the second wiper
setting from fast to normal (I've only used fast once in 10 years
so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking


Thanks Kev. Hopefully it'll load for you soon and you can see if you think
it'll do the job (I don't mind if I have to do two strokes per intermittent
if I can't set the delay short enough for one).

As it's quite cheap I've ordered it anyway and am hoping ... I was wondering
if anyone could give me an opinion while I wait the weeks to get it
delivered. ;)

(Also I hope that my back's up to the task of fitting it. Last time I needed
to do something under the dash I gave up. However, as usual my mind keeps on
writing cheques that my back can't cash. :-/ )
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

Computer Nerd Kev
Guest

Mon Sep 19, 2016 1:21 am   



~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Quote:
Once upon a time on usenet Computer Nerd Kev wrote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there are no instructions with it.) I'm looking to wire this into
the first setting on the wiper switch and have it pulse power say
every ten seconds for two seconds or so then swap the second wiper
setting from fast to normal (I've only used fast once in 10 years
so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking

Thanks Kev. Hopefully it'll load for you soon and you can see if you think
it'll do the job (I don't mind if I have to do two strokes per intermittent
if I can't set the delay short enough for one).


It turns out Aliexpress have broken compatibility with the weird
browser I run on the PC I use for posting to Usenet. On another
computer I've now seen the listing.

It should work. Looking closely at one of the pictures, I was
also to figure out that the chip they're using is a 4541B. They
comment that by using this they have far better timing performance
than with a standard 555, but if they're using that 100uF
Electrolytic capacitor for the timing circuit, changes in its
characteristics over time and temperature variations will swamp
any advantage in stability offered by the 4541. Anyway that
doesn't matter for a windscreen wiper application, I'm just
wondering why they didn't use a 7555 as I can't see how they're
using any of the 4541's special features.

I'm surprised how good my Chinglish has become (which is funny
because when I'm in the city, I can't understand a thing they say
in person). When power is applied the relay turns on for a time
set by one of the trimpots, after that it turns off and waits for
a time set by the other trimpot to turn on again and restart. They
don't say which trimpot sets which time delay, or what the
mysterious jumper next to the relay (marked S1) does.

Indeed you might have to put up with two wiper strokes if you can't
get the first time setting close enough to the minimum.

Quote:
As it's quite cheap I've ordered it anyway and am hoping ... I was wondering
if anyone could give me an opinion while I wait the weeks to get it
delivered. Wink


Oh look, I can see you in the transaction history. An A3 member,
I think you're above me! :)

Quote:
(Also I hope that my back's up to the task of fitting it. Last time I needed
to do something under the dash I gave up. However, as usual my mind keeps on
writing cheques that my back can't cash. :-/ )


I fear for my own back when doing things under the car dash and
there isn't even anything wrong with it. :)

--
__ __
#_ < |\| |< _#

Benderthe.evilrobot
Guest

Mon Sep 19, 2016 2:57 am   



"Computer Nerd Kev" <not_at_telling.you.invalid> wrote in message
news:nrl6hu$1au7$1_at_gioia.aioe.org...
Quote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been trying to
sort something out for a while now. I'm not competent enough to make my
own
module with a 555 and perfboard and, unlike back in the 1980s,
fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there
are no instructions with it.) I'm looking to wire this into the first
setting on the wiper switch and have it pulse power say every ten seconds
for two seconds or so then swap the second wiper setting from fast to
normal
(I've only used fast once in 10 years so, then only for 30 seconds I
won't
miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.


They always used to have a curved track and wiper contact that kept the
motor powered anywhere other than the resting position - no matter where it
was when you switched it off, it always found its way home.

Computer Nerd Kev
Guest

Tue Sep 20, 2016 5:00 am   



On 20 Sep 2016, ~misfit~ wrote:

Quote:
Once upon a time on usenet Benderthe.evilrobot wrote:
"Computer Nerd Kev" <not_at_telling.you.invalid> wrote in
message news:nrl6hu$1au7$1_at_gioia.aioe.org...

I can't convince that page to load (probably a temporary
problem with their server), however one thing to consider
will be the system used to bring the wiper back to its
parked position.

They always used to have a curved track and wiper contact
that kept the motor powered anywhere other than the
resting position - no matter where it was when you
switched it off, it always found its way home.

Yep, however there seems to be a bit of overlap cos if you
switch it off just as it starts its stroke then it often
stops a couple inches above the rest position.


As noted in the link I posted, the park switch is open circuit
for for about 10% of the cycle. So it will stop close to the
beginning of that park position range, and if you don't apply
power for long enough to get out of it, the park switch won't
provide power for the motor to go around and return to the
start again.

--
__ __
#_ < |\| |< _#

~misfit~
Guest

Tue Sep 20, 2016 6:57 am   



Once upon a time on usenet Computer Nerd Kev wrote:
Quote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Once upon a time on usenet Computer Nerd Kev wrote:
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by
feedback there are no instructions with it.) I'm looking to wire
this into the first setting on the wiper switch and have it pulse
power say every ten seconds for two seconds or so then swap the
second wiper setting from fast to normal (I've only used fast once
in 10 years so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem
with their server), however one thing to consider will be the
system used to bring the wiper back to its parked position.

Ideally you would want to use the wiper parking arrangement already
in the wiper motor, described here (though I've seen wiper motors
with fewer pins):
http://www.scary-terry.com/wipmtr/wipmtr2.htm

When the intermittent mode is turned on, you will want the wiper
motor "Low Speed" terminal to be connected to one of the "Parking
Switch" terminals, with the other "Parking Switch" terminal going
to positive. Your timer device should be connected to provide a
short pulse to "Low Speed" (enough to move it so that the
Parking Switch becomes closed again), then wait the desired
period before the next wipe cycle is required (plus the time to
be taken by the wiper in completing the current stroke) before
pulsing again.

I've got no idea whether the device linked to can do that because
I can't see it.

Of course the problem with getting the device to return the wiper
to the park position by timing the period during which the motor
is powered (and not needing to connect up the Parking Switch) is
that if the wiper is not in the park position when it starts up
(such as when shifting from constant wipe to intermittent
while the wiper is in mid-stroke), it will finish each cycle
with the wiper located on the windscreen wherever it was
when intermittent was enabled, which might be right where
you want to be looking

Thanks Kev. Hopefully it'll load for you soon and you can see if you
think it'll do the job (I don't mind if I have to do two strokes per
intermittent if I can't set the delay short enough for one).

It turns out Aliexpress have broken compatibility with the weird
browser I run on the PC I use for posting to Usenet. On another
computer I've now seen the listing.

It should work. Looking closely at one of the pictures, I was
also to figure out that the chip they're using is a 4541B. They
comment that by using this they have far better timing performance
than with a standard 555, but if they're using that 100uF
Electrolytic capacitor for the timing circuit, changes in its
characteristics over time and temperature variations will swamp
any advantage in stability offered by the 4541. Anyway that
doesn't matter for a windscreen wiper application, I'm just
wondering why they didn't use a 7555 as I can't see how they're
using any of the 4541's special features.

I'm surprised how good my Chinglish has become (which is funny
because when I'm in the city, I can't understand a thing they say
in person). When power is applied the relay turns on for a time
set by one of the trimpots, after that it turns off and waits for
a time set by the other trimpot to turn on again and restart. They
don't say which trimpot sets which time delay, or what the
mysterious jumper next to the relay (marked S1) does.

Indeed you might have to put up with two wiper strokes if you can't
get the first time setting close enough to the minimum.


Thanks for checking that out fo rme Kev. When I fit it I'l leave it so that
it's accessable at least for the first few uses.

Quote:
As it's quite cheap I've ordered it anyway and am hoping ... I was
wondering if anyone could give me an opinion while I wait the weeks
to get it delivered. ;)

Oh look, I can see you in the transaction history. An A3 member,
I think you're above me! Smile


Heh! I've been rebuilding a couple power amps so bought some hardware for
that job as well as a couple kits, a breadboard and some packs of resistors,
capacitors, diodes etc. I've decided to try to learn more by 'doing'.

Quote:
(Also I hope that my back's up to the task of fitting it. Last time
I needed to do something under the dash I gave up. However, as usual
my mind keeps on writing cheques that my back can't cash. :-/ )

I fear for my own back when doing things under the car dash and
there isn't even anything wrong with it. Smile


Heh, I remeber that feeling from pre-injury. Everything's built-in and not
meant to be worked on.

Cheers,
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

~misfit~
Guest

Tue Sep 20, 2016 6:58 am   



Once upon a time on usenet Benderthe.evilrobot wrote:
Quote:
"Computer Nerd Kev" <not_at_telling.you.invalid> wrote in message
news:nrl6hu$1au7$1_at_gioia.aioe.org...
~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own
module with a 555 and perfboard and, unlike back in the 1980s,
fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there
are no instructions with it.) I'm looking to wire this into the
first setting on the wiper switch and have it pulse power say every
ten seconds for two seconds or so then swap the second wiper
setting from fast to normal
(I've only used fast once in 10 years so, then only for 30 seconds I
won't
miss it.)

This is exactly what I want yeah? <fingers crossed

I can't convince that page to load (probably a temporary problem with
their server), however one thing to consider will be the system used
to bring the wiper back to its parked position.

They always used to have a curved track and wiper contact that kept
the motor powered anywhere other than the resting position - no
matter where it was when you switched it off, it always found its way
home.


Yep, however there seems to be a bit of overlap cos if you switch it off
just as it starts its stroke then it often stops a couple inches above the
rest position.
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

~misfit~
Guest

Tue Sep 20, 2016 1:49 pm   



Once upon a time on usenet Computer Nerd Kev wrote:
Quote:
On 20 Sep 2016, ~misfit~ wrote:

Once upon a time on usenet Benderthe.evilrobot wrote:
"Computer Nerd Kev" <not_at_telling.you.invalid> wrote in
message news:nrl6hu$1au7$1_at_gioia.aioe.org...

I can't convince that page to load (probably a temporary
problem with their server), however one thing to consider
will be the system used to bring the wiper back to its
parked position.

They always used to have a curved track and wiper contact
that kept the motor powered anywhere other than the
resting position - no matter where it was when you
switched it off, it always found its way home.

Yep, however there seems to be a bit of overlap cos if you
switch it off just as it starts its stroke then it often
stops a couple inches above the rest position.

As noted in the link I posted, the park switch is open circuit
for for about 10% of the cycle. So it will stop close to the
beginning of that park position range, and if you don't apply
power for long enough to get out of it, the park switch won't
provide power for the motor to go around and return to the
start again.


Thanks. Yeah I had a quick look at that link then decided it wasn't going to
help me much as I'm hoping to wire the controller into the switch end of the
wires. I'm aware of the parking arrangement as for the last few years I
haven't had intermittent (as well as the years before it became commonplace)
and so have a habit of flicking the switch on, then off again manually as
soon as the wipers have moved through about 15 dgerees of their ~90 degree
travel.

Cheers,
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

Jasen Betts
Guest

Tue Sep 20, 2016 3:29 pm   



On 2016-09-18, ~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Quote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been trying to
sort something out for a while now. I'm not competent enough to make my own
module with a 555 and perfboard and, unlike back in the 1980s, fit-your-own
aftermarket intermittent wiper modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback there
are no instructions with it.) I'm looking to wire this into the first
setting on the wiper switch and have it pulse power say every ten seconds
for two seconds or so then swap the second wiper setting from fast to normal
(I've only used fast once in 10 years so, then only for 30 seconds I won't
miss it.)

This is exactly what I want yeah? <fingers crossed


Put the switch of this device in parallel with the existing wiper
parking switch. and set the on time long enough to get the wiper going
and the off time to whatever, eg: 15 seconds.

If your wipers don't self-park you'll have to arrange that first.

--
This email has not been checked by half-arsed antivirus software

~misfit~
Guest

Wed Sep 21, 2016 7:16 am   



Once upon a time on usenet Jasen Betts wrote:
Quote:
On 2016-09-18, ~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there are no instructions with it.) I'm looking to wire this into
the first setting on the wiper switch and have it pulse power say
every ten seconds for two seconds or so then swap the second wiper
setting from fast to normal (I've only used fast once in 10 years
so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

Put the switch of this device in parallel with the existing wiper
parking switch. and set the on time long enough to get the wiper going
and the off time to whatever, eg: 15 seconds.


Thanks, yeah that's a thought, leave the existing switch as-is and just use
this to feed power to the 'low speed out' side of the switch, using it's own
switch. (I can't get near the wiper motor proper, at least without major
surgery. Best I can tell it's fitted into the 'well' below the windscreen
before the top part is welded on.) I have been considering splicing this
into the first stage of the switch then changing the second stage to normal
speed continuous and doing away with the 'fast' speed. However if I do that
I might need a diode on the output so it's not back-fed during continuous
use - if that's likely to bother it - probably not as it'll be going into an
open relay.

Actually the use of a diode (or two) might be handy if I can't get the
interval short enough to do a one wipe cycle. The voltage drop might slow
the motor enough ... (Thinking out loud.)

> If your wipers don't self-park you'll have to arrange that first.

They do that or I wouldn't even be considering this project.

Cheers,
--
Shaun.

"Humans will have advanced a long, long way when religious belief has a cozy
little classification in the DSM*."
David Melville (in r.a.s.f1)
(*Diagnostic and Statistical Manual of Mental Disorders)

F Murtz
Guest

Wed Sep 21, 2016 7:30 am   



~misfit~ wrote:
Quote:
Once upon a time on usenet Jasen Betts wrote:
On 2016-09-18, ~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Hi group.

My car doesn't have an intermittent wiper setting and I've been
trying to sort something out for a while now. I'm not competent
enough to make my own module with a 555 and perfboard and, unlike
back in the 1980s, fit-your-own aftermarket intermittent wiper
modules aren't readily available.

So I'm thinking that this might do the trick;
http://www.aliexpress.com/item/1-PC-12V-Cycle-Delay-Module-Cycle-Relay-Switch-Relay-Module-Timing-Chip-ControlCycle-Delay-Module/32348079007.html

Am I right? (I'm crap at deciphering Chinglish and going by feedback
there are no instructions with it.) I'm looking to wire this into
the first setting on the wiper switch and have it pulse power say
every ten seconds for two seconds or so then swap the second wiper
setting from fast to normal (I've only used fast once in 10 years
so, then only for 30 seconds I won't miss it.)

This is exactly what I want yeah? <fingers crossed

Put the switch of this device in parallel with the existing wiper
parking switch. and set the on time long enough to get the wiper going
and the off time to whatever, eg: 15 seconds.

Thanks, yeah that's a thought, leave the existing switch as-is and just use
this to feed power to the 'low speed out' side of the switch, using it's own
switch. (I can't get near the wiper motor proper, at least without major
surgery. Best I can tell it's fitted into the 'well' below the windscreen
before the top part is welded on.)


It is highly unlikely that is in a welded in space, it would be able to
be removed,even if difficult, without cutting any body.


I have been considering splicing this
Quote:
into the first stage of the switch then changing the second stage to normal
speed continuous and doing away with the 'fast' speed. However if I do that
I might need a diode on the output so it's not back-fed during continuous
use - if that's likely to bother it - probably not as it'll be going into an
open relay.

Actually the use of a diode (or two) might be handy if I can't get the
interval short enough to do a one wipe cycle. The voltage drop might slow
the motor enough ... (Thinking out loud.)

If your wipers don't self-park you'll have to arrange that first.

They do that or I wouldn't even be considering this project.

Cheers,


Computer Nerd Kev
Guest

Thu Sep 22, 2016 1:00 am   



~misfit~ <shaun.at.pukekohe_at_gmail.com> wrote:
Quote:
Once upon a time on usenet Jasen Betts wrote:

Put the switch of this device in parallel with the existing wiper
parking switch. and set the on time long enough to get the wiper going
and the off time to whatever, eg: 15 seconds.

Thanks, yeah that's a thought, leave the existing switch as-is and just use
this to feed power to the 'low speed out' side of the switch, using it's own
switch. (I can't get near the wiper motor proper, at least without major
surgery. Best I can tell it's fitted into the 'well' below the windscreen
before the top part is welded on.)


That's a shame, on some vehicles they're about the easiest part to
get to.

Quote:
I have been considering splicing this
into the first stage of the switch then changing the second stage to normal
speed continuous and doing away with the 'fast' speed. However if I do that
I might need a diode on the output so it's not back-fed during continuous
use - if that's likely to bother it - probably not as it'll be going into an
open relay.


Exactly. An open relay won't be bothered by it at all. Just make
sure you wire the power connection on the relay to a constantly
active positive supply, not the power from the low speed motor
line. otherwise you might power the intermittent circuit even when in
continuous wipe mode (not that this will cause any problem except
unnecessary wear on the relay). Actually this will only be a problem
if the relay wired in the "normally closed" position, I don't have
time to check whether you'll need to wire it up like that or not
to get it to begin stroke as soon as the intermittent mode is turned
on.

Quote:
Actually the use of a diode (or two) might be handy if I can't get the
interval short enough to do a one wipe cycle. The voltage drop might slow
the motor enough ... (Thinking out loud.)


Not likely. A bunch of diodes in series might make enough of a
difference to the motor speed, but this will reduce the torque
of the motor as well, and generally be a rather poor way of
solving the problem.

--
__ __
#_ < |\| |< _#

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