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How would you...............

P

PinkFloyd43

Jan 1, 1970
0
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....


Thanks!
 
R

RFI-EMI-GUY

Jan 1, 1970
0
PinkFloyd43 said:
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....


Thanks!

Use a small electric motor and flywheel mounted parallel to the ground.
Sharp movement left or right will create a small DC voltage to be
rectified (full wave) and used as your trigger. You will have to adjust
sensitivity to ignore turns.


--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P
 
Q

qrk

Jan 1, 1970
0
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....


Thanks!

Analog Devices motion sensors connected to an RPG. Easier to connect a
switch on your handlebars to the RPG launcher. If you aren't protected
against shrapnel, perhaps a photoflash unit to blind them into
submission.
 
I

ian field

Jan 1, 1970
0
John Larkin said:
I've always favored rocket launchers.

John

Those electric powered "gatling guns" do perfectly adequate damage to a car
without the blowback of shrapnel that a HE missile produces.
 
R

RFI-EMI-GUY

Jan 1, 1970
0
ian said:
Those electric powered "gatling guns" do perfectly adequate damage to a car
without the blowback of shrapnel that a HE missile produces.

And they look real cool spinning around even when they run out of ammo!

--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P
 
D

default

Jan 1, 1970
0
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....


Thanks!

If you have a good low beam halogen headlamp - by good I mean no or
low glare - it is virtually invisible during daylight. The damn
things are like movie projectors - well collimated beam with no
overshoot. I put a little 10 watt halogen about 2" below the main
beam and it is more visible because it isn't collimated.

I also 48 white 1300 mcd leds in a rectangular pattern below my
headlight - the drivers seem to pause longer trying to figure out what
it is and that seems to be keeping them from scaring me.

It is also a useful light for driving at night - the 10 degree beam
spread isn't annoying the oncoming traffic and makes a big difference
lighting the road 10-20 feet in front of the bike.

A trigger able xenon flash inside the headlight would probably work
too.

Headlight modulators are OK but not really noticeable enough in my
opinion.
 
W

w_tom

Jan 1, 1970
0
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....

Red is a wrong choice - a color harder to detect. Automobiles
designed by engineers (not by fashion designers) use orange (amber)
rear turn signals. Orange cuts through fog, smoke, rain, etc; and is
easier to see at dawn and dusk.

Sources of motion sensors include those $1 electronic pedometers or
game handles from Wii video games.
 
P

PinkFloyd43

Jan 1, 1970
0
BobW said:
Why don't you hook up a high-powered PA system, put a microphone in your
helmet, and just yell out "NO, NO!"

You're welcome, in advance.

Bob
Sorry, have quite a bit of backing, read $$$, for this project and
was hoping to have some answers that would not be high
school quality, well I will keep looking for a electronics guy that
can do a project like this.
 
I

ian field

Jan 1, 1970
0
PinkFloyd43 said:
Sorry, have quite a bit of backing, read $$$, for this project and
was hoping to have some answers that would not be high
school quality, well I will keep looking for a electronics guy that
can do a project like this.

Gimmicks like this have a nasty habit of becoming compulsory adding to the
riders costs.

The better solution has always been rider education - to look where they're
going because car drivers can't be arsed!
 
R

Rich Grise

Jan 1, 1970
0
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....

Well, you asked, "How would you..."

What I'd do is put a steady red LED on the back, and a steady
amber or yellow LED on the front, and just shake my head when
I wanted to draw attention - the movement will attract the eye
of the viewer.

But there's a caveat - if you're thinking of using it like a
turn signel, it will be backwards - i.e., when you're looking
to the right, the LED will be on the left, viewed from the back.

So maybe it's not that great an idea after all. Sigh. I've been
thinking about how to mount some LEDs on my bicycle, but I
wouldn't want them to blink or flash - that's too much like
"emergency". =:-O

Have Fun!
Rich
 
R

Rich Grise

Jan 1, 1970
0
And they look real cool spinning around even when they run out of ammo!

But I've found that the recoil really slows me down.[/QUOTE]

You just need to put it on a truck:

But it would be interesting to know how many pounds of thrust it develops.

Anybody remember "Terminator II" or "Predator"? They had guys holding
those things in their hands. I find that exceedingly implausible, even
for Ah-nold. ;-)

Cheers!
Rich

It's fascinating what shows up in the "Other selections" part:
 
W

w_tom

Jan 1, 1970
0
First, those are not hardware diagnostics. Those are Windows
diagnostics. It is an HP. That means the computer manufacturer was
more responsible - provided a comprehensive hardware diagnostics that
give numbers and detailed messages. If you don't post those numbers
and messages, then the few who can actually answer you question will
not post.

Only one disk drive computer controlled both drives. If either
drive is defective, then the one computer will report a failure. Is
the defect in drive two but you keep replacing drive one (because
drive one controls drive two)?

Second reason for failure are completely and always defective power
supply voltages. Completely defective power supply will boot a
computer. Then strange things happen once every month. Does that
sound like your computer? Sound means nothing. Again, you need
numbers. Voltage measurements are the only way to identify that
reason for a failure.

Heat is not a problem. Your computer must be in love when the room
is 100 degrees F. A computer that is failing in a 70 degree room does
not have a heat problem. It has a hardware problem. How to find a
completely defective machine? Operate it even in a 100 degree room.
If it fails, a hardware problem probably exists - another reason why
more responsible computer manufacturers provide comprehensive hardware
diagnostics.

Now, step back. Is your problem with hardware or software? Windows
does little to find hardware failures. Windows works around hardware
failures - does everything it can to ignore those problems. However
Windows also has system (event) logs so that months after a problem
occurs, then a hardware guy can identify the problem. What (exactly
letter by letter) does each failure message in those logs say?
 
J

JosephKK

Jan 1, 1970
0
Those electric powered "gatling guns" do perfectly adequate damage to a car
without the blowback of shrapnel that a HE missile produces.

Both are kind of HEAVY for riding around.
 
J

JosephKK

Jan 1, 1970
0
Gimmicks like this have a nasty habit of becoming compulsory adding to the
riders costs.

The better solution has always been rider education - to look where they're
going because car drivers can't be arsed!

Agreed. And i have been riding daily for about 30 years.
 
D

Dangerous Dave

Jan 1, 1970
0
PinkFloyd43 formulated on Monday :
Create a circuit with bright red LEDs that would attached
to the front and back of a motorcycle helmet that would
flash for x period of time when the operator moved their
head left to right, like saying NO, NO to a car about
ready to pull out in front on you....

Thanks!
 
I

ian field

Jan 1, 1970
0
JosephKK said:
Both are kind of HEAVY for riding around.

One of the Arab states that had a war with Israel had nifty little Russian
supplied anti-tank missile that was carried by infantry in a rucksack.
 
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