have probably 400-500 of those 1N4001,lol.
Matlab says you can drop 350 V with 500 1N4001 diodes. (FYI).
I looked at the order page and saw this:
"Output is voltage free & can be connected up to 10A load.Input voltage:DC12V.Stream with relay protection"
Im not blowing these by connecting them straight to the battery am I?
Out of a total of 10, only 1 continues to work, none of the others will ever trigger the relays.
Im not blowing these by connecting them straight to the battery am I?
Out of a total of 10, only 1 continues to work, none of the others will ever trigger the relays.
The LM555 TIMER IC can tolerate supply voltages up to 18V so there's plenty of margin between that and 13.8V so quite honestly, I have no idea what is going wrong but experience tells me that if someone blows up 9 out of 10 devices , thinking they are wiring them correctly , there's a pretty good chance they're mistaken.
So, here's the $64,000 question.
We know from your wiring diagram that SOME Of the modules were connected according to your posted schematic. But out of the 9 that went bad, were there ANY that you ONLY connected the power terminals
directly to the battery and nothing else ? (and used an ohm meter to check the relay contact position)
Is there any static where you are ? (pops and shocks when you touch something ?)
The 5 new ones I got I only connected the VCC and GND terminals straight to car battery, nothing else just as was suggested in a previous reply.
Since the car sat overnight, the battery was at 12.7v.
With doing just as above the one that works still works doing just that.
3-4 of them would buzz like a bunch of mad bees for 1 or 2 cycles then they never trigger the relay. some just never triggered.
Ive never had an issue blowing components like this so its really confusing me.
Static electricity isnt a problem here, never happens except when its cold outside and even then its rare.
But i also have the habit before touching electronics like this to touch some bare metal or something grounded before handling electronics.
Im careful not to touch any of the modules to any metal,no accidental wire touches.Ive been trying to be as careful as possible to rule that stuff out.
I found a couple vids and they are doing exactly what I am trying with no issue, only difference is the type of car.
I don't know what to tell you.
Bad batch ?
That would be my luck. If it werent for bad luck I wouldnt have any.
There is a reason I dont play the lottery...lol.
Guess only option is to try another vender.
I mean this is a fairly simple circuit.
I figure if I can wire up that display I showed and rewire an old joystick that had something around 100 wires and connections is it, I could handle 3 wires to a module, apparently not...lol.
I made this not long ago and its a mess of wires,buttons,pots,LED lighting and encoders. Labeling is printed on laserjet with polycarbonate cover to protect them and can be removed to change the label cards I made in photoshop.
Also forgot.
Thank you very much for all the help.
Now I will just decide what I want to do about this. If I do "ever" get it working I'll reply back.
Really Cool.
I made this back in '82 for the Los Angeles Museum of Fine Arts Contempory Art Council's Awards Banquet 'Tribute 82', in Paramount Studio's Sound Stage 13 (the one they filmed the first Star Trek movie in) .
Leonard Nimoy and William Shatner were guest speaker. The controller consists of about 35 LM555 Timer IC circuits that control the UFO landing and taking off special effect. The light rings are aluminum tubes welded together by the Lighting Designer Sam Salde (my boss).They range in size from 3 feet in diameter
way up in the distant corner to 30 feet in diameter (closest to camera). Each ring has 16 segments of neon
wired in opposing pairs to create 4 channels. The segments are numbered CW 1,2 3,4 1,2,3,4,1,2,3,4,1,2,3,4, with all like number outputs controlled by the same signal. So there are four control signals, ch-1 , ch-2, ch-3, ch4. The channels are sequenced sequentially CW for landing , CCW for taking off. Since like channels oppose each other on the ring it creates the POV illusion of rotation. If you set the speed pot for the :
ring-1: small ring to VERY VERY FAST and the
ring-2: next largest ring to VERY FAST , and the
ring-3: next largest to FAST and the
ring-4: next largest to MEDIUM
ring-5: next largest to MEDIUM SLOW
ring-6: largest ring to SLOW
the resulting special effect in a dark soundstage is that of a flying saucer landing.
The "Grand Entrance" was Leonard Nimoy and William Shatner leading all the guests down the ramp
to the tune of Star Wars with the flying saucer special effect running at full speed.
The photo , however was taken after the guests had eaten dinner and were dancing to live orchestra waltz
music so the rings are NOT being sequenced, and ALL rings are rotating at a graceful slow pace chosen to match the waltz music as close as possible.
It took 3 months to design the circuit and 3 days to a week to wire it up.
It worked perfectly on the first test at exactly 11:45am for the Fire Marshal inspection test. (which, BTW,
is a PASS/FAIL test. If the equipment does not work as advertised, the vendor is ordered to remove it from the premises without delay and no second chances are given for the test. That's Hollywood for you)
The controller can be set to reverse the flight direction and spin direction. This creates the effect of the saucer increasing spin speed as it takes off toward the distant smallest ring.
BTW-The water fountain in the lower left corner was also my controller. It controlled 48 water pumps to
create a dancing water fountain effect .
Wow, thats awesome.
Way above any of my skills.
Got your PM and done.
You'd be surprised.
Just imagine getting a book on Timer ICs and
spending 3-months building circuits and wiring them to the leds , pots and switches. In the end, it all comes down to wiring 10,000 points, one point at a time.
This is the book. (William Shatner autographed it at the event)
FYI- The link above is to the 13 Mb PDF free download of this book. (take it !)
Ive never really met anyone all that famous.
Thanks on the pdf link, I downloaded it...it might interest me since I like to tinker with all sorts of things.
