Now, I've already got numerous problems with my design. I didn't do the math and instead used the Java Circuit Simulator applet to complete the design. This of course resulted in a 5V input which I'm gonna have to figure out how to do. Should've probably used something smaller but as a result I've already purchased two relay switches with a 5V, 1A input for the coil.

Secondly I bought 4 2V LEDs and 10 10Ohm resistors.

Now I'll deal with the math and buy the extra components if I need to after I re-do the design but what bothers me is the little diagram beneath the Relay Switches that I got. They're 8-pin switches which immediately made me think that there are two switches contained with the the Relay itself. I'm probably just not going to use the second switch if it can't be switched seperately, which is fine for now. I'll replace the component later with the correct one. But what really confuses me is the bellow diagram on the switch. It just doesn't fit with the picture that I have of how a switch works in my mind.

The first two connectors (NOT shown) are clearly for the coil but I don't understand how the above becomes switches.

Doesn't anyone have an idea?

 

Do you have a manufacturer name and part number for the relays?
If so, try to find a datasheet for them.

 

Thanks. I'll do that. Unfortunately I left the relay at home. Guess I'll have to wait till tomorrow.

 

Now, I've already got numerous problems with my design. I didn't do the math and instead used the Java Circuit Simulator applet to complete the design. This of course resulted in a 5V input which I'm gonna have to figure out how to do. Should've probably used something smaller but as a result I've already purchased two relay switches with a 5V, 1A input for the coil.

Secondly I bought 4 2V LEDs and 10 10Ohm resistors...

I know this is not key to answering your question, but what are you trying to design? There may be more help people could give if you supplied more information.

 

I know this is not key to answering your question, but what are you trying to design? There may be more help people could give if you supplied more information.

I'm trying to build a little puzzle.

The concept is that there are 25 different buttons and 5 buttons have to be pressed in sequence to activate a magnetic unlocking mechanism. I personally understand that this would be extremely easy if I was using a pic chip and a grid layout for my buttons but since this is my first real circuit I decided to stick with some generic components instead.

So what happens in my circuit...

First of all, once the power is connected an led is lit. This LED must stay lit while power is supplied therefore I put it in it's own complete circuit.

Second, when the first button is pressed a relay switch is thrown after which the relay has to power itself to keep the switch thrown. (Momentary buttons are to be used). It will then power the second relay as well.

Now I imagine that this is where my problem comes in as for some reason the second relay only gets 2.5V. I imagine this is because once the relay switch powers itself and pumps power to the second switch the 5V is then split? Haven't figured out how to solve this problem yet... but I haven't really sat with the problem either. It works perfectly in my simulation.

I'll post the code here for the simulation.

Zip archive of simulation applet. (double-click on circuit.jar to run)

$ 1 5.0E-6 1.9265835257097934 77 5.0 50
178 608 176 608 256 0 1 0.2 0.1506738574746707 0.05 1000000.0 0.02 20.0
178 512 176 512 256 0 1 0.2 0.1506738574746707 0.05 1000000.0 0.02 20.0
178 704 176 704 256 0 1 0.2 0.16638935108151232 0.05 1000000.0 0.02 20.0
178 800 176 800 256 0 1 0.2 0.16638935108151232 0.05 1000000.0 0.02 20.0
178 896 176 896 256 0 1 0.2 0.15067385747467077 0.05 1000000.0 0.02 20.0
v 288 256 288 176 0 0 40.0 5.0 0.0 0.0 0.5
w 288 176 288 144 0
w 288 256 288 320 0
w 368 320 528 320 0
w 528 320 624 320 0
w 624 320 720 320 0
w 720 320 816 320 0
w 816 320 912 320 0
w 864 112 896 112 0
w 768 112 800 112 0
w 672 112 704 112 0
w 560 112 608 112 0
w 368 112 480 112 0
w 512 112 512 176 0
w 608 112 608 176 0
w 704 112 704 176 0
w 800 112 800 176 0
w 896 112 896 176 0
w 912 256 912 320 0
w 480 144 480 176 0
w 464 176 416 176 0
w 576 144 576 176 0
w 464 176 560 176 0
w 672 144 672 176 0
w 560 176 656 176 0
w 768 144 768 176 0
w 656 176 752 176 0
w 864 144 864 176 0
w 752 176 848 176 0
w 368 208 368 256 0
w 368 256 288 256 0
w 480 112 512 112 0
w 368 176 368 208 0
162 496 304 448 304 1 2.1024259 0.0 1.0 0.0
w 496 256 496 304 0
w 448 144 448 304 0
w 368 112 368 144 0
w 560 112 512 112 0
w 608 112 672 112 0
w 704 112 768 112 0
w 800 112 864 112 0
w 544 256 544 144 0
w 544 144 576 144 0
s 528 144 544 144 0 1 true
w 480 144 528 144 0
w 672 144 640 144 0
w 640 144 640 256 0
w 768 144 736 144 0
w 736 144 736 256 0
w 864 144 832 144 0
w 832 144 832 256 0
w 576 144 624 144 0
w 672 144 720 144 0
w 768 144 816 144 0
s 624 144 640 144 0 1 true
s 720 144 736 144 0 1 true
s 816 144 832 144 0 1 true
162 592 304 544 304 1 2.1024259 0.0 1.0 0.0
162 672 304 624 304 1 2.1024259 0.0 1.0 0.0
w 592 256 592 304 0
w 544 256 544 304 0
w 880 256 880 304 0
w 368 112 288 112 0
w 832 256 832 272 0
s 432 144 448 144 0 1 true
w 368 144 432 144 0
w 448 144 480 144 0
w 832 272 624 272 0
w 624 272 624 304 0
w 880 304 672 304 0
r 640 256 688 256 0 10.0
r 736 256 784 256 0 10.0
162 336 320 288 320 1 2.1024259 0.0 1.0 0.0
w 240 368 240 144 0
w 240 144 288 144 0
x 282 356 349 362 0 24 Power
w 288 144 288 112 0
s 368 176 416 176 0 0 true
w 240 368 368 368 0
w 368 368 368 320 0
150 592 400 592 512 0 3 5.0
w 496 304 496 400 0
w 592 304 592 400 0
w 672 304 672 400 0
w 368 320 336 320 0
w 672 400 608 400 0
w 496 400 576 400 0
w 432 512 368 512 0
w 368 512 368 256 0
r 432 512 592 512 0 5.0