Coin door circuit

After a question was put to the VP fourms from ironspider regarding how to wire a coin door that Darfall pointed out that my solution with just putting a microswitch on the coin door would be sending a repeated signal via the Ipac to the ROM.

It worked well enough for me at the time, but there had to be a better way.

So I went on the hunt on a how-to and came across this -

http://www.indiabix.com/electronics-circuits/555-monostable-multivibrator/

(click on the start simulation now to start it then click on the H to simulate a opening of the coin door)

So it had to be done. It took only a couple of resistors, a couple of capacitors, either a transitor or a spare ULN2803 to drive any voltage relay of 5-15 volts and its done!

Check it out here in my first vid blog.

The circuit is pretty simple for anyone who has tinkered with any electronics, but for anyone else, I have posted on the HP and VP forums.

 

Zebulon from VP Forums has been designing a power interface board for the LEDwiz that a lot of us are using in out cabinets. The LEDwiz is good for about 500 mA per output but only a few watts in totall. It is quite easy to overload an output and then kill an entire driver chip, taking out 1/4 of your outputs. This interface board will take a LEDwiz output and electrically seperate it from out LED's, Contactors, etc so all the load is powered by the interface board, no the LEDwiz.

So I got a little sample pack in the mail :D



Took me two weeks to get around to soldeing one of the high power boards up (he has a few different boards, depending on the load your going to put on it) and retro fit it into my cab to drive my Crees at 700 mA.



I disconnected the LED outputs from the terminal strips and connected them to the interface board outputs. Then installed new wires from the terminals (from the LEDwiz outputs) and wired them into the inputs on the interface board. Easy!
To give it a decent test run, I downloaded the LEDwiz software from the GGG size and used the LumArua controller to turn on all the LED outputs. An hour later I came back to see how the mosfets were coping...... they were not even warm to touch!

The LED's look awesome at 700 mA which would have killed the LEDwiz if I had of tried so nice work Zebulon. This is just what my cabinet needed.