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Electronics for idiots

SpiderPin

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Joined
Jun 1, 2021
Messages
628
Location
London
Hi all - working on a little mod and I've finished the 3d modelling. I'd like to put an LED inside but I haven't done too much work with electronics. Does anyone have any recommendations for an idiots guide to electronics - it's as simple as whether I need a capacitor, how to use crocodile clips to tap in to GI, can I use a 12v LED with a 5V power supply etc...

Appreciate any help!
 
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Hi all - working on a little mod and I've finished the 3d modelling. I'd like to put an LED inside but I haven't done too much work with electronics. Does anyone have any recommendations for an idiots guide to electronics - it's as simple as whether I need a capacitor, how to use crocodile clips to tap in to GI, can I use a 12v LED with a 5V power supply etc...

Appreciate any help!
No, but.....

...can you get a gi led bulb and mod that to do what you want, then get one of those great connectors from comet....?

I'll find a link...

 
No, but.....

...can you get a gi led bulb and mod that to do what you want, then get one of those great connectors from comet....?

I'll find a link...

Thanks for that - they look great.
My original idea was to use something like this (https://www.amazon.co.uk/gp/product/B097JVZ2FL/ref=ox_sc_act_title_1?smid=A2S5M7PC3HNDMF&psc=1) in an early version to get the sculpt correct before introducing an arduino nano to control a more complicated matrix.
So can I check - a breadboard with a 5V supply would not be able to be used as a testing set-up for a 12V LED? I just assumed it would be dimmer... maybe I'm the dimmer of the two!
 
No probs. Those LEDs are DC, so unlikely to work on the GI power supply. They also wont light below 9v so not what you want.

You can run lights on a Arduino board with a separate power supply really easy, however (as I have found) there is a big step up when you want interactivity with the game. For this you want to keep the LEDs and the game separate unless you know exactly what you are doing. You can risk blowing your boards.

If you can get the LEDs running from GI or other insert output using a comet you massively reduce risk to the pin and also reduce complexity.

There are some guys on pinside selling cheap circuit boards that allow you to monitor the machines switch matrix on an Arduino and then control LEDs from that. That works out just under £100 and looks great fun. I bottled it at this point as it started to get expensive. ;)
 
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No probs. Those LEDs are DC, so unlikely to work on the GI power supply. They also wong light below 9v so not what you want.

You can run lights on a Arduino board with a separate power supply really easy, however (as I have found) there is a big step up when you want interactivity with the game. For this you want to keep the LEDs and the game separate unless you know exactly what you are doing. You can risk blowing your boards.

If you can get the LEDs running from GI or other insert output using a comet you massively reduce risk to the pin and also reduce complexity.

There are some guys on inside selling cheap circuit boards that allow you to monitor the machines switch matrix on an Arduino and then control LEDs from that. That works out just under £100 and looks great fun. I bottled it at this point as it started to get expensive. ;)
Following - thanks! Going to order the Comet stuff and see if I can get the basic system working before adding an Arduino. Think I'm, just going to clip into the GI which is simple enough for me to understand and shouldn't brick my lovely pinball machine!
 
Ahh, so I take everything back, if your GI is 12 DC, the Amazon LEDs would work....but.. then it's about how much extra current you can draw before blowing the fuses. The more LEDs, the greater the current draw, the closer to blowing a fuse.

I would expect you would be fine with 2 bulbs, but if a fuse blew, then you may need to revise ;)

No great risk there
 
Ahh, so I take everything back, if your GI is 12 DC, the Amazon LEDs would work....but.. then it's about how much extra current you can draw before blowing the fuses. The more LEDs, the greater the current draw, the closer to blowing a fuse.

I would expect you would be fine with 2 bulbs, but if a fuse blew, then you may need to revise ;)

No great risk there
No worries! Think I'm going to stick with Comet to be honest as it just seems easier. Would only be an extra LED so would be surprised if it blows. Need to tap in to GI as I want it to flash and dim with the GI during song modes for GnR so this seems perfect for me.
 
No worries! Think I'm going to stick with Comet to be honest as it just seems easier. Would only be an extra LED so would be surprised if it blows. Need to tap in to GI as I want it to flash and dim with the GI during song modes for GnR so this seems perfect for me.
Nicely done, 👍👍
 
We stock a wide range of comets and what ever we don’t have we can get in fast turnaround hassle free ordering
Had a look at your site and you've got exactly what I need! Will order soon.
 
Not wanting to harm anyones business but if you just want one Comet croc connector and a lamp you can have that from me - I am in Bourne End west of London.
 
Not wanting to harm anyones business but if you just want one Comet croc connector and a lamp you can have that from me - I am in Bourne End west of London.
Thank you so much for the offer but I’ve been meaning to grab a few bits from Dave anyway so will just tack these onto my order and save you the hassle!
 
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