simplest question ever

Thread Starter

Andy Spacie

Joined Sep 5, 2015
3
hi everyone, im totaly rubbish when it comes to electronics but im currently building a 2p machine (penny pusher) like they have in arcades. im wanting to put some leds in it ive purchased a 3 of those light bars from poundland (uk) it has 4 leds a switch and 1 resistor how can i conect them together to make them all run off one switch? (i can solder)
 

PeterCoxSmith

Joined Feb 23, 2015
148
wire them in series, leave 2 of the switches on and control them all from the third switch. Or you could just remove the 2 unnecessary switches. Peter
 

PeterCoxSmith

Joined Feb 23, 2015
148
you're going to convert something that looks like this:

upload_2015-9-5_23-13-13.png

into something like this:

upload_2015-9-5_23-13-53.png

keep the relationship between the + end of the batteries and the + end of the LEDs. And you need to keep the 3 resistors in series to ensure the current is correct.
 
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