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gtitim

 posted on 18th Jan 09 at 20:53

by putting 12v in and testing after each component i should be able to see if i have burnt something out?

the theory is that when the inlet on my car alters, it sends a 12v signal to the ecu, lighting the circuit and the LEDs


Dan

 posted on 18th Jan 09 at 20:47

got a multi meter? test the circuit


gtitim

 posted on 18th Jan 09 at 20:45

yes - LED with short leg to -ve, diode with stripe to -ve, just think i must have burnt some of the diodes out with ham fisted soldering.


Dan

 posted on 18th Jan 09 at 20:42

diodes the correct way around? wired the led the correct way?


gtitim

 posted on 18th Jan 09 at 20:38

yes - or at least thats what i asked for in maplin. will have to order some more parts and try again i think


ed

 posted on 18th Jan 09 at 19:34

Did you use 12v LED's?


gtitim

 Icon depicting mood of post posted on 18th Jan 09 at 19:14

Need to make the following circuit work, but it wont:

12v +ve input - 12v LED - 1A diode -
12v +ve input - 12v LED - 1A diode -
12v +ve input - 12v LED - 1A diode - all 4 into common 2k resistor -ground
12v +ve input - 12v LED - 1A diode -

Wired it up but it didnt work when tested. Could i have blown the components when soldering by overheating?

Never built circuits before so struggling with it all.