LED to GPIO without breadboard - Raspberry Pi Forums

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hello all,

firstly...am right in thinking gpio pins give power when pi on? want light 1 when pi on (i.e. light turns off after type halt pi still plugged in).

secondly, following set work:

female female jumper (one of these: http://www.ebay.co.uk/itm/171848457609?var=470780327431) 5v gpio pin to...
1 of these 68 ohm resistors http://www.ebay.co.uk/itm/301450274359 jumper to...
1 of these blue leds http://www.ebay.co.uk/itm/121101185943 jumper gnd pin?

(i don't want solder or glue pi, i'm planning on hot gun gluing else together)

:)

the 5v pin on when power present, it's not want.

use gpio can write program runs @ startup , turns on led, can detect if linux going shut down , turns off led.

it's ok not use breadboard. f-f jumper cables fine. have twist wires of led , resistor make circuit. check forward voltage of led. white , blue leds can not driven directly gpio need greater voltage turn on. if want use 1 of you'll need use transistor.


raspberrypi



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