5 Pin Relay


hi all, i´m trying make switch current voltage relay.
for first, doing switch on led (better start basics) bought 2 relays, 1 5v , other 12v test them.
all references saw on internet, forums, fritzing , everywhere, relays different mine, in pin numbers , position, dont figure how wire it; these have 5 pins

i following simple tutorial (in spanish, sorry, diagrams clear understand, easyest found, in fritzing image think missing 5v wire breadboard) :
http://hardware-hackingmx.com/2013/07/26/leccion-17-arduino-utilizando-relevadores/

any relay expert can me? think burned 5v 1 already, want test other 1 properly
thank you¡ :)



that website nonsense...

you must use transistor (or mosfet) switch relay, , __must__ have free=wheel diode
to prevent inductive kickback destroying transistor , arduino.

the arduino playground explains how this.

the diagram post shows how relay wired internally, can check a
multimeter.


Arduino Forum > Using Arduino > General Electronics > 5 Pin Relay


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