Warpspeed
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Okay, so I'm going to run this of a 5V supply will I need a resistor?
What pins are +/- as i cant find the answer :thinker:
No resistor required if you run a 5v relay off 5v.
These latching relays have a permanent magnet to hold the relay in either condition when neither coil is energised. That stops it flapping about.
It is important to energise the coils in a direction that works with the internal magnet, not fight against it. So the coils are marked + and -
It will probably work either way, but it will work much better when the coils are connected the right way around.