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Topic: Power Source for Arduino UNO and 3 Relay Shield with 8 Relais (Read 353 times) previous topic - next topic

Zamundo

Hello everyone,

I ask your advice to power supply  simultaneously Arduino UNO and 3 relay shield with 8 relais like this:
http://www.amazon.it/COLEMETER-Modulo-Canali-Arduino-Elettronica/dp/B00E370JAC/ref=sr_1_2?ie=UTF8&qid=1421147302&sr=8-2&keywords=relay+8+arduino

If I understand well, Arduino needs (as optimum) 7 V, the cards need 5V.
(I specify that I will use at most 5 relays simultaneously)

I thought I would use this:
http://www.ebay.it/itm/ALIMENTATORE-TRASFORMATORE-220V-12V-2A-STABILIZZATO-PER-STRISCE-A-LED-/271269965180?pt=IT_Stanza&hash=item3f28f32d7c

And then reduce the voltage to 7 V and to 5 V with two of these:
http://www.ebay.it/itm/MODULO-CONVERTITORE-LM2596S-REGOLABILE-DC-DC-STEP-DOWN-ALIMENTATORE-ARDUINO-/281364071011?pt=Altro_Elettronica_e_Elettricit%C3%A0&hash=item41829b0263


What do you think?

Thank You very much

Alexander
Che Arduino sia con Voi !

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