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ocrdu
ocrdu
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there's 5vThere are 5 V and 3.3v3 V relays too. usingUsing one of those would be much more efficient as you could use just a 5v psu5 V PSU and the only conversion needed will be the one to make 3v33.3 V for the esp.ESP; way better than using a 12v psu12 V PSU just for the 12v12 V relay and wasting more than half the energy in everythingeverywhere else.

there's 5v and 3.3v relays too. using one of those would be much more efficient as you could use just a 5v psu and the only conversion needed will be the one to make 3v3 for the esp. way better than using a 12v psu just for the 12v relay and wasting more than half the energy in everything else.

There are 5 V and 3.3 V relays too. Using one of those would be much more efficient as you could use just a 5 V PSU and the only conversion needed will be the one to make 3.3 V for the ESP; way better than using a 12 V PSU just for the 12 V relay and wasting more than half the energy everywhere else.

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bigubr
bigubr
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there's 5v and 3.3v relays too. using one of those would be much more efficient as you could use just a 5v psu and the only conversion needed will be the one to make 3v3 for the esp. way better than using a 12v psu just for the 12v relay and wasting more than half the energy in everything else.