What we want is to power up our module which runs on 3.3v 600 ma and a relay which triggers on 5v.
The power will be coming from home live line which will be 240v around.
So we need to design a smallest transformer which will be a step down transformer and it will convert 240v to 5v ac
And output current will be 1A.
We need it asap
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I guarantee my work. I have over 15 years of experience designing electronic circuits. I can have this circuit designed with low cost components that will work flawlessly for many years.