[jitendrac]

I recommend you to start from base, start with learning how transistor, resistor, coil/inductors, capacitor works, then jump to logical side of circuit And, Or, Not, Xor gates etc.

Lastly you should learn about mosfets, relays, basic non-programmable circuit component s etc.

Once you have known how underlying things works, there are many youtubers who regularly posts about arduino, Raspberry pi, robotics and what not.

I started interest in 2019, as I already knew basics and covid lockdown gave me enough time to learn about it.