RMS value of a waveform in Hindi (lecture-5)

The root mean square (RMS) value of a waveform is a measure of its effective or average power. For an AC (alternating current) waveform, the RMS value is the square root of the average of the squares of the instantaneous values over one complete cycle. The RMS value is particularly useful because it represents the equivalent DC (direct current) voltage or current that would produce the same amount of power as the AC waveform.

[@kamalpur4439]

Nodemcu relay not working always on relay. please provide solution

[@MaheshPawaskar]

If relay is having 5V rating, make sure that, it is getting 5v at input. Relay gives only 3.3V.
Simple solution is, use digital logic gate such as NOT, AND gates etc.

[@kamalpur4439]

@@MaheshPawaskar thanks