Hi all - a newbie question.
Is it possible to create a circuit, using cheap components only, whereby a led would flash with a frequency in proportion to the power consumption of an AC power circuit?
I was thinking of this as a way to modify many extension sockets as a way of isolating and coupling to a single microcontroller which would count the pulses and calibrate to measure power usage in a house.
I've seen complex microcontroller circuits to measure current and voltage and multiply the two in circuit - just thought this way might be more cost efficient and more isolated than some ive seen.
Any ideas?
Is it possible to create a circuit, using cheap components only, whereby a led would flash with a frequency in proportion to the power consumption of an AC power circuit?
I was thinking of this as a way to modify many extension sockets as a way of isolating and coupling to a single microcontroller which would count the pulses and calibrate to measure power usage in a house.
I've seen complex microcontroller circuits to measure current and voltage and multiply the two in circuit - just thought this way might be more cost efficient and more isolated than some ive seen.
Any ideas?