hi, I am doing a project involving an avr mcu and I'm supposed to measure ac voltage, current. The current is measured using a C.T which should be safe, while my problem is measuring the AC voltage.
1. How should I isolate it? (I stepped down the 240V to around 2.4V)
2. Does AVR mcu adc measure AC voltage/current(stepped down) efficiently? 0-5VAC 0-200mA How accurate is it? or should I use an external ADC?
1. How should I isolate it? (I stepped down the 240V to around 2.4V)
2. Does AVR mcu adc measure AC voltage/current(stepped down) efficiently? 0-5VAC 0-200mA How accurate is it? or should I use an external ADC?