Hello, i’m just getting started with this. I’m using a ESP32 to firstly calibrate my SCT. As my one has an internal burden (62ohms) i only needed to add 2 10k and one 10uf cap. When i put the clamp on a device consuming 30 watts i get irms1=0.24 when i turn the light off its 0.10. My ICAL is set to (double ICAL = 1.08;) When i put it to one of my mains and start my water kettle i get readings about 24.00. Do i just have to adjust ical?
i’m using 3.3v and GPIO35 on Wemos ESP32.
CT Turns 1800
Burden Resistor 62
double I_RATIO = (long double)CT_TURNS / CT_BURDEN_RESISTOR * 3.3 / 4096 * ICAL;