Running into issues with my Ardiuno Leonardo and a ZMPT101B. Currently using the demo sketch for voltage and current with current disabled as I only need voltage. When I upload the sketch it prints roughly the correct voltage (need to calibrate some more) ONCE and then drops down and prints similar random numbers.
Here is the code:
// EmonLibrary examples openenergymonitor.org, Licence GNU GPL V3
#include “EmonLib.h” // Include Emon Library
EnergyMonitor emon1; // Create an instance
emon1.voltage(3, 150.7, 1.7); // Voltage: input pin, calibration, phase_shift
// emon1.current(1, 111.1); // Current: input pin, calibration.
emon1.calcVI(20,2000); // Calculate all. No.of half wavelengths (crossings), time-out
emon1.serialprint(); // Print out all variables (realpower, apparent power, Vrms, Irms, power factor)
float realPower = emon1.realPower; //extract Real Power into variable
float apparentPower = emon1.apparentPower; //extract Apparent Power into variable
float powerFActor = emon1.powerFactor; //extract Power Factor into Variable
float supplyVoltage = emon1.Vrms; //extract Vrms into Variable
float Irms = emon1.Irms; //extract Irms into Variable
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