AC spanning meet module 230Vac

Netspanning meet module te gebruiken met b.v. een Arduino.

Type: ZMTP101B

Via deze link kunt u een voorbeeld filmpje zien. 

Sketch 

double sensorValue1 = 0;
	double sensorValue2 = 0;
	int crosscount = 0;
	int climb_flag = 0;
	int val[100];
	int max_v = 0;
	double VmaxD = 0;
	double VeffD = 0;
	double Veff = 0;
	void setup() {
	Serial.begin(9600);
	}
	void loop() {
	for ( int i = 0; i < 100; i++ ) {
	sensorValue1 = analogRead(A0);
	if (analogRead(A0) > 511) {
	val[i] = sensorValue1;
	}
	else {
	val[i] = 0;
	}
	delay(1);
	}
	max_v = 0;
	for ( int i = 0; i < 100; i++ )
	{
	if ( val[i] > max_v )
	{
	max_v = val[i];
	}
	val[i] = 0;
	}
	if (max_v != 0) {
	VmaxD = max_v;
	VeffD = VmaxD / sqrt(2);
	Veff = (((VeffD - 420.76) / -90.24) * -210.2) + 210.2;
	}
	else {
	Veff = 0;
	}
	Serial.print("Voltage: ");
	Serial.println(Veff);
	VmaxD = 0;
	delay(100);
	}