GY-63_MS5611/libraries/ACS712/examples/ACS712_detectFrequency/ACS712_detectFrequency.ino
2022-08-12 10:47:41 +02:00

46 lines
846 B
C++

//
// FILE: ACS712_detectFrequency.ino
// AUTHOR: Rob Tillaart
// PURPOSE: demo
// URL: https://github.com/RobTillaart/ACS712
#include "ACS712.h"
// Arduino UNO has 5.0 volt with a max ADC value of 1023 steps
// ACS712 5A uses 185 mV per A
// ACS712 20A uses 100 mV per A
// ACS712 30A uses 66 mV per A
ACS712 ACS(A0, 5.0, 1023, 100);
// ESP 32 example (might requires resistors to step down the logic voltage)
// ACS712 ACS(25, 3.3, 4095, 185);
uint32_t start, stop;
void setup()
{
Serial.begin(115200);
Serial.println(__FILE__);
}
void loop()
{
// e.g. detect 50 or 60 Hz sinus signal
// blocks on bad signals.
start = micros();
float frequency = ACS.detectFrequency(45);
stop = micros();
Serial.print(stop - start);
Serial.print("\t");
Serial.println(frequency, 1);
}
// -- END OF FILE --