Arduino code example for Mikroe C-meter click

c-meter.ino

// https://electronza.com/mikroe-2376-arduino-uno-capacitance/

// C-meter click is installed in socket #1
// of Arduino Uno click shield
// Pulses will be applied on pin D2
int pin = 2;
// We compute on float
float period;
float Cx;
 
void setup()
{
  Serial.begin(9600);
  pinMode(pin, INPUT);
}
 
void loop()
{
  period = 0;
  // We compute the average of four measurements
  // one of the reasons I choose float
  Serial.println("Measurements");
  period += pulseIn(pin, HIGH);
  period += pulseIn(pin, LOW);
  period += pulseIn(pin, HIGH);
  period += pulseIn(pin, LOW);;
  period += pulseIn(pin, HIGH);
  period += pulseIn(pin, LOW);
  period += pulseIn(pin, HIGH);
  period += pulseIn(pin, LOW);
  // We divide only by four, as the above code measures 
  // Th and Tl separately
  // and one period T = Th + Tl
  period = period / 4;
  Serial.print("Period is: ");
  Serial.println(period*1000);
  Serial.print("Frequency is: ");
  Serial.print(1000000/period);
  Serial.println("kHz");  
  Serial.println("");    
  Cx= period * 1000 / 77816;
  Serial.print("Capacity is: ");
  Serial.print(Cx);
  Serial.println(" uF");
  Serial.println("");   
  delay(1000);
}