Jitter period at digital output

[Athanasius]

//#include <SPI.h>
#include <Controllino.h>

int T = 50;
void setup() {
//Controllino_RTC_init(0);
pinMode(CONTROLLINO_D9, OUTPUT);
}

void loop() {
digitalWrite(CONTROLLINO_D9, HIGH);
delay(T);
digitalWrite(CONTROLLINO_D9, LOW);
delay(T);
}

[Lukas]

Hi,

please note that the screw terminal digital outputs of CONTROLLINO MAXI are High Side switches. They are only connecting/disconnecting the terminal to/from supply voltage. Not ground. I think that this is the reason for your troubles.

Best regards,

Lukas