Joe,
Firstly try increasing the speed at which the Arduino sends serial information, so up the baud rate, say to 115200.
I have an idea that your pulses are being missed while the serial function is busy
Paul
Joe,
Firstly try increasing the speed at which the Arduino sends serial information, so up the baud rate, say to 115200.
I have an idea that your pulses are being missed while the serial function is busy
Paul