Timing Problem xxx

[glv]

@mike_z

It is interesting that the Arduino ‘resets’ after the serial connection is established. How do you know that fact and what exactly is meant by reset? Does that mean the Arduino literally starts over?

The link in my referenced post is no longer valid…

I came across this:

Soft reset on arduino through starting serial comm

I also watch the status LEDs on the Arduino to observe this.

My hardware is a W10 PC and a USB connection (serial over USB) to to an Arduino MEGA 2560 R3.

Just adding this at end of setup worked on my end:
delay(1000);

Your code is sending serial data 60 fps:

draw() / Reference

frameRate() / Reference

With your code the Rx LED is ON all the time.

Try this on the Processing side:

Processing to Arduino Serial Library Example

I modified the existing “SimpleWrite” example to: save and check for the state of mouseOverRect() print state to console only writes serial data once a delay() to wait for Arduino to reset once connected to it; in my case, it is an Arduino Mega 2560 R3. I kept the spirit of the original example intact and left it as a “Simple Write” program. My edit of “SimpleWrite” example so it only sends data once: /** * Simple Write. * * Check if the mouse is over a rectangle and writes the status …

Processing only Tx when there is a state change (see code) and I see the RX light turn on and off only during this change.

:)