Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.
This means either you are reading from the wrong port, or that the correct port is currently being used by another application. Check to see if some other software is currently occupying the port (your Palm desktop software, etc.) If you’re using Linux make sure that your current user has read/write access to the port.
