problem while reading/writing

Replies to This Discussion

Permalink Reply by Andy Payne on January 24, 2012 at 6:00am

Hi Phillip,

Thanks for attaching the image.  Since I can see that the port is open, but that the Mega Read component has an error, my first guess would be whether or not you have the Mega Firmata properly uploaded to your board?  Is it possible you loaded the Uno Firmata instead? The Uno and Mega components are looking for the data to be properly formatted when it goes and reads from the port (the firmata usually handles this)... so if the data doesn't match then it will usually throw an error.  Could you check to make sure you've got the right firmata installed.

-Andy

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Permalink Reply by KieshaEFrederick on July 20, 2026 at 7:27am

Prüfe zuerst, ob der richtige COM Port ausgewählt ist und ob die Baudrate auf beiden Seiten identisch eingestellt wurde. Oft liegt der Fehler genau dort. Dudespin Casino Erfahrungen habe ich eher zufällig einmal gelesen.

Permalink Reply by Scarlett Whiddon on July 23, 2026 at 11:31pm

Reading and writing issues are often caused by COM port settings, firmware compatibility, or timing conflicts between data transfers. Testing each function independently before combining them usually makes troubleshooting much easier. Embedded hardware projects using HS108P-J also benefit from verifying communication step by step before expanding functionality.