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Why is my serial port not working on my computer?
Troubleshooting Serial (COM) Port Problems If the foot pedal of the WavPlayer does not respond, this may indicate a serial (COM) port problem. While most computers have a free serial (COM) port, the port is not always truly available.
What’s the problem with serial communication on Arduino?
The odd thing is if I increase the baud rate on the arduino and then use the arduin IDE serial monitor and send “Hello?” at the same baud rate, it works. Therefor it is more than likely that the error is on the computer end. I’ve attached the code the main thing to look at is the arduino Matrix Display 3.0 and the SerialClass and main.cpp.
Why are there odd characters on the serial terminal?
In my experience odd characters on the serial terminal are usually a timing issue. Something like not waiting long enough for characters to arrive or the serial read/write is being interrupted. The processor is running at 16MHz so it is many, many times faster than serial comms, as JohnInTx says, I usually fix this with delays.
Can a PS / 2 mouse be connected to a serial port?
A PS/2 mouse does not use communications port resources on your computer, so you should have no problems. If you have a PS/2 mouse, you may skip to step 4. A serial port mouse is often connected to COM1.
How can I test if my serial network is fixed?
In order to test whether the problem in your serial network is fixed, you can reproduce the communication between a COM port and a serial app or device. Serial Port Monitor will help you resend the exact same data to the required COM port so that you can review the reaction of your serial software or device. 1. Start or open a monitoring session;
What do you need to know about serial port monitor?
Serial Port Monitor is a professional utility that gives developers a centralized place to record and display the data going through all tested serial ports. The app is designed to log everything a COM port does during a monitoring session, so programmers don’t have to document all actions by hand.
How to know if a serial port is recognized by Windows?
1 Check to see which serial (COM) ports are recognized by Windows. Right-click on the “My Computer” icon on your desktop. 2 Modem COM port Usage. In the Device Manager shown above, click the ‘+’ next to Modem to view which modems are recognized by Windows. 3 See if you have a serial port mouse or a PS/2 mouse.
What do digital pins 0 and 1 do?
The digital pins 0 and 1 ARE used for serial communication. As long as you aren’t doing serial communication (including uploading sketches), you can use them for other purposes. That doesn’t sound like it’s true for you, though.