May 15, 2016 Try opening a serial monitor on any port that is showing and that might give you a clue as to whats happening on each port. You dont need a program in the IDE just hit the Serial Monitor button. Plug the Arduino into another USB port and see what changes in available ports. USB Serial on the Mac is a real melding of the very new and very old. If you have any trouble, just visit plugable.com/products/pl2303-db9/support to see existing FAQs for Plugable’s USB Serial adapter.
- I am not able to see the video of these tutorials. If I could it is really a good job
- Thank you, thank you a million times. You can't imagine how critical continued support of this project is to my software and my livelihood. Keep up the good work, and kudos.
- great software with big set of manufacturers
- When installed on 10.4.11 I get lots of corrupt and missing data.
- Here's a project that builds out-of-the-box on 10.7: https://github.com/hugovincent/osx-pl2303 (Adapt the load script if your output isn't in build/Release. Right click on the target .kext to 'show in Finder', to see where it ended up.)
When you troubleshoot issues with a serial device, there are some quick tests that you can complete to rule out potential problems. You can test to make sure that the following components are working correctly and are not the source of the issue:
- Serial cables
- Serial ports
- Serial devices
To test your setup components, try the following:
- Use the serial cable, serial port, and serial device in another setup to see if the problem is with the components or the setup.
- Use a different serial cable, serial port, and serial device in your setup to see if the problem persists. Ideally, you should test a component that you know works in another setup.
When you test your cables, it is recommended that you do the following:
- Test each cable individually.
- Use short cables when you are testing.
When you test the serial ports and serial device, it is recommended that you do the following:
- Press the Windows key + R, type devmgmt.msc, and press Enter to open Device Manager. Check to see if your device is listed under Ports (COM & LPT).
- Make sure that the COM port number is the correct number for the serial device and that the software being used to connect the computer to the serial device uses the correct COM port number.
- If you do not see the COM port number in Device Manager see this FAQ for PCI/PCIe expansion cards: https://www.startech.com/support/faqs/technical-support?topic=expansion-cards#pci-pcie-cannot-boot-os-or-detect-windows
or this FAQ for USB devices: https://www.startech.com/support/faqs/technical-support?topic=expansion-cards#usb-cannot-detect-windows - If the device is listed with an error, follow the instructions on the website to reinstall the drivers.
Note: Some serial devices work only if the COM port number is between a certain range. For example, COM1 to COM4.
Usb Serial Port Com4
- Perform a serial loopback test. See this FAQ on how to perform a RS-232 serial loopback test: http://www.startech.com/faq/serial_loopback_test_rs232_windows