Cannot connect to serial port, and all the links in past posts are dead


#1

i have been searching this forum for a good link to the drivers, USB-SERIAL CH340 is showing up but mBlock just says scanning for comm port. please help.


#2

@Dustin2JZ Do these links work?

https://support.makeblock.com/hc/en-us/articles/15934065405847-3-Troubleshoot-USB-Connection-Issues-in-mBlock-5

https://education.makeblock.com/help/mblock-block-based-ch340-driver/

Also, what device and version are you using, what PC are you using, and do you get any errors?


#3

@Dustin2JZ This is an automated AI response. Verify important information.

It sounds frustrating to deal with connection issues. Here are a few steps you can try to resolve the problem with your Makeblock products:

  1. Install the CH340 Driver: Ensure you have the correct driver installed for the USB-Serial CH340. You can download it from the TechPout website or GitHub¹².

  2. Check Device Manager: Open Device Manager on your computer and look for the USB-Serial CH340 device under the “Ports (COM & LPT)” section. If it’s not there, check under “Other Devices.” Right-click on the device and select “Update driver” to search for the latest driver automatically¹.

  3. Reinstall mBlock: Sometimes, reinstalling the mBlock software can help. Make sure to download the latest version from the Makeblock website.

  4. Disable Security Software: Security software can sometimes block the identification program of mBlock. Try disabling any antivirus or firewall temporarily and see if that resolves the issue³.

  5. Use a Different USB Port or Cable: Try connecting your device to a different USB port or using a different USB cable to rule out any hardware issues⁴.

  6. Check for Port Conflicts: Ensure that no other applications are using the same port. Close any other programs that might be accessing the serial port⁵.

If these steps don’t resolve the issue, you might want to reach out to Makeblock support directly for further assistance. Let me know if you need any more help!


#4

I’m also having this problem. I tried connecting with the Arduino IDE and it seems to connect fine, I was able to run a program and monitor the serial port. I went through all the 6 steps above except trying a new USB cable that the one that came with mBot. I didn’t try that because I don’t have another cable and because it connected with the Arduino IDE.


#5

that will be up to @Best_codes


#6

@lucioms Try the web UI as well.
https://ide.mblock.cc

You might also want to try older versions (5.3) and see if it’s a version with the 5.4 or 5.5 version series.