Port Connection Error Image

Cause: The computer does not have the connector driver installed

• You can try to follow the instruction video below:

• Or follow these steps:

Step 1: Visit to link https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/all

Step 2: Click Drivers (If You Need Them)

Click “Drivers (If You Need Them)”

Step 3: Click “Window (EXE)” to download the driver file for Windows OS

• Click Window (EXE) to download

Click Windows (EXE) to download

• Note: You have the choice to select the fitting driver for your computer’s operating system.

Step 4: Select the folder to save the file and click “Save” on your computer”

Click “Save” on your computer

Step 5: Select Open file

• After the download is complete, we will get the CH341SER.EXE file as shown below.
• Right click and select Open file or double click to proceed with the installation.

Select Open file

Step 6: Click “Run” button

Click Run to install

Step 7: Click “Install” button

Click the “Uninstall” button first, then click on the “Install” button.

Windows CH340 Driver Installation

Step 8: Click OK to complete the installation

• Wait for a few seconds, a window will appear saying that the installation is successful, select OK to finish.

Click OK to finish the installation

• Congratulations, you have successfully installed the port driver connected to the Arduino board!

Prepare

At the Leanbot IDE page, ready to upload coding the program into Leanbot

Step 1. Turn on Leanbot

When Leanbot is turned on (1), you will see the light on Leanbot glow red (2).

Step 2. Plug USB cable from computer into Leanbot

Step 3. Click “Compile & Upload” button

To load the program into Leanbot, press the “Compile & Upload” button.

Step 4. Select COM port

4a. If no window popup, go directly to Step 5.
(When upload was successful previously)

4b. If “wants to connect to a serial port” window popup:

1. Select the correct serial port
2. Then click “Connect”

4c. If wants to connect to a serial port window popup but empty:

1. Plug in the USB cable again
2. Then go to Step (4b)

Step 5. Wait until Upload done (100%)

5a. Wait for the program to upload…

• Uploading 25%…
• Uploading 50%…
• Please wait a few seconds until it’s done!

5b. The code program is uploaded successfully
On the web browser appears the icon (1) has successfully connected Leanbot with your computer.
The screen shows the message:“100% – Done!” (2)

Step 6. Leanbot is now running the newly uploaded program

After the code program is uploaded, unplug Leanbot from the computer.

Notes:

• Do not need to Refresh / Reload page before Uploading code.
• Make sure BOARD is ARDUINO UNO or ARDUINO NANO.
• Leanbot is fully charged before loading the program.