Unit C6L: Flash Firmware & Run Code

1. UiFlow2 Firmware Burning

1. Refer to the UIFlow2 Web IDE Tutorial to learn the basic workflow of using UiFlow2 and complete the installation of the M5Burner firmware burning tool.

2. Download the firmware compatible with Unit C6L in M5Burner, as shown below.

3. Connect the device to the computer using a USB Type-C data cable. Press and hold the reset button on the side for 3 seconds until the green light turns red. The device will then enter download mode and wait for burning.

4. In M5Burner, click the Burn button for the corresponding firmware, select the corresponding device port, and click Start.

5. Fill in the Wi-Fi configuration required by the device, including Wi-Fi SSID and Wi-Fi Password, as well as any other device configurations that need to be added or modified. Then click Next to start burning.

Configuration information description:

• COM: Select the serial port corresponding to the device
• BaudRate: Baud rate for serial communication
• Server: Server address that the device connects to
• WIFI SSID/WIFI Password: Wi-Fi name and password that the device connects to
• SNTP Server:
  • SNTP0: Alibaba Cloud NTP server (China)
  • SNTP1: Japan NTP server pool
  • SNTP2: Global public NTP server pool
• Timezone: Time zone setting
• Boot Option: Set the device startup mode after firmware burning is complete
  • run main.py directly: After burning is complete, directly run the program in main.py without connecting to the network or displaying the UiFlow2 startup screen
  • show startup menu and network setup: The device connects to the network, and devices with a screen will display the UiFlow2 startup screen
  • only net work setup: The device only connects to the network and does not display the UiFlow2 startup screen

6. When the prompt Burn successfully, click here to return appears, the burning is successful. Reset the device at this point.

7. After firmware burning is complete, if you need to modify the device configuration, keep the USB connection, restart the device, click the Configure option, and modify the settings according to the on-screen prompts.

2. Device Connection

The device supports connecting to UiFlow2 via Access Code (over a wireless network) or USB (wired connection to the computer) for program deployment and debugging. Refer to the following tutorial steps for details:

Access Code Wireless Connection

1. Before connecting, make sure the device is connected to the network. When the network connection is successful, the device interface displays Wi-Fi OK. If it is not connected to the network, the device interface displays Wi-Fi FAIL. Check whether the Wi-Fi name and password entered during firmware burning are correct, modify them through the Configure option in M5Burner, and burn the firmware again.

2. View the currently generated valid Access Code on the device's UiFlow2 startup screen.

3. Visit uiflow2.m5stack.com to open the UiFlow2 Web IDE.

4. Click Select Your Controller (displayed when entering for the first time) or the Controller button on the page to enter the Select Device page.

5. Click Connect Device, enter the access code and a custom device name, then click Confirm to connect Unit C6L to UiFlow2.

USB Wired Connection

1. Visit uiflow2.m5stack.com to open the UiFlow2 Web IDE, and connect Unit C6L to the computer via a USB Type-C cable.

2. Click Select Your Controller (displayed when entering for the first time) or the Controller button on the page to enter the Select Device page.

3. Select the Unit C6L device from the device list, then click Confirm.

4. Click the WebTerminal button, select the serial port of Unit C6L in the dialog box, and click Connect.

When the WebTerminal screen displays Connected to Serial Port!, the USB connection is successful.

3. Program Running and Downloading

After the device is connected to UiFlow2, you can drag Blockly blocks to edit the program.

After program editing is complete, click the Run Once button in the lower-right corner of the interface to run and test the program once. Click the Run Always button to download the program to the device.

You can also run once or download the program from the WebTerminal window.

4. Related Links

• UiFlow2 Blockly Introduction
• UiFlow2 Firmware Source Code