UnitV Maixpy

Driver installation

Firmware burning

Kflash_GUI

1. Download the firmware and Kflash_GUI burning tool (UnitV is using the same firmware as StickV).

2. Connect the device to the computer, open the Kflash_GUI, select the correct device port, choose board type M5StickV, firmware file, baud rate, and click Download to start burning.

MaixPy IDE

MaixPy IDE can edit/run programs, see the camera frames and transfer files easily. It's a very easy-to-use software for beginners and those want to develop the project quick and easily.

• Download MaixPy IDE

Run MaixPy IDE, click on the toolbar and select the device type. Tools-> Select Board-> M5StickV

Click the Connect button in the lower left corner and select the correct connection port, click OK.

The connection button will turn into red when connection succeed. Now you can edit your codes and run them by clicking the Run button at the lower left corner.

Serial debugging

1. USB connection for UnitV will be enabled as system log port by default. Users can use this interface to connect UnitV to the computer using any serial tools, and the default baud rate is 115200bps. The following operation is based on Putty.

• Putty - download

1. After running Putty, connect the UnitV to the computer, set the port number and baud rate, then click "open" to start the connection.

1. You will automatically enter the interactive interface of MaixPy after connection succeed. The device will run factory program by default, you can interrupt it by pressing the shortcut key "Ctrl+C".

Editing programs

In MaixPy firmware, there is a built-in open-source editor Micropython Editor(pye), which makes it easy to modify program files.

You can use os.listdir() to list the files in the current directory.

Use pye("hello.py") to create a file and enter editing mode.

See the shortcut keys.

After finishing editing, press Ctrl+S > Enter to save, press Ctrl+Q to exit the editor.

Note: You will need to use key Del for backspace, the key Backspace will trigger Ctrl+H by default.

Run the program

Use os.chdir() to switch from the current directory to the file directory, e.g. os.chdir("/flash").

Method 1: Run the codes line by line

Run import hello, then you can see the output hello maixpy.

Please note that import can only execute at once. If you need to execute it more than once, it is recommended to run the .py file as following:

Method 2: Run the .py file

with open("hello.py") as f:
    exec(f.read())

Auto-run programs on boot

The system will create a boot.py file in the /flash or /sd directory. System will run this file while booting.

WS2812

The firmware has a built-in WS2812 RGB LED driver library, the following is an example program. Note: Since the expansion port of UnitV does not have the ability to drive loads, this program is only suitable for driving the built-in RGB LEDs.

from modules import ws2812
from fpioa_manager import *
fm.register(8)
class_ws2812 = ws2812(8,100)
r=0
dir = True
while True:
    if dir:
        r += 5
    else:
        r -= 5
    if r>=255:
        r = 255
        dir = False
    elif r<0:
        r = 0
        dir = True
    for i in range(100):
        a = class_ws2812.set_led(i,(0,0,r))
    a=class_ws2812.display()