Welcome to K230 Vision Module repository
14.microbit_k230 object detection
microbit_k230 object detection
microbit_k230 object detectionK230 and microbit communication1. Experimental Prerequisites2. Experimental wiring3. Main code explanation4. Experimental phenomenon
K230 and microbit communication
1. Experimental Prerequisites
This tutorial uses a micro:bit. The corresponding example program path is [14.export\microbit-K230\14.Microbit_k230_object_detect].
To begin the experiment, you must run the [14.export\CanmvIDE-K230\14.object_detect_yolov8n.py] program on the K230. We recommend downloading it as an offline program.
Items needed:
Windows computer, microbit, USB to TTL module, K230 vision module (including TF card with image burned), type-C data cable, connecting cable (Dupont cable), alligator clip, import K230AI library: https://github.com/YahboomTechnology/K230-Module.git
2. Experimental wiring
| k230 vision module | Microbit |
|---|---|
| GND | GND |
| TXD(IO9) | P2 |
| USB to TTL module | Microbit |
|---|---|
| RXD | P1 |
| GND | GND |
3. Main code explanation
As can be seen from the code, simply configure the serial port and call the relevant serial port and K230 building blocks to obtain data.
- x: The horizontal coordinate of the top left corner of the recognized box
- y: The vertical coordinate of the top left corner of the recognized box
- w: The width of the recognized box
- h: The height of the recognized box
- msg: The object type
4. Experimental phenomenon
- After connecting the cables, the K230 vision module runs offline. After connecting the K230 to the CanMV IDE, open the program, click [Save open script to CanMV board (as main.py)] on the toolbar, and then restart the K230.
- Find the hex program of this tutorial, right-click the hex program, and upload the hex program of this tutorial to the microbit
- The serial port assistant is set to the interface shown in the figure
- When the K230 camera detects an object, the serial port assistant will print out the information transmitted from the K230 to the micro:bit.
- x: The horizontal coordinate of the top left corner of the recognized box
- y: The vertical coordinate of the top left corner of the recognized box
- w: The width of the recognized box
- h: The height of the recognized box
- msg: The object type
As shown in the figure below
