MaixPy 4.0.2

Sipeed Maix Vision Python SDK

MaixPy

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New MaixPy (v4) is on the way~ And new hardware platform is coming soon~
The code will open source here when it's ready, please stay tuned.
If you have any suggestions, tell us in MaixHub, or Telegram/MaixPy or QQ group: 862340358.

Maix-I K210 series please visit MaixPy-v1.

Let's Sipeed up, Maximize AI's power!

MaixPy (v4) provide a super easy way to develop AI vision projects with Python script.

With MaixPy you can easily use camera, screen and AI in a short code:

from maix import camera, display, image, nn

classifier = nn.Classifier(model="/root/models/mobilenetv2.mud")

cam = camera.Camera(classifier.input_width(), classifier.input_height(), classifier.input_format())
dis = display.Display()

while 1:
    img = cam.read()
    res = classifier.classify(img)
    max_idx, max_prob = res[0]
    msg = f"{max_prob:5.2f}: {classifier.labels[max_idx]}"
    img.draw_text(10, 10, msg, image.COLOR_RED)
    dis.show(img)

This program read image from camera, and classify what it is by mobilenetv2 model, then show the result on screen.

Simply use serial port:

from maix import uart

ports = uart.list_ports()
print("uart ports:", ports)

serial = uart.UART(ports[0], 115200)

serial.write_str("hello world")
print("received:", serial.read(timeout = 2000))

And we provide several cool hardware platforms:

Platform	Picture	Description	Price	Buy
MaixCam		- 1Tops@INT8 NPU, support BF16, support YOLOv5 YOLOv8 etc. - 1GHz RISC-V(Linux) + 700MHz RISCV-V(RTOS) + 25~300MHz 8051(LowPower) - 256MB DDR3 - USB2.0/100M Eth/WiFi6/BLE5.4/H.264/H.265/IIC/PWM/SPI/UART... - 5M Camera/2K encoder/Max 1080p screen	￥50 ~ ￥399	To be on sale

Maix-I K210 series is outdated, Not support MaixPy v4, use it please visit MaixPy-v1

Features

Feature	Description	Picture/Video
Python support	Support Python and common libs like numpy, opencv.	-
Simple API	Provide simple API to access hardware, like camera, screen, NPU, etc. And Simple API to create vision apps.	-
Efficient AI vision	Many AI vision features with hardware acceleration.	-
C++ Version	MaixCDK is a C++ version SDK, have the same API with MaixPy, it's easy to convert from one to another	-
Open source	Software and hardware are open source.	-
Many APPs	Provide many official APPs, like AI recognition, Video streaming, Monitor etc.	-
Easy to start	Use APPs even you don't know how to program.	-
As module	Use this as serial module, control it by command.	-
MaixVision workstation	A PC software to programming and more.	-
APP Store	Share your APPs to community, and install APP in one click.	-
Compatible API with MaixPy-v1	MaixPy-v4 have a MaixPy-v1 compatible API, so you can quickly migrate your MaixPy-v1 project to MaixPy-v4.	-
AI classification	Classify objects use AI	-
AI object detection	Detect objects use AI	-
AI face recognition	Recognize faces use AI	-
AI Monitor	Security monitor, streaming video and detect objects. Even broadcast to live platforms like bilibili.com	-
AI object tracking	Track objects use AI	-
Find color	Find color	-
Route tracking	Track route	-
Face Tracking	Track face	-
OCR	Recognize text and numbers	-
QR code	Recognize QR code	-
Desktop monitor	Monitor PC info, like CPU, memory, network, etc.	-
Wether station	Monitor wether info, like temperature, humidity, etc.	-

Maix Ecosystem

MaixPy not only a Python SDK, but have a whole ecosystem, including hardware, software, tools, docs, etc. See the picture below:

Who are using MaixPy?

• AI programmer who want to develop your AI model to embedded devices.

MaixPy provide easy-to-use API to access NPU, and docs to help you develop your AI model.

• STEM teacher who want to teach AI to students.

MaixPy provide easy-to-use API, PC tools, online AI train service ... Let you focus on teaching AI, not the hardware and complicated software usage.

• Maker who want to make some cool projects but don't want to learn complicated hardware and software.

MaixPy provide Python API, so all you need is learn Python, and MaixPy's API is so easy to use, you can make your project even in a few minutes.

• Engineer who want to make some projects but want a prototype as soon as possible.

MaixPy is easy to build projects, and provide corresponding C++ sdk, so you can directly use MaixPy to deploy or transfer Python code to C++ in a few minutes.

• Students who want to learn AI, embedded development.

We provide many docs and tutorials to help you find learning route, and grow up step by step. From simple Python programming to Vision, AI, Audio, Linux, RTOS etc.

• Enterprise who want to develop AI vision products but have no time or engineers to develop complicated embedded system.

Use MaixPy even graphic programming to develop your products with no more employees and time. For example, add a AI QA system to your production line, or add a AI security monitor to your office as your demand.

• Contestants who want to win the competition.

MaixPy integrate many functions and easy to use, fasten your work to win the competition in limited time.

Quick start

Please visit Quick Start doc to get started.

Full Documentation: wiki.sipeed.com/maixpy

What difference between MaixPy v1, MaixPy3 and MaixPy v4?

• MaixPy v1 use MicroPython programming language, only support Sipeed Maix-I K210 series hardware, have limited third-party packages.
• MaixPy3 is designed for Sipeed Maix-II-Dock v831, not a long-term support version.
• MaixPy v4 use Python programming language, so there's much package we can use directly. MaixPy v4 support new hardware platforms of Sipeed, it's a long-term support version, the future's hardware platforms will support this version. MaixPy v4 have a MaixPy-v1 compatible API, so you can quickly migrate your MaixPy v1 project to MaixPy v4.

(MaixPy v4 Will not support Maix-I K210 series, if you are using Maix-I K210 series, it's recommended to upgrade hardware platform to use this to get more features and better performance.)

Why upgrade from Maix-I K210 or Maix-II v831 ?

K210 and v831 are outdated, K210 have many limitations in memory, performance, NPU operators missing etc.
No matter you are using them or new comer, it's recommended to upgrade to MaixCam and MaixPy v4.

Here's the comparison between them:

Feature	Maix-I K210	Maix-II v831	MaixCam
CPU	400MHz RISC-V x2	800MHz ARM7	1GHz RISC-V(Linux) 700MHz RISC-V(RTOS) 25~300MHz 8051(Low Power)
Memory	6MB SRAM	64MB DDR2	256MB DDR3
NPU	0.25Tops@INT8 official says 1T but...	0.25Tops@INT8	1Tops@INT8
Encoder	✖	1080p@30fps	2K@30fps
Screen	2.4" 320x240	1.3" 240x240	2.28" 552x368 / 5" 1280x720 / 7" 1280x800 / 10“ 1280x800
Camera	30W	200W	500W
WiFi	2.4G	2.4G	WiFi6 2.4G/5G
USB	✖	USB2.0	USB2.0
Eth	✖	100M	100M
SD Interface	SPI	SDIO	SDIO
BLE	✖	✖	BLE5.4
OS	RTOS	Tina Linux	Linux + RTOS
Language	C / C++ / MicroPython	C / C++ / Python3	C / C++ / Python3
Software	MaixPy	MaixPy3	MaixCDK + MaixPy v4 + opencv + numpy + ...
PC software	MaixPy IDE	MaixPy3 IDE	MaixVision Workstation
Docs	⭐️⭐️⭐️⭐️	⭐️⭐️⭐️	🌟🌟🌟🌟🌟
Online AI train	⭐️⭐️⭐️	⭐️⭐️⭐️⭐️	🌟🌟🌟🌟🌟
Official APPs	⭐️⭐️	⭐️⭐️⭐️	🌟🌟🌟🌟🌟
AI classify(224x224)	MobileNetv1 50fps MobileNetv2 ✖ Resnet ✖	MobileNet ✖ Resnet18 20fps Resnet50 ✖	MobileNetv2 130fps Resnet18 62fps Resnet50 28fps
AI detect	YOLOv2(224x224) 15fps	YOLOv2(224x224) 15fps	YOLOv5s(224x224) 100fps YOLOv5s(320x256) 70fps YOLOv5s(640x640) 15fps YOLOv8n(640x640) 23fps
Ease of use	⭐️⭐️⭐️⭐️	⭐️⭐️⭐️	🌟🌟🌟🌟🌟

License

All files in this repository are under the terms of the Apache License 2.0 Sipeed Ltd. except the third-party libraries or have their own license.

Community

• Project sharing: maixhub.com/share
• Discussion: maixhub.com/discussion
• QQ group: 862340358
• Telegram: t.me/maixpy