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Product Description: StackChan - an open-source interactive AI desktop robot for learning programming and automation - M5Stack K151
StackChan is a unique AI robot designed as a desktop companion, assistant, and development platform . Based on the powerful ESP32 -S3 microcontroller, it offers a wide range of functions, from voice interaction and image analysis to IoT device control. Thanks to built-in sensors , a touchscreen, and servos, the robot can express emotions, move, and respond to its environment. Its open architecture makes StackChan ideal for developers, robotics enthusiasts, and anyone looking for a smart companion for home or office use.

The dedicated StackChan World mobile app allows you to easily configure your robot's personality, select an AI model, and remotely control facial movements and animations.
Main features of the StackChan robot
- ESP32-S3 processor : a powerful 240MHz dual-core chip for smooth AI and communication performance
- 16 MB Flash and 8 MB PSRAM memory : enables support for more complex applications and animations
- Wireless connectivity : supports 2.4 GHz WiFi, Bluetooth 5 LE and IR communication
- IPS touchscreen : 2'' display with a resolution of 320 x 240 px with multi-touch support
- GC0308 camera : 0.3 MPx module for basic image analysis, monitoring and remote functions
- Advanced sensors : 9-axis IMU, proximity and light sensor, NFC and touch panel
- User interaction : dual microphones, 1W speaker, RGB LEDs and animated expressions
- Movable structure : 360° servo in the horizontal axis and 90° servo in the vertical axis with feedback
- Hardware expansions : microSD slot, Grove, GPIO, UART and I2C interfaces
- Open-source : access to software, firmware and hardware documentation
StackChan AI Robot Software
StackChan offers extensive programming capabilities thanks to support for the Arduino IDE, MicroPython, UiFlow2, PlatformIO, and ESP-IDF environments. The pre-built software includes an extensive AI agent that enables voice communication, animations, and robot function control. A major advantage is its integration with a mobile app , which allows for remote robot control. Camera image preview and behavior configuration. StackChan also supports OTA updates , allowing for easy functionality development without connecting a cable . Thanks to its open source code and active user community, you can use ready-made projects or create your own applications. The manufacturer provides full repositories including firmware, a mobile app, and a backend server, making this robot one of the most open AI platforms on the market.
Thanks to LEGO compatibility and Grove interfaces, you can easily build your own mechanical and electronic extensions.
Possibilities of using StackChan in practice
StackChan stands out for its immense versatility. It can act as an interactive AI assistant that answers questions, conducts conversations, sets reminders, and controls smart home devices. Integration with systems such as Home Assistant allows it to serve as a smart home management center. The robot also works well as a mobile monitoring system – a camera, sensors, and remote access via an app allow for real-time monitoring of the surroundings and response. Additionally, the "avatar" function allows StackChan to be used as a communication intermediary – the robot mirrors the user's movements and can replace the camera during conversations. It's a true design laboratory for creators and makers. LEGO compatibility and Grove interfaces enable easy construction of their own mechanical and electronic extensions. The ability to program and integrate with other systems makes StackChan suitable for both learning and advanced IoT and AI projects. Furthermore, the robot boasts entertainment features – it can express emotions, dance, respond to touch , and behave in a way that resembles a human companion. This makes it not only a tool but also an engaging desktop companion.
StackChan AI Robot Technical Specifications
- Microcontroller: ESP32-S3, Xtensa dual-core 32-bit LX7, 240 MHz
- Memory: 16MB Flash, 8MB PSRAM
- Connectivity: WiFi 2.4 GHz IEEE 802.11 b/g/n, Bluetooth 5 LE, IR Tx/Rx
- Interfaces: USB Type-C, GPIO, UART, I2C, USB OTG, Grove x3
- Display: 2'' IPS LCD, 320 x 240 px, 65536 colors, multi-touch
- Camera: GC0308, 640 x 480 px, 0.3 MPx
- Audio: dual microphones, ES7210 codec, 1W speaker
- Sensors: LTR-553ALS-WA, BMI270, BMM150, ST25R3916 NFC, Si12T touch panel
- Interaction elements: 12 WS2812C RGB LEDs, power button, reset button, power LED
- Motors: 360° horizontal servo with feedback, 90° vertical servo with feedback
- Power supply: 550 mAh battery, USB Type-C
- Card slot: microSD
- Dimensions: 54 x 70.5 x 61.5 mm
- Weight: 187 g
Contents of the set
- StackChan with CoreS3 preinstalled
- USB Type A - USB Type C cable, 50 cm long
- Character expression stickers
- User manual


