Mobile and ROS robots

Nexbit AI

A micro:bit robot car with a WonderLLM AI module for voice and vision; the Advanced Kit adds a metal gripper.

micro:bit
Suggested for primary
Suggested for secondary

Nexbit AI is a micro:bit educational robot car with an AI module that has a built-in microphone, speaker, 2MP camera and touchscreen. The module runs on an ESP32-S3, supports the XiaoZhi platform and combines text, voice and vision models, so the robot can hold a conversation, recognise what it sees and turn spoken commands into movement. A glowy ultrasonic sensor, a 4-channel line follower and RGB lights cover line following, obstacle avoidance and distance measuring. The Advanced Kit adds a lightweight anti-stall metal gripper for pick-and-carry tasks. Hiwonder provides step-by-step guides and tutorials covering programming and multimodal AI.

Zeta42 is an authorised Hiwonder partner in the Middle East.

Configurations

Choose how it ships.

Model: Standard Kit · Advanced Kit
Controller: Without micro:bit V2 · With micro:bit V2

What it does

Built for.

Multimodal AI module
The WonderLLM module integrates text, voice and vision models for natural conversation and control, with encyclopedia-style questions and answers shown on its display and spoken aloud.
Voice into action
Spoken commands drive line following and obstacle avoidance through the chassis, and the camera identifies objects so the robot understands what it is asked to do.
Metal gripper (Advanced Kit)
The anti-stall metal gripper grabs, carries and places objects from the app or a program, for example picking up an item while following a line and dropping it at a set point.
Sensors
Four infrared sensor pairs, with a rotary adjustment, follow lines and recognise intersections. The glowy ultrasonic sensor measures distance and glows in different colours to show the robot's status.
micro:bit programming
Program it with micro:bit graphical blocks or JavaScript, or use the app. Built-in functions include sound and light interaction, gravity control, touch control, image transmission, and face and colour recognition.
Battery
An 1800mAh rechargeable battery gives up to 90 minutes of use and charges through a built-in USB port.

Where it is used

Applications.

Introducing large AI models and embodied AI in primary and secondary classrooms
micro:bit coding with blocks or JavaScript
Voice-controlled line following and obstacle avoidance
Pick-and-carry challenges (Advanced Kit)

Specifications

The full sheet.

Dimensions: 103 × 159 × 178 mm (Advanced Kit, with gripper)
Material: Metal bracket
Controller: micro:bit board
AI module: WonderLLM AI module, ESP32-S3
Camera: 2 MP
Inputs: WonderLLM AI module, 4-channel line follower sensor, glowy ultrasonic module, IR receiver module
Outputs: RGB LEDs, buzzer, servo port, I2C port, GPIO port, 5 × 5 LED matrix
Battery: 3.7 V 1800 mAh 18650 lithium battery
Battery life: Approx. 90 min
Programming software: micro:bit (graphical / JavaScript), app
Communication: USB, Bluetooth
Motor model: N20 DC geared motor
Servo model: LFD-01L anti-stall servo (Advanced Kit)
Control methods: App control; wireless controller control (Handlebit, not included)
Package dimensions: 19.8 × 13.0 × 9.2 cm
Package weight: 0.7 kg