Robot arms

ArmPi mini

A compact Raspberry Pi robot arm for beginners, with a wide-angle camera, OpenCV vision and Python.

Raspberry Pi
Suggested for secondary
Suggested for university

ArmPi mini is a compact robot arm for learning AI vision and machine learning on a Raspberry Pi 5 or 4B. A 170° wide-angle HD camera and OpenCV image processing let it recognise colours, sort them, track targets and stack blocks, and inverse kinematics turns a target's position into precise grasping. The arm has four degrees of freedom plus a duralumin gripper, driven by a full-metal high-torque servo at the base and an anti-blocking micro servo at the end. It runs on two 18650 batteries for about 60 minutes and is programmed in Python. Kits come with or without a Raspberry Pi; kits without one do not include a microSD card.

Zeta42 is an authorised Hiwonder partner in the Middle East.

Configurations

Choose how it ships.

Model: Without Raspberry Pi 4B · With Raspberry Pi 4B (4GB) · Without Raspberry Pi 5 · With Raspberry Pi 5 (2GB) · With Raspberry Pi 5 (4GB) · With Raspberry Pi 5 (8GB)

What it does

Built for.

Vision with OpenCV
The 170° wide-angle camera and OpenCV handle colour recognition, colour sorting, target tracking and intelligent palletising.
Inverse kinematics
ArmPi mini recognises a target's colour, works out its coordinates, then uses inverse kinematics to track, grip and sort it accurately.
Metal arm, mixed servos
The bracket is lightweight, high-strength aluminium alloy. A full-metal high-torque servo with a metal horn drives the base, and an anti-blocking micro servo works the duralumin gripper.
Raspberry Pi 5 or 4B
The arm runs on a Raspberry Pi 5 or 4B with an expansion board, for motion control, machine vision and OpenCV projects in Python. Kits come with a Pi 4B (4GB), with a Pi 5 (2GB, 4GB or 8GB), or without a board.
App and PC control
Control it from the iOS and Android app or from PC software on a computer. It connects over Wi-Fi or Ethernet.
Room to play
Hiwonder's examples go beyond sorting, to stacking blocks and picking up dolls.

Where it is used