Robot arms

MaxArm

An open-source ESP32 robot arm with a suction nozzle, programmed in Python or Arduino.

ESP32
Arduino
Suggested for secondary
Suggested for university

MaxArm is an open-source desktop robot arm powered by an ESP32 microcontroller, for STEAM education and more advanced projects. Its linkage mechanism body carries bus servos and a suction nozzle, and inverse kinematics lets it sort, pick, transport and stack objects. It is programmed in Python or Arduino, connects over Wi-Fi and Bluetooth, and can be controlled from an app, PC software or a mouse, and from a wireless handle in the Standard Kit and up. The Standard Kit adds sensors, the Advanced Kit adds the WonderCam AI vision module, and the Developer Kit adds a sliding rail.

Zeta42 is an authorised Hiwonder partner in the Middle East.

Configurations

Choose how it ships.

Model: Starter kit · Standard kit · Advanced kit · Developer kit

What it does

Built for.

Linkage mechanism
The linkage body lets the end effector move efficiently along the x, y and z axes. The arm is hard aluminium alloy, with metal bearings for smoother, more accurate joints, in a compact design.
Inverse kinematics to study
Hiwonder provides MaxArm's inverse kinematics analysis, DH model and linkage coordinate system diagram. Enter end effector coordinates and the inverse kinematics source code works out each servo's angle.
Python and Arduino
MaxArm uses Python by default and can also be programmed in the Arduino IDE. The controller pairs an ESP32 core board with an extension board that has servo ports, a buzzer, an LED, USB and expansion interfaces.
Sensors (Standard Kit and up)
Ultrasonic, colour, touch, sound, light and infrared sensors and a digital tube let MaxArm stack blocks it detects, place a block when touched, sort by colour and respond to the number of knocks it hears.
AI vision (Advanced and Developer Kit)
The WonderCam AI vision module learns new targets with one-click training. With the fan and dot matrix modules, MaxArm runs a face-tracking fan, colour tracking, waste sorting and mask recognition.
Sliding rail (Developer Kit)
MaxArm fixes to the sliding rail through reserved holes in its base, then picks and transports blocks as on an industrial line.

Where it is used

Applications.

Teaching inverse kinematics and the DH model
Python and Arduino programming on a real robot arm
Sensor and AI vision projects (Standard Kit and up)
Simulated industrial transport on a sliding rail (Developer Kit)

Videos

See it run.

Specifications

The full sheet.

Product dimension: 158 × 160 × 260 mm
Weight: 1.3kg
DOF of robotic arm: 4DOF
Power: 12V 5A DC adaptor
Controller system: ESP32 open source controller
Software: PC software, iOS / Android app
Communication method: WiFi and Bluetooth
Servo: HTS-35H bus servo and LFD-01M micro servo
Control method: Computer / phone / mouse control; wireless handle (Standard Kit and up)
Package size: 298 × 210 × 175 mm
Package weight: About 2kg

Specifications as published by Hiwonder.

In the box

What arrives.

Starter Kit: robotic arm (assembled), 12V 5A power adapter, blocks (3 × 3 cm), USB cable, four suction cups and a screwdriver
Standard Kit: the Starter Kit plus a wireless handle controller, glowing ultrasonic sensor, colour, touch, sound and light sensors, a digital tube, two infrared sensors, three 4-pin wires (30 cm) and a screw bag
Advanced Kit: the Standard Kit plus the WonderCam AI vision module with metal brackets, a fan module, a dot matrix module and three 4-pin wires (50 cm)
Developer Kit: the Advanced Kit plus a sliding rail and sliding rail bracket

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