Stemoto LogoStemoto
Back to Directory

Body Movements (Smart Bionic Arm Joint & Flex Sensor Muscle Wearable)

Source:

Explore human joints and muscle movement! Wear a flex sensor glove on your finger or arm; as you bend your joint, a robotic bionic arm joint mimics your movement via servo motors while an OLED screen displays joint angle degrees.

Categorisation

Props & Materials Required

  • •Wearable flex sensor glove / arm strap
  • •2.2-inch resistive flex sensor bend module
  • •Servomotor robotic arm joint mechanism (Hinge joint & Ball-and-Socket model)
  • •ESP32 controller board
  • •0.96-inch OLED display screen
  • •DFPlayer Mini MP3 module + 3W speaker

Step-by-Step Instructions

1

Wear Flex Sensor Glove

Strap flex sensor onto your index finger or elbow joint.

2

Bend Joint Arm

Bend your elbow joint 90°. Flex sensor changes resistance from 10kΩ → 30kΩ.

3

Robotic Arm Mimics Movement

Servo motor activates! Robotic bionic arm joint bends 90° in perfect sync!

4

Joint Classification & Audio Guide

OLED displays 'Joint Type: HINGE JOINT (Elbow/Knee) | Angle: 90°'. Speaker explains how biceps contract to lift the forearm!

Why It Works & Notes

Muscles work in antagonistic pairs (biceps contract, triceps relax) to move hinge joints (elbow/knee) and ball-and-socket joints (shoulder/hip). Wearing flex sensors that control a servo arm joint makes biomechanics and prosthetics intuitive.