Body Conductivity
This interactive game, designed for children, is based on measuring body conductivity using an Arduino. A metal probe is used to detect body resistance, and the results are visualized through an LED strip. When the user touches the probe, their body’s resistance is measured, and the LED colors change accordingly, creating a dynamic and colorful display.
The experiment can be carried out using a device that effectively visualizes the conductivity of the human body. The device is equipped with two handles and LEDs (a central LED and LED strips) that light up when both handles are touched.
Structure
The device consists of a wooden board on which two handles (green) are fixed. From these handles, two LED strips (blue) extend towards a central LED (red).
Operation
When a person or a chain of people touch both handles, completing the circuit, the Arduino board detects it and activates the central LED while triggering an animation on the LED strips that simulates the flow of current. The device is powered by an external power supply.
The core physical principle behind this installation is electrical conductivity. Human skin conducts electricity due to moisture and electrolytes. The system measures the resistance between the user and the probe, and the corresponding LED effects change based on the level of resistance detected, providing an engaging way to visualize how well the body conducts electricity.
