12. Skin Electronics¶
I. References & Inspiration¶
II. Intro¶
Catching the last breaths of this journey and officially closing the first chapter of Fabricademy with this week, where the skin itself becomes the input. So, what are skin electronics? They are soft, wearable circuits designed to adhere directly to the skin, enabling the body to be monitored or interacted with without rigidity or discomfort.
A. Introduction to some new sensors¶
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Pressure sensor is a Force Sensitive Resistors (FSR), it allows you to detect physical pressure, squeezing and weight.
Remember!
Most common analog sensors are variable resistors, such as potentiometers, light sensors, temperature sensors, and pressure sensors.
When we interact with a variable resistor (changing light levels, rotating a knob, applying pressure, etc.), its resistance value changes and creates an analog signal.
III. Class Experimentation¶
Building up some sensors with Emma!
Pressure Sensor (Pressure Sensitive Matrix)¶
Initially we have to differ between two terms a Pressor Sensor which is a device that measures force applied on a surface. It tells you how much pressure, not necessarily where unless it is arranged in a matrix, and Sensitive Matrix (also called a sensing matrix or sensor array) which is a grid of multiple sensing points forming a pattern of many sensors arranged in rows and columns, giving you spatial information (where you touched + how much).
Notice!
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A pressure-sensitive matrix is a matrix made from many tiny pressure sensors.
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A pressure sensor by itself is just one point.