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Digital and e-textile design at the CCI

Textiles Area

This page is a guide to different techniques that can be used in digital and e-textile design, resources we have at the CCI, places to source materials, and possible sources of inspiration/research references. Here, 'digital design' refers to textile equipment...

textiles
embroidery
materials
sensors

Using an MPR121 capacitive touch sensor

How To Guides Physical Computing

The MPR121 is a tiny microchip formerly manufactured by NXP, now under Resurgent Semiconductor, it is a tiny surface mount device that provides 12 capacitive touch electrodes through an I2C interface. What is capacitive touch? Capacitive touch the the technolo...

components
mpr121
pcap
capacitive
touch
sensors
guide

Using a Sparkfun Sound Detector

How To Guides Physical Computing

The Sound Detector is a board made by Sparkfun electronics that provides a way to detect ambient sound levels. There are three connections on the board: Audio - This is the raw audio from the microphone. Envelope - This is a analog value representing the vo...

music
guide
electronics
pcomp
sound
sensors

How to connect a push button or switch

How To Guides Physical Computing

Buttons and switches are a way of opening and closing a circuit, i.e. making and breaking a connection as one of the most rudimentary forms of sensor you can use with an Arduino. There are dozens of different types of switches and buttons, but at their most ba...

guide
sensors
electronics
pcomp
components

Using a HC-SR04 distance sensor

How To Guides Physical Computing

The HC-SR04 is a ultrasonic distance sensor, it uses ultrasound to send out a ping and measure how long the sound takes to come back, exactly like bats use to fly in the dark. The sensor works between 2-400cm however if the ping sound is reflected away from th...

electronics
pcomp
guide
sensors
components

Connecting a Potentiometer

How To Guides Physical Computing

A potentiometer (often abbreviated to pot) is an electronic component with three connections, the main purpose of the pot is to create a variable voltage as an input to a circuit, for example controlling how loud your speakers should be. Inside a potentiomete...

guide
electronics
pcomp
components
sensors

How to connect a Light Dependent Resistor (LDR)

How To Guides Physical Computing

An LDR or Light Dependent Resistor is a component which restricts how much power can flow through a circuit based on how much or little light hits the sensitive part on the top. Wiring To use a Light Dependent Resistor, we have to use it in combination with a...

guide
components
electronics
pcomp
sensors

How to use a rotary encoder

How To Guides Physical Computing

A rotary encoder is a device used to measure the rotation of something, similar to a rotary potentiometer but not limited to how many rotations can be made, a common example of a rotary encoder is the volume dial on a car radio, which can be turned infinitely ...

components
guide
electronics
pcomp
sensors