E-textile swatches

Collection of E textile Swatches.

These swatches contain a fabric part and an electronic part. Often electronics and fabric or other materials are intertwined, mixed, used by each other.

Circuit, buttons and switches

Using fabric gives rise to an infinity of possibilities in closing and opening a circuit. Aluminum foil is a very cheap material compared to the expensive metal weavings.

Buttons of metal, used for trousers as a switch. (Coming.)

Big ring of metal used as a switch. (Coming.)

Piece of aluminum foil on fabric using flysofix as a switch which folds to close the circuit and start an led.

ATtiny85 swatches

The ATtint85 as a cheap workhorse.

Charlieplexing, 8 leds connected to the four pins of the ATtiny85.

Folding with ATtiny85 and 5 leds. An example of interaction between material and led.

Sensor swatches

Sensors are one part of the sensor, actuator, microcontroller trinity.

Tilt sensor made of three conductive patches which form a circle. The circuit is closed by swinging the bead over these patches. Example of low tech sensor. (Coming.)

LDR in combination with a fixed resistor. ATtiny85 can blink with 2 leds. A script can make the leds blink, glow.

Themistor (NTC) with a fixed resistor. ATtiny85 can blink with 2 leds.

Pressure sensor with a fixed resistor. ATtiny85 can blink with 2 leds.

Arduino Pro Mini with LCD screen and 3 sensors, light, temperature and pollution. Lipo battery plus charger. (Coming.)

Led swatches

The variations in leds is endless. Interesting is the difference in voltage between the colors, which might lead to surprises if you connect different colors in parallel.

Different red leds, from 10mm, 5mm, 1mm and an smd led.

Parallel leds in a circuit with an open connection, use something conductive to close the circuit. Coming soon.

RGB neopixels. ATtiny85. One of the neopixels is covered by filling and cloth to investigate the effect of the light under fabric. (Coming.)

A piece of copper strip with smd leds soldered on the copper strip. Parallel connections.

555 swatches

The 555 is an old component, used for a timer, but also for making noise, sirens and alarms.

Textile speaker. 9V, use of magnets. The 9V is necessary because the textile speaker is producing a very low volume level. Coming soon.

Transistor swatches

Transistor acting as an amplifier and as a switch.

Darlington array. By amplifying the signal with 2 transistors you can detect if a human touches a pad of aluminum foil. You need to touch both pads.

Transistor switch. LDR in connection with a fixed resistor makes the BC457 into a switch.

Joule Thief. A double coil and a transistor act as a boost circuit, so an led can be lit by a 1.5 Volt battery. (No free energy of course).