Ability to test new circuits

The swatches demonstrate the following analog circuits:

- Closed

- Parallel

- Series

- Open

- Pressure resistor

Powering each swatch with 3V

The last page of the swatch book is the "power" page that extends beyond the height of the other pages.

The page holds a 3V coin cell battery in a sewn battery holder with two alligator clips soldered on. 

The alligator clips are fed through the front side with grommets for easy no hassle access to the power source. 

Demonstrating each swatch

Each swatch has two pieces of conductive fabric in the middle edge of the first layer of canvas.

The alligator clips can either power the swatches by making contact or clipping onto the conductive fabric.

--------

(Swatch to the right is a closed circuit using a sewable "sequin" LED.) 

Closed Circuit (Single LED)

Circuit demonstrates how to connect a standard 5mm LED and resistor to conductive thread:

• 1 x 5mm LED
• 1 x 220 resistor
• Conductive thread

** compression quality impacts the brightness of the red LED in the documentation**

Two Parallel Circuits Swatches

First circuit demonstrates how to sew a parallel circuit:

• 3 x 5mm LEDs in parallel
• 3 x 220ohm resistor (for each LED)
• Conductive thread

Second circuit demonstrates that more resistance impacts LED brightness:

• 3 x 5mm LEDs in parallel, each with a different resistor
• LED 1 uses a 220 ohm resistor
• LED 2 uses a 1k ohm resistor
• LED 3 uses a 10k ohm resistor
• Conductive thread

Series Circuit (Single LED)

Circuit demonstrates how adding LEDs in series requires greater voltage to activate the LED. 

• 3 x 5mm LED
• 1 x 220 resistor
• 2 x 3V batteries 
• Conductive thread

Open Circuit - Pinch Switch

Circuit demonstrates how to close an open circuit using conductive fabric through a "pinch" interaction. 

• 1 x 5mm LED
• 1 x 220 resistor
• Conductive fabric
• Conductive thread

Open Circuit - Snap Switch

Circuit demonstrates how to close an open circuit through the use of metal snaps and conductive fabric. 

• 1 x 5mm LED
• 1 x 220 resistor
• Metal snaps 
• Conductive fabric
• Conductive thread

** compression quality impacts the brightness of the yellow LED in the documentation**

Open Circuit - Sliding Switch 

** Multi LED

Circuit demonstrates how to add multiple LEDS in an open circuit using conductive fabric as the common ground. 

• 3 x 5mm LED
• 3 x 220 resistor
• Conductive fabric
• Conductive thread

** compression quality impacts the brightness of the first green LED in the documentation**

Open Circuit - Zipper Switch 

** Multi LED

Circuit demonstrates how to add multiple LEDS in an open circuit using a zipper with conductive thread. 

The conductive thread is in between the zipper teeth which connects the the common ground to the LEDs once zipped. 

• 3 x 5mm LED
• 3 x 220 resistor
• Zipper
• Conductive thread 

** compression quality impacts the brightness of the first green LED in the documentation**

Closed circuit - Analog Resistor 

Circuit demonstrates how to add a variable resistor to change the brightness of an LED.

The variable resistor created here is a pressure sensor made out of conductive fabric and velostat.

• 1 x 5mm LED
• Velostat
• Conductive fabric 
• Conductive thread

** compression quality impacts the brightness of the first green LED in the documentation**