Guide

Page 73
GLOSSARY
Microcontroller – A small, programmable computer built onto
a circuit board. The LilyMini is an example of a microcontroller built for
sewable circuits. The LilyMini in this kit is pre-programmed.
Negative (-) – The negative connection on a battery or hardware
component, marked with a (–) sign. The return path for current flow in a
circuit, sometimes referred to as ground.
Open Circuit – A break in the circuit that causes the flow of
electricity to stop. If your conductive thread traces leave a gap in the
circuit, it will not work. Switches create open and closed circuits to control
the flow of electricity and turn the circuit on or off.
Output – A component that can be controlled, such as an LED, buzzer,
or motor. The LilyMini uses LEDs as outputs in Project 4 of this guide.
Parallel Circuit – A type of circuit layout where positive (+) sides
of multiple components are connected together, and negative (–) sides of
the components are connected together. In this configuration, the electric
current traveling from the battery is divided among components.
Polarity – Many electrical components have a specific orientation.
Electric current can only flow in one direction through certain components,
such as LEDs. Installing a component backward will halt the flow or
function of the component. The connection points on LilyPad pieces are
marked with (+) and (–) symbols to indicate how the piece should be
installed in a circuit.
Positive (+) – The positive connection on a battery or hardware
component, marked with a (+) sign. In a circuit, electric current flows from
the power source’s positive side through components to the negative side.
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