Copyright	(c) Levent Erkok
License	BSD3
Maintainer	erkokl@gmail.com
Stability	experimental
Safe Haskell	Safe-Inferred
Language	Haskell2010

System.Hardware.Arduino.Parts.Piezo

Contents

Declaring a piezo speaker
Notes you can play, and durations
Playing a note, rest, or silencing
Play a sequence of notes:

Description

Abstractions for piezo speakers.

Synopsis

data Piezo
speaker :: Int -> Pin -> Arduino Piezo
data Note
- = A
- | B
- | C
- | D
- | E
- | F
- | G
- | R
data Duration
- = Whole
- | Half
- | Quarter
- | Eight
playNote :: Piezo -> (Note, Duration) -> Arduino ()
rest :: Piezo -> Duration -> Arduino ()
silence :: Piezo -> Arduino ()
playNotes :: Piezo -> [(Note, Duration)] -> Arduino ()

Declaring a piezo speaker

data Piezo Source #

A piezo speaker. Note that this type is abstract, use speaker to create an instance.

speaker Source #

Arguments

:: Int

Tempo. Higher numbers mean faster melodies; in general.

-> Pin

Pin controlling the piezo. Should be a pin that supports PWM mode.

-> Arduino Piezo

Create a piezo speaker instance.

Notes you can play, and durations

data Note Source #

Musical notes, notes around middle-C

Constructors

A

B

C

D

E

F

G

R

Instances

Instances details

Show Note Source #

Instance details

Defined in System.Hardware.Arduino.Parts.Piezo

Methods

showsPrec :: Int -> Note -> ShowS #

show :: Note -> String #

showList :: [Note] -> ShowS #

Eq Note Source #

Instance details

Defined in System.Hardware.Arduino.Parts.Piezo

Methods

(==) :: Note -> Note -> Bool #

(/=) :: Note -> Note -> Bool #

data Duration Source #

Beat counts

Constructors

Whole

Half

Quarter

Eight

Instances

Instances details

Show Duration Source #

Instance details

Defined in System.Hardware.Arduino.Parts.Piezo

Methods

showsPrec :: Int -> Duration -> ShowS #

show :: Duration -> String #

showList :: [Duration] -> ShowS #

Eq Duration Source #

Instance details

Defined in System.Hardware.Arduino.Parts.Piezo

Methods

(==) :: Duration -> Duration -> Bool #

(/=) :: Duration -> Duration -> Bool #

Playing a note, rest, or silencing

playNote :: Piezo -> (Note, Duration) -> Arduino () Source #

Play the given note for the duration

rest :: Piezo -> Duration -> Arduino () Source #

Rest for a given duration:

silence :: Piezo -> Arduino () Source #

Turn the speaker off

Play a sequence of notes:

playNotes :: Piezo -> [(Note, Duration)] -> Arduino () Source #

Play a sequence of notes with given durations: