mirror of
https://github.com/tinygo-org/drivers.git
synced 2026-08-03 06:27:47 +00:00
buzzer: add simple buzzer implementation
Signed-off-by: Ron Evans <ron@hybridgroup.com>
This commit is contained in:
Ron Evans
Ayke
@@ -44,5 +44,6 @@ smoke-test:
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tinygo build -size short -o ./build/test.elf -target=circuitplay-express ./examples/ws2812/main.go
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tinygo build -size short -o ./build/test.elf -target=trinket-m0 ./examples/bme280/main.go
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tinygo build -size short -o ./build/test.elf -target=circuitplay-express ./examples/microphone/main.go
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tinygo build -size short -o ./build/test.elf -target=circuitplay-express ./examples/buzzer/main.go
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test: clean fmt-check smoke-test
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@@ -61,6 +61,7 @@ func main() {
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| [BlinkM RGB LED](http://thingm.com/fileadmin/thingm/downloads/BlinkM_datasheet.pdf) | I2C |
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| [BME280 humidity/pressure sensor](https://cdn-shop.adafruit.com/datasheets/BST-BME280_DS001-10.pdf) | I2C |
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| [BMP180 barometer](https://cdn-shop.adafruit.com/datasheets/BST-BMP180-DS000-09.pdf) | I2C |
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| [Buzzer](https://en.wikipedia.org/wiki/Buzzer#Piezoelectric) | GPIO |
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| [DS1307 real time clock](https://datasheets.maximintegrated.com/en/ds/DS1307.pdf) | I2C |
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| [DS3231 real time clock](https://datasheets.maximintegrated.com/en/ds/DS3231.pdf) | I2C |
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| ["Easystepper" stepper motor controller](https://en.wikipedia.org/wiki/Stepper_motor) | GPIO |
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@@ -0,0 +1,71 @@
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// Package buzzer provides a very simplistic driver for a connected buzzer or low-fidelity speaker.
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//
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package buzzer // import "tinygo.org/x/drivers/buzzer"
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import (
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"machine"
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"time"
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)
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// Device wraps a GPIO connection to a buzzer.
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type Device struct {
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pin machine.Pin
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High bool
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BPM float64
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}
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// New returns a new buzzer driver given which pin to use
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func New(pin machine.Pin) Device {
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return Device{
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pin: pin,
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High: false,
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BPM: 96.0,
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}
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}
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// On sets the buzzer to a high state.
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func (l *Device) On() (err error) {
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l.pin.Set(true)
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l.High = true
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return
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}
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// Off sets the buzzer to a low state.
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func (l *Device) Off() (err error) {
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l.pin.Set(false)
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l.High = false
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return
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}
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// Toggle sets the buzzer to the opposite of it's current state
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func (l *Device) Toggle() (err error) {
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if l.High {
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err = l.Off()
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} else {
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err = l.On()
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}
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return
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}
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// Tone plays a tone of the requested frequency and duration.
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func (l *Device) Tone(hz, duration float64) (err error) {
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// calculation based off https://www.arduino.cc/en/Tutorial/Melody
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tone := (1.0 / (2.0 * hz)) * 1000000.0
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tempo := ((60 / l.BPM) * (duration * 1000))
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for i := 0.0; i < tempo*1000; i += tone * 2.0 {
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if err = l.On(); err != nil {
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return
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}
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time.Sleep(time.Duration(tone) * time.Microsecond)
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if err = l.Off(); err != nil {
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return
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}
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time.Sleep(time.Duration(tone) * time.Microsecond)
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}
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return
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}
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+121
@@ -0,0 +1,121 @@
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package buzzer
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const (
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Whole = 4
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Half = 2
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Quarter = 1
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Eighth = 0.500
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)
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// The values seem like they are little off, so feel free to make corrections, as needed.
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const (
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Rest = 0
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C0 = 16.35
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Db0 = 17.32
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D0 = 18.35
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Eb0 = 19.45
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E0 = 20.60
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F0 = 21.83
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Gb0 = 23.12
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G0 = 24.50
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Ab0 = 25.96
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A0 = 27.50
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Bb0 = 29.14
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B0 = 30.87
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C1 = 32.70
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Db1 = 34.65
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D1 = 36.71
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Eb1 = 38.89
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E1 = 41.20
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F1 = 43.65
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Gb1 = 46.25
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G1 = 49.00
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Ab1 = 51.91
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A1 = 55.00
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Bb1 = 58.27
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B1 = 61.74
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C2 = 65.41
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Db2 = 69.30
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D2 = 73.42
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Eb2 = 77.78
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E2 = 82.41
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F2 = 87.31
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Gb2 = 92.50
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G2 = 98.00
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Ab2 = 103.83
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A2 = 110.00
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Bb2 = 116.54
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B2 = 123.47
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C3 = 130.81
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Db3 = 138.59
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D3 = 146.83
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Eb3 = 155.56
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E3 = 164.81
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F3 = 174.61
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Gb3 = 185.00
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G3 = 196.00
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Ab3 = 207.65
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A3 = 220.00
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Bb3 = 233.08
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B3 = 246.94
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C4 = 261.63
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Db4 = 277.18
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D4 = 293.66
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Eb4 = 311.13
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E4 = 329.63
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F4 = 349.23
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Gb4 = 369.99
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G4 = 392.00
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Ab4 = 415.30
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A4 = 440.00
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Bb4 = 466.16
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B4 = 493.88
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C5 = 523.25
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Db5 = 554.37
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D5 = 587.33
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Eb5 = 622.25
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E5 = 659.25
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F5 = 698.46
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Gb5 = 739.99
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G5 = 783.99
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Ab5 = 830.61
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A5 = 880.00
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Bb5 = 932.33
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B5 = 987.77
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C6 = 1046.50
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Db6 = 1108.73
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D6 = 1174.66
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Eb6 = 1244.51
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E6 = 1318.51
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F6 = 1396.91
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Gb6 = 1479.98
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G6 = 1567.98
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Ab6 = 1661.22
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A6 = 1760.00
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Bb6 = 1864.66
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B6 = 1975.53
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C7 = 2093.00
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Db7 = 2217.46
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D7 = 2349.32
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Eb7 = 2489.02
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E7 = 2637.02
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F7 = 2793.83
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Gb7 = 2959.96
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G7 = 3135.96
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Ab7 = 3322.44
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A7 = 3520.00
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Bb7 = 3729.31
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B7 = 3951.07
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C8 = 4186.01
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Db8 = 4434.92
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D8 = 4698.63
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Eb8 = 4978.03
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E8 = 5274.04
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F8 = 5587.65
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Gb8 = 5919.91
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G8 = 6271.93
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Ab8 = 6644.88
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A8 = 7040.00
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Bb8 = 7458.62
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B8 = 7902.13
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)
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@@ -0,0 +1,40 @@
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package main
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import (
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"machine"
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"time"
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"tinygo.org/x/drivers/buzzer"
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)
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type note struct {
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tone float64
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duration float64
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}
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func main() {
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speaker := machine.PA30
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speaker.Configure(machine.PinConfig{Mode: machine.PinOutput})
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speaker.Set(true)
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bzrPin := machine.A0
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bzrPin.Configure(machine.PinConfig{Mode: machine.PinOutput})
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bzr := buzzer.New(machine.A0)
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song := []note{
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{buzzer.C4, buzzer.Quarter},
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{buzzer.D4, buzzer.Quarter},
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{buzzer.E4, buzzer.Quarter},
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{buzzer.F4, buzzer.Quarter},
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{buzzer.G4, buzzer.Quarter},
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{buzzer.A4, buzzer.Quarter},
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{buzzer.B4, buzzer.Quarter},
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{buzzer.C5, buzzer.Quarter},
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}
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for _, val := range song {
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bzr.Tone(val.tone, val.duration)
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time.Sleep(10 * time.Millisecond)
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}
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}
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