142 lines
3.3 KiB
Python
142 lines
3.3 KiB
Python
# This example shows you how you can use Pico Explorer's onboard buzzer as a speaker to play different notes and string them together into a bleepy tune.
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# It uses code written by Avram Piltch - check out his Tom's Hardware article! https://www.tomshardware.com/uk/how-to/buzzer-music-raspberry-pi-pico
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# You'll need to connect a jumper wire between GPO and AUDIO on the Explorer Base to hear noise.
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import utime
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import picoexplorer as explorer
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# Set up and initialise Pico Explorer
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buf = bytearray(explorer.get_width() * explorer.get_height() * 2)
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explorer.init(buf)
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# tells Pico Explorer which pin you'll be using for noise
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explorer.set_audio_pin(0)
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# this handy list converts notes into frequencies, which you can use with the explorer.set_tone function
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tones = {
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"B0": 31,
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"C1": 33,
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"CS1": 35,
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"D1": 37,
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"DS1": 39,
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"E1": 41,
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"F1": 44,
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"FS1": 46,
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"G1": 49,
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"GS1": 52,
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"A1": 55,
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"AS1": 58,
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"B1": 62,
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"C2": 65,
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"CS2": 69,
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"D2": 73,
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"DS2": 78,
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"E2": 82,
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"F2": 87,
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"FS2": 93,
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"G2": 98,
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"GS2": 104,
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"A2": 110,
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"AS2": 117,
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"B2": 123,
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"C3": 131,
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"CS3": 139,
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"D3": 147,
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"DS3": 156,
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"E3": 165,
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"F3": 175,
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"FS3": 185,
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"G3": 196,
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"GS3": 208,
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"A3": 220,
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"AS3": 233,
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"B3": 247,
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"C4": 262,
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"CS4": 277,
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"D4": 294,
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"DS4": 311,
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"E4": 330,
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"F4": 349,
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"FS4": 370,
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"G4": 392,
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"GS4": 415,
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"A4": 440,
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"AS4": 466,
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"B4": 494,
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"C5": 523,
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"CS5": 554,
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"D5": 587,
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"DS5": 622,
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"E5": 659,
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"F5": 698,
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"FS5": 740,
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"G5": 784,
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"GS5": 831,
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"A5": 880,
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"AS5": 932,
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"B5": 988,
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"C6": 1047,
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"CS6": 1109,
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"D6": 1175,
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"DS6": 1245,
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"E6": 1319,
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"F6": 1397,
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"FS6": 1480,
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"G6": 1568,
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"GS6": 1661,
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"A6": 1760,
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"AS6": 1865,
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"B6": 1976,
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"C7": 2093,
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"CS7": 2217,
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"D7": 2349,
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"DS7": 2489,
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"E7": 2637,
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"F7": 2794,
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"FS7": 2960,
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"G7": 3136,
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"GS7": 3322,
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"A7": 3520,
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"AS7": 3729,
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"B7": 3951,
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"C8": 4186,
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"CS8": 4435,
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"D8": 4699,
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"DS8": 4978
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}
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# put the notes for your song in here!
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song = ["F6","F6","E6","F6","F5","P","F5","P","C6","AS5","A5","C6","F6","P","F6","P","G6","FS6","G6","G5","P","G5","P","G6","F6","E6","D6","C6","P","C6","P","D6","E6","F6","E6","D6","C6","D6","C6","AS5","A5","AS5","A5","G5","F5","G5","F5","E5","D5","C5","D5","E5","F5","G5","AS5","A5","G5","A5","F5","P","F5"]
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def clear(): # this function clears Pico Explorer's screen to black
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explorer.set_pen(0,0,0)
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explorer.clear()
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explorer.update()
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def playtone(frequency): # this function tells your program how to make noise
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explorer.set_tone(frequency)
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def bequiet(): # this function tells your program how not to make noise
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explorer.set_tone(-1)
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def playsong(song): # this function plays your song
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a = 0 # this variable keeps track of the visualiser bars
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for i in range(len(song)):
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if (song[i] == "P"):
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bequiet()
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else:
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playtone(tones[song[i]])
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explorer.set_pen(0, 255, 0) # switch to green pen
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explorer.rectangle(a, 240 - (int((tones[song[i]])/21)), 5, 240) # draw a green bar corresponding to the frequency of the note
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a += 7
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if a >= 240: # clears the screen if the green bars reach the right hand edge
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clear()
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a = 0
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explorer.update()
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utime.sleep(0.15) # change this number if you want to alter how long the notes play for
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bequiet()
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clear()
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playsong(song)
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clear()
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