add Circuit Playground-O-Phonor code
This commit is contained in:
caternuson
parent
40fcafb795
commit
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6 changed files with 8351 additions and 0 deletions
58
Circuit_Playground_O_Phonor/freq_basic.py
Executable file
58
Circuit_Playground_O_Phonor/freq_basic.py
Executable file
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import time
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import board
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import array
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import audiobusio
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#---| User Configuration |---------------------------
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SAMPLERATE = 16000
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SAMPLES = 1024
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THRESHOLD = 100
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MIN_DELTAS = 5
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DELAY = 0.2
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#----------------------------------------------------
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# Create a buffer to record into
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samples = array.array('H', [0] * SAMPLES)
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# Setup the mic input
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mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK,
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board.MICROPHONE_DATA,
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sample_rate=SAMPLERATE,
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bit_depth=16)
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while True:
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# Get raw mic data
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mic.record(samples, SAMPLES)
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# Compute DC offset (mean) and threshold level
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mean = int(sum(samples) / len(samples) + 0.5)
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threshold = mean + THRESHOLD
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# Compute deltas between mean crossing points
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# (this bit by Dan Halbert)
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deltas = []
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last_xing_point = None
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crossed_threshold = False
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for i in range(SAMPLES-1):
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sample = samples[i]
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if sample > threshold:
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crossed_threshold = True
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if crossed_threshold and sample < mean:
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if last_xing_point:
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deltas.append(i - last_xing_point)
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last_xing_point = i
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crossed_threshold = False
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# Try again if not enough deltas
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if len(deltas) < MIN_DELTAS:
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continue
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# Average the deltas
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mean = sum(deltas) / len(deltas)
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# Compute frequency
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freq = SAMPLERATE / mean
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print("crossings: {} mean: {} freq: {} ".format(len(deltas), mean, freq))
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time.sleep(DELAY)
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84
Circuit_Playground_O_Phonor/freq_neopixel.py
Executable file
84
Circuit_Playground_O_Phonor/freq_neopixel.py
Executable file
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import time
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import board
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import array
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import audiobusio
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import simpleio
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import neopixel
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#---| User Configuration |---------------------------
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SAMPLERATE = 16000
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SAMPLES = 1024
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THRESHOLD = 100
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MIN_DELTAS = 5
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DELAY = 0.2
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FREQ_LOW = 520
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FREQ_HIGH = 990
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COLORS = (
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(0xFF, 0x00, 0x00) , # pixel 0
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(0xFF, 0x71, 0x00) , # pixel 1
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(0xFF, 0xE2, 0x00) , # pixel 2
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(0xAA, 0xFF, 0x00) , # pixel 3
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(0x38, 0xFF, 0x00) , # pixel 4
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(0x00, 0xFF, 0x38) , # pixel 5
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(0x00, 0xFF, 0xA9) , # pixel 6
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(0x00, 0xE2, 0xFF) , # pixel 7
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(0x00, 0x71, 0xFF) , # pixel 8
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(0x00, 0x00, 0xFF) , # pixel 9
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)
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#----------------------------------------------------
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# Create a buffer to record into
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samples = array.array('H', [0] * SAMPLES)
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# Setup the mic input
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mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK,
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board.MICROPHONE_DATA,
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sample_rate=SAMPLERATE,
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bit_depth=16)
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# Setup NeoPixels
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pixels = neopixel.NeoPixel(board.NEOPIXEL, 10, auto_write=False)
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while True:
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# Get raw mic data
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mic.record(samples, SAMPLES)
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# Compute DC offset (mean) and threshold level
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mean = int(sum(samples) / len(samples) + 0.5)
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threshold = mean + THRESHOLD
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# Compute deltas between mean crossing points
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# (this bit by Dan Halbert)
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deltas = []
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last_xing_point = None
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crossed_threshold = False
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for i in range(SAMPLES-1):
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sample = samples[i]
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if sample > threshold:
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crossed_threshold = True
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if crossed_threshold and sample < mean:
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if last_xing_point:
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deltas.append(i - last_xing_point)
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last_xing_point = i
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crossed_threshold = False
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# Try again if not enough deltas
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if len(deltas) < MIN_DELTAS:
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continue
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# Average the deltas
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mean = sum(deltas) / len(deltas)
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# Compute frequency
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freq = SAMPLERATE / mean
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print("crossings: {} mean: {} freq: {} ".format(len(deltas), mean, freq))
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# Show on NeoPixels
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pixels.fill(0)
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pixel = round(simpleio.map_range(freq, FREQ_LOW, FREQ_HIGH, 0, 9))
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pixels[pixel] = COLORS[pixel]
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pixels.show()
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time.sleep(DELAY)
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7156
Circuit_Playground_O_Phonor/monoMMM_5_24.bdf
Normal file
7156
Circuit_Playground_O_Phonor/monoMMM_5_24.bdf
Normal file
File diff suppressed because it is too large
Load diff
862
Circuit_Playground_O_Phonor/monoMMM_5_90.bdf
Normal file
862
Circuit_Playground_O_Phonor/monoMMM_5_90.bdf
Normal file
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STARTFONT 2.1
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COMMENT
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COMMENT Converted from OpenType font "monoMMM_5.ttf" by "otf2bdf 3.0".
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COMMENT
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FONT -FreeType-monoMMM_5-Medium-R-Normal--125-900-100-100-P-695-ISO10646-1
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SIZE 90 100 100
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FONTBOUNDINGBOX 69 97 0 0
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STARTPROPERTIES 19
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FOUNDRY "FreeType"
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FAMILY_NAME "monoMMM_5"
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WEIGHT_NAME "Medium"
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SLANT "R"
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SETWIDTH_NAME "Normal"
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ADD_STYLE_NAME ""
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PIXEL_SIZE 125
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POINT_SIZE 900
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RESOLUTION_X 100
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RESOLUTION_Y 100
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SPACING "P"
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AVERAGE_WIDTH 695
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CHARSET_REGISTRY "ISO10646"
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CHARSET_ENCODING "1"
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FONT_ASCENT 126
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FONT_DESCENT 27
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COPYRIGHT "Marcelo Magalh綟s Macedo - 2009"
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_OTF_FONTFILE "monoMMM_5.ttf"
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_OTF_PSNAME "monoMMM5-Regular"
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ENDPROPERTIES
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||||
75
Circuit_Playground_O_Phonor/notes_basic.py
Executable file
75
Circuit_Playground_O_Phonor/notes_basic.py
Executable file
|
|
@ -0,0 +1,75 @@
|
|||
import time
|
||||
import board
|
||||
import array
|
||||
import audiobusio
|
||||
|
||||
#---| User Configuration |---------------------------
|
||||
SAMPLERATE = 16000
|
||||
SAMPLES = 1024
|
||||
THRESHOLD = 100
|
||||
MIN_DELTAS = 5
|
||||
DELAY = 0.2
|
||||
|
||||
# octave = 1 2 3 4 5 6 7 8
|
||||
NOTES = { "C" : (33, 65, 131, 262, 523, 1047, 2093, 4186),
|
||||
"D" : (37, 73, 147, 294, 587, 1175, 2349, 4699),
|
||||
"E" : (41, 82, 165, 330, 659, 1319, 2637, 5274),
|
||||
"F" : (44, 87, 175, 349, 698, 1397, 2794, 5588),
|
||||
"G" : (49, 98, 196, 392, 785, 1568, 3136, 6272),
|
||||
"A" : (55, 110, 220, 440, 880, 1760, 3520, 7040),
|
||||
"B" : (62, 123, 247, 494, 988, 1976, 3951, 7902)}
|
||||
#----------------------------------------------------
|
||||
|
||||
# Create a buffer to record into
|
||||
samples = array.array('H', [0] * SAMPLES)
|
||||
|
||||
# Setup the mic input
|
||||
mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK,
|
||||
board.MICROPHONE_DATA,
|
||||
sample_rate=SAMPLERATE,
|
||||
bit_depth=16)
|
||||
|
||||
while True:
|
||||
# Get raw mic data
|
||||
mic.record(samples, SAMPLES)
|
||||
|
||||
# Compute DC offset (mean) and threshold level
|
||||
mean = int(sum(samples) / len(samples) + 0.5)
|
||||
threshold = mean + THRESHOLD
|
||||
|
||||
# Compute deltas between mean crossing points
|
||||
# (this bit by Dan Halbert)
|
||||
deltas = []
|
||||
last_xing_point = None
|
||||
crossed_threshold = False
|
||||
for i in range(SAMPLES-1):
|
||||
sample = samples[i]
|
||||
if sample > threshold:
|
||||
crossed_threshold = True
|
||||
if crossed_threshold and sample < mean:
|
||||
if last_xing_point:
|
||||
deltas.append(i - last_xing_point)
|
||||
last_xing_point = i
|
||||
crossed_threshold = False
|
||||
|
||||
# Try again if not enough deltas
|
||||
if len(deltas) < MIN_DELTAS:
|
||||
continue
|
||||
|
||||
# Average the deltas
|
||||
mean = sum(deltas) / len(deltas)
|
||||
|
||||
# Compute frequency
|
||||
freq = SAMPLERATE / mean
|
||||
|
||||
print("crossings: {} mean: {} freq: {} ".format(len(deltas), mean, freq))
|
||||
|
||||
# Find corresponding note
|
||||
for note in NOTES:
|
||||
for octave, note_freq in enumerate(NOTES[note]):
|
||||
if note_freq * 0.97 <= freq <= note_freq * 1.03:
|
||||
print("-"*10)
|
||||
print("NOTE = {}{}".format(note, octave + 1))
|
||||
print("-"*10)
|
||||
|
||||
time.sleep(DELAY)
|
||||
116
Circuit_Playground_O_Phonor/notes_tft.py
Executable file
116
Circuit_Playground_O_Phonor/notes_tft.py
Executable file
|
|
@ -0,0 +1,116 @@
|
|||
import time
|
||||
import board
|
||||
import busio
|
||||
import array
|
||||
import audiobusio
|
||||
import displayio
|
||||
from adafruit_st7789 import ST7789
|
||||
from adafruit_bitmap_font import bitmap_font
|
||||
from adafruit_display_text import label
|
||||
|
||||
#---| User Configuration |---------------------------
|
||||
SAMPLERATE = 16000
|
||||
SAMPLES = 1024
|
||||
THRESHOLD = 100
|
||||
MIN_DELTAS = 5
|
||||
DELAY = 0.2
|
||||
|
||||
NOTES = { "C" : (33, 65, 131, 262, 523, 1047, 2093, 4186),
|
||||
"D" : (37, 73, 147, 294, 587, 1175, 2349, 4699),
|
||||
"E" : (41, 82, 165, 330, 659, 1319, 2637, 5274),
|
||||
"F" : (44, 87, 175, 349, 698, 1397, 2794, 5588),
|
||||
"G" : (49, 98, 196, 392, 785, 1568, 3136, 6272),
|
||||
"A" : (55, 110, 220, 440, 880, 1760, 3520, 7040),
|
||||
"B" : (62, 123, 247, 494, 988, 1976, 3951, 7902)}
|
||||
#----------------------------------------------------
|
||||
|
||||
# Create a buffer to record into
|
||||
samples = array.array('H', [0] * SAMPLES)
|
||||
|
||||
# Setup the mic input
|
||||
mic = audiobusio.PDMIn(board.MICROPHONE_CLOCK,
|
||||
board.MICROPHONE_DATA,
|
||||
sample_rate=SAMPLERATE,
|
||||
bit_depth=16)
|
||||
|
||||
# Setup TFT Gizmo
|
||||
displayio.release_displays()
|
||||
|
||||
spi = busio.SPI(board.SCL, MOSI=board.SDA)
|
||||
tft_cs = board.RX
|
||||
tft_dc = board.TX
|
||||
tft_backlight = board.A3
|
||||
|
||||
display_bus = displayio.FourWire(spi, command=tft_dc, chip_select=tft_cs)
|
||||
|
||||
display = ST7789(display_bus, width=240, height=240, rowstart=80,
|
||||
backlight_pin=tft_backlight, rotation=180)
|
||||
|
||||
# Setup the various text labels
|
||||
note_font = bitmap_font.load_font("/monoMMM_5_90.bdf")
|
||||
note_text = label.Label(note_font, text="A", color=0xFFFFFF)
|
||||
note_text.x = 90
|
||||
note_text.y = 100
|
||||
|
||||
oct_font = bitmap_font.load_font("/monoMMM_5_24.bdf")
|
||||
oct_text = label.Label(oct_font, text=" ", color=0x00FFFF)
|
||||
oct_text.x = 180
|
||||
oct_text.y = 150
|
||||
|
||||
freq_font = oct_font
|
||||
freq_text = label.Label(freq_font, text="f = 1234.5", color=0xFFFF00)
|
||||
freq_text.x = 20
|
||||
freq_text.y = 220
|
||||
|
||||
# Add everything to the display group
|
||||
splash = displayio.Group()
|
||||
splash.append(note_text)
|
||||
splash.append(oct_text)
|
||||
splash.append(freq_text)
|
||||
display.show(splash)
|
||||
|
||||
while True:
|
||||
# Get raw mic data
|
||||
mic.record(samples, SAMPLES)
|
||||
|
||||
# Compute DC offset (mean) and threshold level
|
||||
mean = int(sum(samples) / len(samples) + 0.5)
|
||||
threshold = mean + THRESHOLD
|
||||
|
||||
# Compute deltas between mean crossing points
|
||||
# (this bit by Dan Halbert)
|
||||
deltas = []
|
||||
last_xing_point = None
|
||||
crossed_threshold = False
|
||||
for i in range(SAMPLES-1):
|
||||
sample = samples[i]
|
||||
if sample > threshold:
|
||||
crossed_threshold = True
|
||||
if crossed_threshold and sample < mean:
|
||||
if last_xing_point:
|
||||
deltas.append(i - last_xing_point)
|
||||
last_xing_point = i
|
||||
crossed_threshold = False
|
||||
|
||||
# Try again if not enough deltas
|
||||
if len(deltas) < MIN_DELTAS:
|
||||
continue
|
||||
|
||||
# Average the deltas
|
||||
mean = sum(deltas) / len(deltas)
|
||||
|
||||
# Compute frequency
|
||||
freq = SAMPLERATE / mean
|
||||
|
||||
print("crossings: {} mean: {} freq: {} ".format(len(deltas), mean, freq))
|
||||
freq_text.text = "f = {:6.1f}".format(freq)
|
||||
|
||||
# Find corresponding note
|
||||
for note in NOTES:
|
||||
for octave, note_freq in enumerate(NOTES[note]):
|
||||
if note_freq * 0.97 <= freq <= note_freq * 1.03:
|
||||
print("Note: {}{}".format(note, octave + 1))
|
||||
note_text.text = note
|
||||
oct_text.text = "{}".format(octave + 1)
|
||||
|
||||
time.sleep(DELAY)
|
||||
Loading…
Reference in a new issue