import time, math # include time and math module
adc = ADC(Pin(Map.WIO_MIC)) # create ADC on built-in Mic Pin
WINDOW_SIZE = 50 # amount of previous signal entries that can be averaged together
# set variables to 0
INDEX = 0
VALUE = 0
SUM = 0
AVERAGED = 0
READINGS = [0] * WINDOW_SIZE
dB = 0
tft = LCD() # LCD initialization
tft.setRotation(3) # set screen rotation
spr = Sprite(tft) # initialize buffer
spr.createSprite(320, 75) # create buffer
ltx = 0 # saved x coordinate of bottom of needle
osx = 160 # saved x coordinate
osy = 160 # saved y coordinate
updateTime = 0 # time for next update
# create function to draw all graphics on LCD
def analogMeter():
tft.fillScreen(tft.color.YELLOW) # set background color
tft.fillRect(5, 3, 310, 158, tft.color.WHITE) # set meter box color
tft.drawRect(5, 3, 310, 158, tft.color.BLACK) # draw border line
from machine import LCD #include LCD function from machine module
lcd = LCD() #initialize TFT LCD
lcd.fillScreen(lcd.color.WHITE) #fill background color
lcd.setRotation(3) #set screen rotation
#draw for title header
lcd.fillRect(0, 0, 320, 60, lcd.color.DARKGREEN) #draw rectangle with border
lcd.setTextSize(3) #set text size
lcd.setTextColor(lcd.color.WHITE, lcd.color.DARKGREEN) #color of text
lcd.drawString("MUSIC PLAYER", 55, 15) #draw a string
#draw for volume
lcd.drawRoundRect(90, 75, 140, 60, 15,
lcd.color.BLUE) #draw round corner rectangle with border
lcd.fillTriangle(40, 105, 80, 75, 80, 135,
lcd.color.RED) #draw triangle with fill color
lcd.fillTriangle(280, 105, 240, 75, 240, 135, lcd.color.DARKGREEN)
lcd.setTextColor(lcd.color.BLACK)
lcd.drawString("VOLUME", 105, 95)
#draw for play
lcd.drawCircle(160, 190, 45, lcd.color.BLUE) #draw circle with fill color
lcd.fillTriangle(60, 185, 100, 155, 100, 215, lcd.color.RED)
lcd.fillTriangle(260, 185, 220, 155, 220, 215, lcd.color.DARKGREEN)
lcd.drawString("PLAY", 130, 180)