def write_large_number(largenumber, spidevice):
# split number over the displays
device = led.sevensegment(cascaded=2, spi_device=spidevice)
num_str = str(largenumber)
num_len = len(str(largenumber))
device.clear(deviceId=0)
device.clear(deviceId=1)
print i
if num_len > MAX_NUM_DIGITS_D1:
str_d1 = num_str[-MAX_NUM_DIGITS_D1:]
print str_d1
num_d1 = int(str_d1)
print num_d1
str_d2 = num_str[0 : len(num_str) - MAX_NUM_DIGITS_D1]
print str_d2
num_d2 = int(str_d2)
print num_d2
device.write_number(deviceId=1, zeroPad=True, value=num_d1)
device.write_number(deviceId=0, value=num_d2)
elif num_len > (MAX_NUM_DIGITS_D1 + MAX_NUM_DIGITS_D2):
print "Number too large for display"
else:
device.write_number(deviceId=1, value=largenumber)
def write_large_number(largenumber, spidevice):
# split number over the displays
device = led.sevensegment(cascaded=2, spi_device=spidevice)
num_str = str(largenumber)
num_len = len(str(largenumber))
device.clear(deviceId=0)
device.clear(deviceId=1)
print i
if (num_len > MAX_NUM_DIGITS_D1):
str_d1 = num_str[-MAX_NUM_DIGITS_D1:]
print str_d1
num_d1 = int(str_d1)
print num_d1
str_d2 = num_str[0:len(num_str) - MAX_NUM_DIGITS_D1]
print str_d2
num_d2 = int(str_d2)
print num_d2
device.write_number(deviceId=1, zeroPad=True, value=num_d1)
device.write_number(deviceId=0, value=num_d2)
elif num_len > (MAX_NUM_DIGITS_D1 + MAX_NUM_DIGITS_D2):
print "Number too large for display"
else:
device.write_number(deviceId=1, value=largenumber)
def main():
# create seven segment device
device = led.sevensegment(cascaded=1)
print('Simple text...')
for _ in range(8):
device.write_text(0, "HELLO")
time.sleep(0.6)
device.write_text(0, " GOODBYE")
time.sleep(0.6)
# Scrolling Alphabet Text
print('Scrolling alphabet text...')
device.show_message("HELLO EVERYONE!")
device.show_message("0123456789 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ")
# Digit futzing
date(device, 0)
time.sleep(5)
clock(device, 0, seconds=10)
# Brightness
print('Brightness...')
for x in range(5):
for intensity in range(16):
device.brightness(intensity)
time.sleep(0.1)
device.brightness(7)
# Scrolling
print('Scrolling...')
for x in range(2):
for _ in range(8):
device.scroll_right()
time.sleep(0.1)
time.sleep(1)
device.clear()
# Negative numbers
print('Negative numbers...')
for x in range(-30, 128):
device.write_number(deviceId=0, value=x)
time.sleep(0.05)
# Hex numbers
print('Hex numbers...')
for x in range(0xfa909, 0xfab2a):
device.write_number(deviceId=0, value=x, base=16, leftJustify=True)
time.sleep(0.025)
print('Clear device...')
device.clear()
time.sleep(1)
print('Random numbers...')
a = random.randint(-999, 999)
# b = random.randint(-3223, 999)
device.brightness(3)
for x in range(500):
a += random.random() * 10
# b -= 1
# c = a + b / (random.random() * 43)
device.write_number(deviceId=0, value=a, decimalPlaces=1)
# device.write_number(deviceId=1, value=b, zeroPad=True)
# device.write_number(deviceId=2, value=c, decimalPlaces=2)
time.sleep(0.5)
import max7219.led as led
from time import *
MAX_NUM_DIGITS_D2 = 8
MAX_NUM_DIGITS_D1 = 8
device = led.sevensegment()
def write_large_number(largenumber, spidevice):
# split number over the displays
device = led.sevensegment(cascaded=2, spi_device=spidevice)
num_str = str(largenumber)
num_len = len(str(largenumber))
device.clear(deviceId=0)
device.clear(deviceId=1)
print i
if num_len > MAX_NUM_DIGITS_D1:
str_d1 = num_str[-MAX_NUM_DIGITS_D1:]
print str_d1
num_d1 = int(str_d1)
print num_d1
str_d2 = num_str[0 : len(num_str) - MAX_NUM_DIGITS_D1]
print str_d2
num_d2 = int(str_d2)
print num_d2
device.write_number(deviceId=1, zeroPad=True, value=num_d1)
device.write_number(deviceId=0, value=num_d2)
elif num_len > (MAX_NUM_DIGITS_D1 + MAX_NUM_DIGITS_D2):
print "Number too large for display"
else:
month = now.month
year = now.year - 2000
# Set day
device.letter(deviceId, 8, int(day / 10)) # Tens
device.letter(deviceId, 7, day % 10) # Ones
device.letter(deviceId, 6, '-') # dash
# Set day
device.letter(deviceId, 5, int(month / 10)) # Tens
device.letter(deviceId, 4, month % 10) # Ones
device.letter(deviceId, 3, '-') # dash
# Set day
device.letter(deviceId, 2, int(year / 10)) # Tens
device.letter(deviceId, 1, year % 10) # Ones
device = led.sevensegment()
# Write date
date(device, 0)
# Adjust Brightness
for x in xrange(5):
for intensity in xrange(16):
device.brightness(intensity)
time.sleep(0.1)
device.brightness(7)
# Scroll Text
for i in xrange(8):
device.scroll_right()
def main():
# create seven segment device
device = led.sevensegment(cascaded=1)
print('Simple text...')
for _ in range(8):
device.write_text(0, "HELLO")
time.sleep(0.6)
device.write_text(0, " GOODBYE")
time.sleep(0.6)
# Scrolling Alphabet Text
print('Scrolling alphabet text...')
device.show_message("HELLO EVERYONE!")
device.show_message(
"0123456789 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ")
# Digit futzing
date(device, 0)
time.sleep(5)
clock(device, 0, seconds=10)
# Brightness
print('Brightness...')
for x in range(5):
for intensity in range(16):
device.brightness(intensity)
time.sleep(0.1)
device.brightness(7)
# Scrolling
print('Scrolling...')
for x in range(2):
for _ in range(8):
device.scroll_right()
time.sleep(0.1)
time.sleep(1)
device.clear()
# Negative numbers
print('Negative numbers...')
for x in range(-30, 128):
device.write_number(deviceId=0, value=x)
time.sleep(0.05)
# Hex numbers
print('Hex numbers...')
for x in range(0xfa909, 0xfab2a):
device.write_number(deviceId=0, value=x, base=16, leftJustify=True)
time.sleep(0.025)
print('Clear device...')
device.clear()
time.sleep(1)
print('Random numbers...')
a = random.randint(-999, 999)
# b = random.randint(-3223, 999)
device.brightness(3)
for x in range(500):
a += random.random() * 10
# b -= 1
# c = a + b / (random.random() * 43)
device.write_number(deviceId=0, value=a, decimalPlaces=1)
# device.write_number(deviceId=1, value=b, zeroPad=True)
# device.write_number(deviceId=2, value=c, decimalPlaces=2)
time.sleep(0.5)
#!/usr/bin/env python
import max7219.led as led
import time
from max7219.font import proportional, SINCLAIR_FONT, TINY_FONT, CP437_FONT
from random import randrange
# device = led.matrix(cascaded=1)
device = led.sevensegment(cascaded=2, vertical=False)
# device.orientation(180);
device.show_message("MAX7219 LED Matrix Demo")
def binary_clock(device):
dt = datetime.now()
hour = dt.hour
if (dt.hour > 12):
hour = dt.hour - 12
draw_wide_row(device, hour, 0)
draw_wide_row(device, hour, 1)
draw_bcd_row(device, dt.minute, 3)
draw_bcd_row(device, dt.second, 5)
def totp(device, deviceId, secret):
token = otp.get_totp(secret)
device.write_number(deviceId, value=token)
# Main Program
device = led.sevensegment(cascaded=3)
device.brightness(0)
with open('config.json') as json_data_file:
config = json.load(json_data_file)
secret = config['otp']['secret']
while True:
time.sleep(.5)
totp(device, 2, secret)
binary_clock(device)
clock(device, 1)
for _ in xrange(seconds):
now = datetime.now()
hour = now.hour
minute = now.minute
second = now.second
dot = second % 2 == 0 # calculate blinking dot
# Set hours
device.letter(deviceId, 4, int(hour / 10)) # Tens
device.letter(deviceId, 3, hour % 10, dot) # Ones
# Set minutes
device.letter(deviceId, 2, int(minute / 10)) # Tens
device.letter(deviceId, 1, minute % 10) # Ones
time.sleep(1)
device = led.sevensegment(cascaded=3)
# Alphabet Text
device.show_message("HELLO EVERYONE!")
device.show_message(
"0123456789 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ")
# Digit futzing
date(device, 1)
clock(device, 0, seconds=10)
# Brightness
for x in xrange(5):
for intensity in xrange(16):
device.brightness(intensity)
time.sleep(0.1)
#!/usr/bin/env python
import max7219.led as led
import time
import random
display = led.sevensegment(cascaded=3)
for x in range(-30, 128):
display.write_number(deviceId=0, value=x)
time.sleep(0.05)
for x in range(99823, 100023):
display.write_number(deviceId=1, value=x, leftJustify=True)
time.sleep(0.05)
display.clear(deviceId=1)
time.sleep(1)
display.clear()
time.sleep(1)
a = random.randint(-999, 9999)
b = random.randint(-3223, 9999)
for x in range(500):
a += random.random() * 10
b -= 1
c = a + b / random.random()
display.write_number(deviceId=0, value=a, decimalPlaces=3)
display.write_number(deviceId=1, value=b, zeroPad=True)
def __init__(self):
self.device = led.sevensegment(cascaded=1)
self.device.brightness(7)
