79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
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# SPDX-License-Identifier: MIT
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# Basic example of setting digits on a LED segment display.
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# This example and library is meant to work with Adafruit CircuitPython API.
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# Author: Tony DiCola
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# License: Public Domain
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import time
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# Import all board pins.
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import board
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import busio
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# Import the HT16K33 LED segment module.
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from adafruit_ht16k33 import segments
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# Create the I2C interface.
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i2c = busio.I2C(board.SCL, board.SDA)
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# Create the LED segment class.
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# This creates a 7 segment 4 character display:
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display = segments.Seg7x4(i2c)
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# Or this creates a 14 segment alphanumeric 4 character display:
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# display = segments.Seg14x4(i2c)
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# Or this creates a big 7 segment 4 character display
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# display = segments.BigSeg7x4(i2c)
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# Finally you can optionally specify a custom I2C address of the HT16k33 like:
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# display = segments.Seg7x4(i2c, address=0x70)
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# Clear the display.
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display.fill(0)
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# Can just print a number
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display.print(42)
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time.sleep(2)
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# Or, can print a hexadecimal value
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display.print_hex(0xFF23)
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time.sleep(2)
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# Or, print the time
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display.print("12:30")
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time.sleep(2)
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display.colon = False
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# Or, can set indivdual digits / characters
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# Set the first character to '1':
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display[0] = "1"
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# Set the second character to '2':
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display[1] = "2"
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# Set the third character to 'A':
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display[2] = "A"
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# Set the forth character to 'B':
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display[3] = "B"
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time.sleep(2)
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# Or, can even set the segments to make up characters
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if isinstance(display, segments.Seg7x4):
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# 7-segment raw digits
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display.set_digit_raw(0, 0xFF)
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display.set_digit_raw(1, 0b11111111)
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display.set_digit_raw(2, 0x79)
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display.set_digit_raw(3, 0b01111001)
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else:
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# 14-segment raw digits. Same character (0) displayed using four different methods.
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# 16-bit Hexadecimal number
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display.set_digit_raw(0, 0x2D3F)
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# 16-bit Binary number
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display.set_digit_raw(1, 0b0010110100111111)
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# 8-bit Binary Tuple
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display.set_digit_raw(2, (0b00101101, 0b00111111))
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# 8-bit Hexadecimal List
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display.set_digit_raw(3, [0x2D, 0x3F])
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time.sleep(2)
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# Show a looping marquee
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display.marquee("Deadbeef 192.168.100.102... ", 0.2)
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