1  # Basic example of using the Bi-color 24 segment bargraph display.
 2  # This example and library is meant to work with Adafruit CircuitPython API.
 3  # Author: Carter Nelson
 4  # License: Public Domain
 5  
 6  import time
 7  
 8  # Import board related modules
 9  import board
10  import busio
11  
12  # Import the Bicolor24 driver from the HT16K33 module
13  from adafruit_ht16k33.bargraph import Bicolor24
14  
15  # Create the I2C interface
16  i2c = busio.I2C(board.SCL, board.SDA)
17  
18  # Create the LED bargraph class.
19  bc24 = Bicolor24(i2c)
20  
21  # Set individual segments of bargraph
22  bc24[0] = bc24.LED_RED
23  bc24[1] = bc24.LED_GREEN
24  bc24[2] = bc24.LED_YELLOW
25  
26  time.sleep(2)
27  
28  # Turn them all off
29  bc24.fill(bc24.LED_OFF)
30  
31  # Turn them on in a loop
32  for i in range(24):
33      bc24[i] = bc24.LED_RED
34      time.sleep(0.1)
35      bc24[i] = bc24.LED_OFF
36  
37  time.sleep(1)
38  
39  # Fill the entrire bargraph
40  bc24.fill(bc24.LED_GREEN)