76 lines
1.7 KiB
Python
76 lines
1.7 KiB
Python
from pimoroni_i2c import PimoroniI2C
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from breakout_as7262 import BreakoutAS7262
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import picographics
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import time
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display = picographics.PicoGraphics(picographics.DISPLAY_PICO_EXPLORER)
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width, height = display.get_bounds()
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bar_width = width // 6
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bar_height = height
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i2c = PimoroniI2C(20, 21)
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as7 = BreakoutAS7262(i2c)
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integration_time = 10 # integration time in milliseconds, max ~90ms
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as7.set_gain(as7.X64)
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as7.set_integration_time(integration_time)
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as7.set_measurement_mode(as7.CONT_ROYGBR)
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as7.set_leds(True, True)
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def draw_bar(v, i):
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current_bar_top = int(bar_height - (bar_height * v))
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# Drawing outside of the display region will cause horrible, horrible crashes
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current_bar_top = max(0, current_bar_top)
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current_bar_height = bar_height - current_bar_top
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display.rectangle(i * bar_width, current_bar_top, bar_width, current_bar_height - 1)
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BLACK = display.create_pen(0, 0, 0)
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RED = display.create_pen(255, 0, 0)
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ORANGE = display.create_pen(255, 128, 0)
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YELLOW = display.create_pen(255, 255, 0)
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GREEN = display.create_pen(0, 255, 0)
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BLUE = display.create_pen(0, 0, 255)
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VIOLET = display.create_pen(255, 0, 255)
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while True:
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r, o, y, g, b, v = as7.read()
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m = max(r, o, y, g, b, v)
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display.set_pen(BLACK)
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display.clear()
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# Red
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display.set_pen(RED)
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draw_bar(r / m, 0)
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# Orange
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display.set_pen(ORANGE)
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draw_bar(o / m, 1)
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# Yellow
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display.set_pen(YELLOW)
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draw_bar(y / m, 2)
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# Green
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display.set_pen(GREEN)
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draw_bar(g / m, 3)
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# Blue
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display.set_pen(BLUE)
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draw_bar(b / m, 4)
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# Violet
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display.set_pen(VIOLET)
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draw_bar(v / m, 5)
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display.update()
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time.sleep(integration_time / 1000.0)
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