pimoroni-pico/micropython/examples/breakout_as7262/pico_explorer_graph.py

68 wiersze
1.5 KiB
Python

from pimoroni_i2c import PimoroniI2C
from breakout_as7262 import BreakoutAS7262
import picoexplorer as display
import time
width = display.get_width()
height = display.get_height()
bar_width = width // 6
bar_height = height
display_buffer = bytearray(width * height * 2) # 2-bytes per pixel (RGB565)
display.init(display_buffer)
i2c = PimoroniI2C(20, 21)
as7 = BreakoutAS7262(i2c)
integration_time = 10 # integration time in milliseconds, max ~90ms
as7.set_gain(as7.X64)
as7.set_integration_time(integration_time)
as7.set_measurement_mode(as7.CONT_ROYGBR)
as7.set_leds(True, True)
def draw_bar(v, i):
current_bar_top = int(bar_height - (bar_height * v))
# Drawing outside of the display region will cause horrible, horrible crashes
current_bar_top = max(0, current_bar_top)
current_bar_height = bar_height - current_bar_top
display.rectangle(i * bar_width, current_bar_top, bar_width, current_bar_height - 1)
while True:
r, o, y, g, b, v = as7.read()
m = max(r, o, y, g, b, v)
display.set_pen(0, 0, 0)
display.clear()
# Red
display.set_pen(255, 0, 0)
draw_bar(r / m, 0)
# Orange
display.set_pen(255, 128, 0)
draw_bar(o / m, 1)
# Yellow
display.set_pen(255, 255, 0)
draw_bar(y / m, 2)
# Green
display.set_pen(0, 255, 0)
draw_bar(g / m, 3)
# Blue
display.set_pen(0, 0, 255)
draw_bar(b / m, 4)
# Violet
display.set_pen(255, 0, 255)
draw_bar(v / m, 5)
display.update()
time.sleep(integration_time / 1000.0)