micropython-nano-gui/gui/demos/epd29_sync.py

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2.1 KiB
Python

# epd29_sync.py Demo of synchronous code on 2.9" EPD display
# Released under the MIT License (MIT). See LICENSE.
# Copyright (c) 2020 Peter Hinch
# color_setup must set landcsape True, asyn False and must not set demo_mode
from math import pi, sin
from color_setup import ssd
from gui.core.writer import Writer
from gui.core.nanogui import refresh
from gui.core.fplot import CartesianGraph, Curve
from gui.widgets.meter import Meter
from gui.widgets.label import Label
from gui.widgets.dial import Dial, Pointer
# Fonts
import gui.fonts.arial10 as arial10
import gui.fonts.freesans20 as large
wri = Writer(ssd, arial10, verbose=False)
wri.set_clip(False, False, False)
wri_large = Writer(ssd, large, verbose=False)
wri_large.set_clip(False, False, False)
# 296*128
def graph():
row, col, ht, wd = 5, 140, 75, 150
def populate():
x = -0.998
while x < 1.01:
z = 6 * pi * x
y = sin(z) / z
yield x, y
x += 0.05
g = CartesianGraph(wri, row, col, height = ht, width = wd, bdcolor=False)
curve2 = Curve(g, None, populate())
Label(wri, row + ht + 5, col - 10, '-2.0 t: secs')
Label(wri, row + ht + 5, col - 8 + int(wd//2), '0.0')
Label(wri, row + ht + 5, col - 10 + wd, '2.0')
def compass():
dial = Dial(wri, 5, 5, height = 75, ticks = 12, bdcolor=None,
label='Direction', style = Dial.COMPASS)
ptr = Pointer(dial)
ptr.value(1 + 1j)
def meter():
m = Meter(wri, 5, 100, height = 75, divisions = 4,
label='Peak', style=Meter.BAR, legends=('0', '50', '100'))
m.value(0.72)
def labels():
row = 100
col = 0
Label(wri_large, row, col, 'Seismograph')
col = 140
Label(wri, row, col + 0, 'Event time')
Label(wri, row, col + 60, '01:35', bdcolor=None)
Label(wri, row, col + 95, 'UTC')
row = 115
Label(wri, row, col + 0, 'Event date')
Label(wri, row, col + 60, '6th Jan 2021', bdcolor=None)
def main():
refresh(ssd, True)
graph()
compass()
meter()
labels()
ssd.wait_until_ready()
refresh(ssd)
print('Waiting for display update')
ssd.wait_until_ready()
main()