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

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Python

# alevel.py Test/demo program for Adafruit ssd1351-based OLED displays
# Adafruit 1.5" 128*128 OLED display: https://www.adafruit.com/product/1431
# Adafruit 1.27" 128*96 display https://www.adafruit.com/product/1673
# Released under the MIT License (MIT). See LICENSE.
# Copyright (c) 2018-2020 Peter Hinch
# WIRING
# Pyb SSD
# 3v3 Vin
# Gnd Gnd
# X1 DC
# X2 CS
# X3 Rst
# X6 CLK
# X8 DATA
# Demo of initialisation procedure designed to minimise risk of memory fail
# when instantiating the frame buffer. The aim is to do this as early as
# possible before importing other modules.
import gc
# Initialise hardware
from ssd1351_setup import ssd # Create a display instance
from gui.core.nanogui import Dial, Pointer, refresh
refresh(ssd) # Initialise and clear display.
# Now import other modules
import utime
import pyb
from gui.core.writer import CWriter
import gui.fonts.arial10 as arial10
from gui.core.colors import *
def main():
print('alevel test is running.')
CWriter.set_textpos(ssd, 0, 0) # In case previous tests have altered it
wri = CWriter(ssd, arial10, GREEN, BLACK, verbose=False)
wri.set_clip(True, True, False)
acc = pyb.Accel()
dial = Dial(wri, 5, 5, height = 75, ticks = 12, bdcolor=None,
label='Tilt Pyboard', style = Dial.COMPASS, pip=YELLOW) # Border in fg color
ptr = Pointer(dial)
scale = 1/40
while True:
x, y, z = acc.filtered_xyz()
# Depending on relative alignment of display and Pyboard this line may
# need changing: swap x and y or change signs so arrow points in direction
# board is tilted.
ptr.value(-y*scale + 1j*x*scale, YELLOW)
refresh(ssd)
utime.sleep_ms(200)
main()