kopia lustrzana https://github.com/peterhinch/micropython-nano-gui
43 wiersze
1.5 KiB
Python
43 wiersze
1.5 KiB
Python
|
# epd29_sync.py Config for synchronous applications on 2.9" ePaper.
|
||
|
|
# Customise for your hardware config
|
||
|
|
|
||
|
|
# Released under the MIT License (MIT). See LICENSE.
|
||
|
|
# Copyright (c) 2020 Peter Hinch
|
||
|
|
|
||
|
|
# Supports Adafruit 2.9" monochrome EPD with interface board connected to Pyboard.
|
||
|
|
# Interface breakout: https://www.adafruit.com/product/4224
|
||
|
|
# Display: https://www.adafruit.com/product/4262
|
||
|
|
|
||
|
|
# 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.
|
||
|
|
|
||
|
|
# WIRING. Adafruit schematic linked on the product web pagerefers to a different
|
||
|
|
# device. These are the pins on the physical board.
|
||
|
|
# Pyb Breakout
|
||
|
|
# Vin Vin (1)
|
||
|
|
# Gnd Gnd (3)
|
||
|
|
# Y8 MOSI (6)
|
||
|
|
# Y6 SCK (4)
|
||
|
|
# Y4 BUSY (11) (Low = Busy)
|
||
|
|
# Y3 RST (10)
|
||
|
|
# Y2 CS (7)
|
||
|
|
# Y1 DC (8)
|
||
|
|
import machine
|
||
|
|
import gc
|
||
|
|
|
||
|
|
from drivers.epaper.epd29 import EPD as SSD
|
||
|
|
|
||
|
|
pdc = machine.Pin('Y1', machine.Pin.OUT_PP, value=0)
|
||
|
|
pcs = machine.Pin('Y2', machine.Pin.OUT_PP, value=1)
|
||
|
|
prst = machine.Pin('Y3', machine.Pin.OUT_PP, value=1)
|
||
|
|
pbusy = machine.Pin('Y4', machine.Pin.IN)
|
||
|
|
|
||
|
|
# Baudrate. Adafruit use 1MHz at
|
||
|
|
# https://learn.adafruit.com/adafruit-eink-display-breakouts/circuitpython-code-2
|
||
|
|
# Datasheet P35 indicates up to 10MHz.
|
||
|
|
spi = machine.SPI(2, baudrate=5_000_000)
|
||
|
|
gc.collect() # Precaution before instantiating framebuf
|
||
|
|
ssd = SSD(spi, pcs, pdc, prst, pbusy) # Create a display instance
|
||
|
|
# ssd.demo_mode = True
|