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from machine import Pin
#from machine import Signal
from machine import SPI
from drivers.battery import Battery
from drivers.signal import Signal
from drivers.st7789 import ST7789_SPI
class Display(ST7789_SPI):
def __init__(self):
spi = SPI(0)
# Mode 3, maximum clock speed!
spi.init(polarity=1, phase=1, baudrate=8000000)
# Configure the display
cs = Pin("DISP_CS", Pin.OUT)
dc = Pin("DISP_DC", Pin.OUT)
rst = Pin("DISP_RST", Pin.OUT)
super().__init__(240, 240, spi, cs=cs, dc=dc, res=rst)
class Backlight(object):
lo = Pin("BL_LO", Pin.OUT, value=0)
mid = Pin("BL_MID", Pin.OUT, value=1)
hi = Pin("BL_HI", Pin.OUT, value=1)
def __init__(self, level=1):
self.set(level)
def set(self, level):
hi = 1
mid = 1
lo = 1
if level >= 3:
hi = 0
elif level == 2:
mid = 0
elif level == 1:
lo = 0
self.hi(hi)
self.mid(mid)
self.lo(lo)
backlight = Backlight(0)
display = Display()
backlight.set(1)
battery = Battery(
Pin('BATTERY', Pin.IN),
Signal(Pin('CHARGING', Pin.IN), invert=True),
Signal(Pin('USB_PWR', Pin.IN), invert=True))
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