buf_epaper_red = bytearray(w * h // 8) # moved from frame buffer to match e-paper (portrait)
import framebuf
fb_black = framebuf.FrameBuffer(buf_black, w, h, framebuf.MONO_VLSB)
fb_red = framebuf.FrameBuffer(buf_red, w, h, framebuf.MONO_VLSB)
black_red = 0 # will be black on buf_black, red on buf_red
white = 1
d_b = DummyDisplay(buf_black, w, h, framebuf.MONO_VLSB)
d_r = DummyDisplay(buf_red, w, h, framebuf.MONO_VLSB)
d_b.fill(white)
d_r.fill(white)
wri_b = Writer(d_b, font10, False)
Writer.set_textpos(d_b, 6, 0) # verbose = False to suppress console output
wri_b.printstring(quote_list[0], True)
wri_r = Writer(d_r, font10, False)
Writer.set_textpos(d_r, 110, 0) #y position 110 is max for font10
wri_r.printstring(' -'+quote_list[1], True)
# Move frame buffer bytes to e-paper buffer to match e-paper bytes organisation.
x=0; y=0; n=1; R=0
for i in range(1, 17):
for j in range(1, 297):
R = (n-x)+((n-y)*15)
buf_epaper_black[R-1] = buf_black[n-1]
buf_epaper_red[R-1] = buf_red[n-1]
n +=1
x = n+i-1
y = n-1
def update_display(display, payload):
def calculate_width(font, text):
w = 0
for c in text:
glyph, char_height, char_width = font.get_ch(c)
w += char_width
return w
try:
command = {}
if payload is None:
# An example command for testing
command = {
"heating_state": True,
"msg": "auto",
"inside_temp": 23.456,
"outside_temp": -9.876
}
else:
try:
import ujson as json
command = json.loads(payload)
except (OSError, ValueError):
import kiota.Util as Util
Util.log(update_display,
"Can't parse payload: '{}'".format(payload))
display.fill(0)
ink = 1
heating_state = command["heating_state"]
if heating_state:
ink = 0
display.fill_rect(0, 0, 128, 14, 1)
if command["msg"] is not None:
display.text(str(command["msg"]), 0, 1, ink)
if command["heating_state"]:
display.text("ON", 104, 1, ink)
else:
display.text("OFF", 104, 1, ink)
import KameronRegularNumbers25 as font
from Writer import Writer
writer = Writer(display, font)
writer.set_clip(True, True)
inside_temp = "--"
try:
inside_temp = str(int(round(float(command["inside_temp"]))))
except:
pass
writer.set_textpos(23,
int((64 - calculate_width(font, inside_temp)) / 2))
display.fill_rect(0, 15, 64, 41, 0)
writer.printstring(inside_temp)
outside_temp = "--"
try:
outside_temp = str(int(round(float(command["outside_temp"]))))
except:
pass
writer.set_textpos(
23, 64 + int((64 - calculate_width(font, outside_temp)) / 2))
display.fill_rect(64, 15, 64, 41, 0)
writer.printstring(outside_temp)
display.text("inside", 0, 56)
display.text("outside", 72, 56)
display.show()
except Exception as e:
display.text("ERROR", 0, 0)
display.show()
import sys
sys.print_exception(e)
return True
def epd_pull():
#get the quote from the quote api function. Stored as tuple
quote_list = quote_api.quote_pull()
# software SPI on ESP32 Waveshare driver board
epap_pos = Pin(18, Pin.PULL_UP)
epap_neg = Pin(19, Pin.PULL_DOWN)
sck = Pin(16)
mosi = Pin(23)
cs = Pin(5)
busy = Pin(15)
rst = Pin(21)
dc = Pin(17)
# miso is not used but must be declared. Let's take any unused gpio: 12
miso = Pin(12)
spi = SPI(baudrate=100000,
polarity=0,
phase=0,
sck=sck,
mosi=mosi,
miso=miso)
e = epap.EPD(spi, cs, dc, rst, busy)
e.init()
h = 128
w = 296 # e-paper heigth and width. It will be used in landscape mode
buf_black = bytearray(w * h // 8) # used by frame buffer (landscape)
buf_red = bytearray(w * h // 8) # used by frame buffer (landscape)
buf_epaper_black = bytearray(
w * h // 8) # used to display on e-paper after bytes have been
buf_epaper_red = bytearray(
w * h // 8) # moved from frame buffer to match e-paper (portrait)
fb_black = framebuf.FrameBuffer(buf_black, w, h, framebuf.MONO_VLSB)
fb_red = framebuf.FrameBuffer(buf_red, w, h, framebuf.MONO_VLSB)
black_red = 0 # will be black on buf_black, red on buf_red
white = 1
d_b = DummyDisplay(buf_black, w, h, framebuf.MONO_VLSB)
d_r = DummyDisplay(buf_red, w, h, framebuf.MONO_VLSB)
d_b.fill(white)
d_r.fill(white)
wri_b = Writer(d_b, font10, False)
Writer.set_textpos(d_b, 6, 0) # verbose = False to suppress console output
wri_b.printstring(quote_list[0], True)
wri_r = Writer(d_r, font10, False)
#import volt
import hour_tim
slep_tim = hour_tim.time_corr()
#v_reading="%.2f" % volt.voltage()
h = '{:02d}:{:02d}.{:02d}'.format(RTC().datetime()[4],
RTC().datetime()[5],
RTC().datetime()[6])
Writer.set_textpos(d_r, 110, 0) #y position 110 is max for font10
print(h, quote_list[1])
wri_r.printstring(' -' + quote_list[1] + ' ' + h, True) #+' V='+v_reading
# Move frame buffer bytes to e-paper buffer to match e-paper bytes organisation.
x = 0
y = 0
n = 1
R = 0
for i in range(1, 17):
for j in range(1, 297):
R = (n - x) + ((n - y) * 15)
buf_epaper_black[R - 1] = buf_black[n - 1]
buf_epaper_red[R - 1] = buf_red[n - 1]
n += 1
x = n + i - 1
y = n - 1
buf_red = []
buf_black = []
print('Sending to display')
e.display_frame(buf_epaper_black, buf_epaper_red)
print('Done!.......')
gc.collect()
e.sleep() # recommended by manufacturer to avoid damage to display
print('E-paper sleeping!...')
machine.deepsleep(slep_tim)
print('END')
