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drivers_colordraw.py
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# Copyright (c) 2018 Jouko Strömmer
# Copyright (c) 2017 Waveshare
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
from PIL import Image, ImageDraw
from papertty.drivers.drivers_color import WaveshareColor
class WaveshareColorDraw(WaveshareColor):
"""Class for displays that have (mostly shared) special implementations of some drawing methods. This includes:
- 1.54" B
- 1.54" C
- 2.13" B
- 2.7" B
- 2.9" B
"""
ACTIVE_PROGRAM = 0xA1
DATA_START_TRANSMISSION_2 = 0x13
PROGRAM_MODE = 0xA0
READ_OTP_DATA = 0xA2
VCOM_VALUE = 0x81
def __init__(self, **kwargs):
super().__init__(**kwargs)
self.colors = 3
self.rotate = self.ROTATE_0
# the rotation aware algorithms refer to and swap the screen dimensions, so set them here
self.EPD_WIDTH = kwargs['width']
self.EPD_HEIGHT = kwargs['height']
# EPD1in54b and EPD1in54c use 0x17
# EPD2in13b and EPD2in9b use 0x37
# EPD2in7b has a simpler sleep
def sleep(self, sleepbyte=0x17):
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(sleepbyte)
self.send_command(self.VCM_DC_SETTING) # to solve Vcom drop
self.send_data(0x00)
self.send_command(self.POWER_SETTING) # power setting
self.send_data(0x02) # gate switch to external
self.send_data(0x00)
self.send_data(0x00)
self.send_data(0x00)
self.wait_until_idle()
self.send_command(self.POWER_OFF) # power off
def set_rotate(self, rotate):
if rotate == self.ROTATE_0:
self.rotate = self.ROTATE_0
self.width = self.EPD_WIDTH
self.height = self.EPD_HEIGHT
elif rotate == self.ROTATE_90:
self.rotate = self.ROTATE_90
self.width = self.EPD_HEIGHT
self.height = self.EPD_WIDTH
elif rotate == self.ROTATE_180:
self.rotate = self.ROTATE_180
self.width = self.EPD_WIDTH
self.height = self.EPD_HEIGHT
elif rotate == self.ROTATE_270:
self.rotate = self.ROTATE_270
self.width = self.EPD_HEIGHT
self.height = self.EPD_WIDTH
# this variant is for EPD1in54c, EPD2in13b and EPD2in9b - EPD1in54b and EPD2in7b override it
def display_frame(self, frame_buffer_black, *args):
frame_buffer_red = args[0] if args else None
if frame_buffer_black:
self.send_command(self.DATA_START_TRANSMISSION_1)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(frame_buffer_black[i])
self.delay_ms(2)
if frame_buffer_red:
self.send_command(self.DATA_START_TRANSMISSION_2)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(frame_buffer_red[i])
self.delay_ms(2)
self.send_command(self.DISPLAY_REFRESH)
self.wait_until_idle()
# for EPD154* - override elsewhere
def set_lut_bw(self):
self.send_command(0x20) # vcom
for count in range(0, 15):
self.send_data(self.lut_vcom0[count])
self.send_command(0x21) # ww --
for count in range(0, 15):
self.send_data(self.lut_w[count])
self.send_command(0x22) # bw r
for count in range(0, 15):
self.send_data(self.lut_b[count])
self.send_command(0x23) # wb w
for count in range(0, 15):
self.send_data(self.lut_g1[count])
self.send_command(0x24) # bb b
for count in range(0, 15):
self.send_data(self.lut_g2[count])
# for EPD154* - override elsewhere
def set_lut_red(self):
self.send_command(0x25)
for count in range(0, 15):
self.send_data(self.lut_vcom1[count])
self.send_command(0x26)
for count in range(0, 15):
self.send_data(self.lut_red0[count])
self.send_command(0x27)
for count in range(0, 15):
self.send_data(self.lut_red1[count])
# these LUTs are for EPD154* - override in 2.7"
lut_vcom0 = [
0x0E, 0x14, 0x01, 0x0A, 0x06, 0x04, 0x0A, 0x0A,
0x0F, 0x03, 0x03, 0x0C, 0x06, 0x0A, 0x00
]
lut_w = [
0x0E, 0x14, 0x01, 0x0A, 0x46, 0x04, 0x8A, 0x4A,
0x0F, 0x83, 0x43, 0x0C, 0x86, 0x0A, 0x04
]
lut_b = [
0x0E, 0x14, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A,
0x0F, 0x83, 0x43, 0x0C, 0x06, 0x4A, 0x04
]
lut_g1 = [
0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A,
0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04
]
lut_g2 = [
0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A,
0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04
]
lut_vcom1 = [
0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]
lut_red0 = [
0x83, 0x5D, 0x01, 0x81, 0x48, 0x23, 0x77, 0x77,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]
lut_red1 = [
0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
]
def set_pixel(self, frame_buffer, x, y, colored):
if x < 0 or x >= self.width or y < 0 or y >= self.height:
return
if self.rotate == self.ROTATE_0:
self.set_absolute_pixel(frame_buffer, x, y, colored)
elif self.rotate == self.ROTATE_90:
point_temp = x
x = self.EPD_WIDTH - y
y = point_temp
self.set_absolute_pixel(frame_buffer, x, y, colored)
elif self.rotate == self.ROTATE_180:
x = self.EPD_WIDTH - x
y = self.EPD_HEIGHT - y
self.set_absolute_pixel(frame_buffer, x, y, colored)
elif self.rotate == self.ROTATE_270:
point_temp = x
x = y
y = self.EPD_HEIGHT - point_temp
self.set_absolute_pixel(frame_buffer, x, y, colored)
# overridden in EPD2in7b
def set_absolute_pixel(self, frame_buffer, x, y, colored, reverse=False):
# To avoid display orientation effects
# use EPD_WIDTH instead of self.width
# use EPD_HEIGHT instead of self.height
if x < 0 or x >= self.EPD_WIDTH or y < 0 or y >= self.EPD_HEIGHT:
return
if not colored if reverse else colored:
frame_buffer[(x + y * self.EPD_WIDTH) / 8] &= ~(0x80 >> (x % 8))
else:
frame_buffer[(x + y * self.EPD_WIDTH) / 8] |= 0x80 >> (x % 8)
def draw_circle(self, frame_buffer, x, y, radius, colored):
# Bresenham algorithm
x_pos = -radius
y_pos = 0
err = 2 - 2 * radius
if x >= self.width or y >= self.height:
return
while True:
self.set_pixel(frame_buffer, x - x_pos, y + y_pos, colored)
self.set_pixel(frame_buffer, x + x_pos, y + y_pos, colored)
self.set_pixel(frame_buffer, x + x_pos, y - y_pos, colored)
self.set_pixel(frame_buffer, x - x_pos, y - y_pos, colored)
e2 = err
if e2 <= y_pos:
y_pos += 1
err += y_pos * 2 + 1
if -x_pos == y_pos and e2 <= x_pos:
e2 = 0
if e2 > x_pos:
x_pos += 1
err += x_pos * 2 + 1
if x_pos > 0:
break
# this only appears in EPD1in54b and EPD1in54c source
def display_string_at(self, frame_buffer, x, y, text, font, colored):
image = Image.new('1', (self.width, self.height))
draw = ImageDraw.Draw(image)
draw.text((x, y), text, font=font, fill=255)
# Set buffer to value of Python Imaging Library image.
# Image must be in mode 1.
pixels = image.load()
for y in range(self.height):
for x in range(self.width):
# Set the bits for the column of pixels at the current position.
if pixels[x, y] != 0:
self.set_pixel(frame_buffer, x, y, colored)
# this, on the other hand, appears in the EPD2in7b source - same method, different name
def draw_string_at(self, frame_buffer, x, y, text, font, colored):
self.display_string_at(frame_buffer, x, y, text, font, colored)
def draw_line(self, frame_buffer, x0, y0, x1, y1, colored):
# Bresenham algorithm
dx = abs(x1 - x0)
sx = 1 if x0 < x1 else -1
dy = -abs(y1 - y0)
sy = 1 if y0 < y1 else -1
err = dx + dy
while (x0 != x1) and (y0 != y1):
self.set_pixel(frame_buffer, x0, y0, colored)
if 2 * err >= dy:
err += dy
x0 += sx
if 2 * err <= dx:
err += dx
y0 += sy
def draw_horizontal_line(self, frame_buffer, x, y, width, colored):
for i in range(x, x + width):
self.set_pixel(frame_buffer, i, y, colored)
def draw_vertical_line(self, frame_buffer, x, y, height, colored):
for i in range(y, y + height):
self.set_pixel(frame_buffer, x, i, colored)
def draw_rectangle(self, frame_buffer, x0, y0, x1, y1, colored):
min_x = x0 if x1 > x0 else x1
max_x = x1 if x1 > x0 else x0
min_y = y0 if y1 > y0 else y1
max_y = y1 if y1 > y0 else y0
self.draw_horizontal_line(frame_buffer, min_x, min_y, max_x - min_x + 1, colored)
self.draw_horizontal_line(frame_buffer, min_x, max_y, max_x - min_x + 1, colored)
self.draw_vertical_line(frame_buffer, min_x, min_y, max_y - min_y + 1, colored)
self.draw_vertical_line(frame_buffer, max_x, min_y, max_y - min_y + 1, colored)
def draw_filled_rectangle(self, frame_buffer, x0, y0, x1, y1, colored):
min_x = x0 if x1 > x0 else x1
max_x = x1 if x1 > x0 else x0
min_y = y0 if y1 > y0 else y1
max_y = y1 if y1 > y0 else y0
for i in range(min_x, max_x + 1):
self.draw_vertical_line(frame_buffer, i, min_y, max_y - min_y + 1, colored)
def draw_filled_circle(self, frame_buffer, x, y, radius, colored):
# Bresenham algorithm
x_pos = -radius
y_pos = 0
err = 2 - 2 * radius
if x >= self.width or y >= self.height:
return
while True:
self.set_pixel(frame_buffer, x - x_pos, y + y_pos, colored)
self.set_pixel(frame_buffer, x + x_pos, y + y_pos, colored)
self.set_pixel(frame_buffer, x + x_pos, y - y_pos, colored)
self.set_pixel(frame_buffer, x - x_pos, y - y_pos, colored)
self.draw_horizontal_line(frame_buffer, x + x_pos, y + y_pos, 2 * (-x_pos) + 1, colored)
self.draw_horizontal_line(frame_buffer, x + x_pos, y - y_pos, 2 * (-x_pos) + 1, colored)
e2 = err
if e2 <= y_pos:
y_pos += 1
err += y_pos * 2 + 1
if -x_pos == y_pos and e2 <= x_pos:
e2 = 0
if e2 > x_pos:
x_pos += 1
err += x_pos * 2 + 1
if x_pos > 0:
break
class EPD1in54b(WaveshareColorDraw):
"""Waveshare 1.54" B - black / white / red"""
SOURCE_AND_GATE_START_SETTING = 0x62
TCON_RESOLUTION = 0x61
TEMPERATURE_SENSOR_CALIBRATION = 0x41
def __init__(self):
super().__init__(name='1.54" B', width=200, height=200)
def init(self, **kwargs):
if self.epd_init() != 0:
return -1
self.reset()
self.send_command(self.POWER_SETTING)
self.send_data(0x07)
self.send_data(0x00)
self.send_data(0x08)
self.send_data(0x00)
self.send_command(self.BOOSTER_SOFT_START)
self.send_data(0x07)
self.send_data(0x07)
self.send_data(0x07)
self.send_command(self.POWER_ON)
self.wait_until_idle()
self.send_command(self.PANEL_SETTING)
self.send_data(0xCF)
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(0x17)
self.send_command(self.PLL_CONTROL)
self.send_data(0x39)
self.send_command(self.TCON_RESOLUTION)
self.send_data(0xC8)
self.send_data(0x00)
self.send_data(0xC8)
self.send_command(self.VCM_DC_SETTING)
self.send_data(0x0E)
self.set_lut_bw()
self.set_lut_red()
return 0
def get_frame_buffer(self, image, reverse=True):
super().get_frame_buffer(image, reverse=reverse)
def display_frame(self, frame_buffer_black, *args):
frame_buffer_red = args[0] if args else None
if frame_buffer_black:
self.send_command(self.DATA_START_TRANSMISSION_1)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
temp = 0x00
for bit in range(0, 4):
if frame_buffer_black[i] & (0x80 >> bit) != 0:
temp |= 0xC0 >> (bit * 2)
self.send_data(temp)
temp = 0x00
for bit in range(4, 8):
if frame_buffer_black[i] & (0x80 >> bit) != 0:
temp |= 0xC0 >> ((bit - 4) * 2)
self.send_data(temp)
self.delay_ms(2)
if frame_buffer_red:
self.send_command(self.DATA_START_TRANSMISSION_2)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(frame_buffer_red[i])
self.delay_ms(2)
self.send_command(self.DISPLAY_REFRESH)
self.wait_until_idle()
class EPD1in54c(WaveshareColorDraw):
"""Waveshare 1.54" C - black / white / yellow"""
SOURCE_AND_GATE_START_SETTING = 0x62
TCON_RESOLUTION = 0x61
TEMPERATURE_SENSOR_CALIBRATION = 0x41
def __init__(self):
super().__init__(name='1.54" C', width=152, height=152)
def init(self, **kwargs):
if self.epd_init() != 0:
return -1
self.reset()
self.send_command(self.POWER_SETTING)
self.send_data(0x07)
self.send_data(0x00)
self.send_data(0x08)
self.send_data(0x00)
self.send_command(self.BOOSTER_SOFT_START)
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x17)
self.send_command(self.POWER_ON)
self.wait_until_idle()
self.send_command(self.PANEL_SETTING)
self.send_data(0x0F)
self.send_data(0x0D)
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(0x77)
self.send_command(self.PLL_CONTROL)
self.send_data(0x39)
self.send_command(self.TCON_RESOLUTION)
self.send_data(0x98)
self.send_data(0x00)
self.send_data(0x98)
self.send_command(self.VCM_DC_SETTING)
self.send_data(0x0E)
self.set_lut_bw()
self.set_lut_red()
return 0
def get_frame_buffer(self, image, reverse=True):
super().get_frame_buffer(image, reverse=reverse)
class EPD2in13b(WaveshareColorDraw):
"""Waveshare 2.13" B - black / white / red"""
B2B_LUT = 0x24
B2W_LUT = 0x22
PARTIAL_IN = 0x91
PARTIAL_OUT = 0x92
PARTIAL_WINDOW = 0x90
POWER_SAVING = 0xE3
RESOLUTION_SETTING = 0x61
TEMPERATURE_SENSOR_CALIBRATION = 0x40
TEMPERATURE_SENSOR_SELECTION = 0x41
VCOM_LUT = 0x20
W2B_LUT = 0x23
W2W_LUT = 0x21
def __init__(self):
super().__init__(name='2.13" B', width=104, height=212)
def init(self, **kwargs):
if self.epd_init() != 0:
return -1
self.reset()
self.send_command(self.BOOSTER_SOFT_START)
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x17)
self.send_command(self.POWER_ON)
self.wait_until_idle()
self.send_command(self.PANEL_SETTING)
self.send_data(0x8F)
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(0x37)
self.send_command(self.RESOLUTION_SETTING)
self.send_data(0x68)
self.send_data(0x00)
self.send_data(0xD4)
def get_frame_buffer(self, image, reverse=True):
super().get_frame_buffer(image, reverse=reverse)
def sleep(self, sleepbyte=0x37):
super().sleep(sleepbyte=sleepbyte)
class EPD2in7b(WaveshareColorDraw):
"""Waveshare 2.7" B - black / white / red"""
LUT_BLACK_TO_BLACK = 0x24
LUT_BLACK_TO_WHITE = 0x22
LUT_WHITE_TO_BLACK = 0x23
LUT_WHITE_TO_WHITE = 0x21
PARTIAL_DATA_START_TRANSMISSION_1 = 0x14
PARTIAL_DATA_START_TRANSMISSION_2 = 0x15
PARTIAL_DISPLAY_REFRESH = 0x16
SOURCE_AND_GATE_START_SETTING = 0x62
TCON_RESOLUTION = 0x61
TEMPERATURE_SENSOR_CALIBRATION = 0x41
lut_vcom_dc = [
0x00, 0x00,
0x00, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
]
# R21H
lut_ww = [
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
]
# R22H r
lut_bw = [
0xA0, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x00, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x90, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0xB0, 0x04, 0x10, 0x00, 0x00, 0x05,
0xB0, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0xC0, 0x23, 0x00, 0x00, 0x00, 0x01
]
# R23H w
lut_bb = [
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x40, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x80, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
]
# R24H b
lut_wb = [
0x90, 0x1A, 0x1A, 0x00, 0x00, 0x01,
0x20, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x84, 0x0E, 0x01, 0x0E, 0x01, 0x10,
0x10, 0x0A, 0x0A, 0x00, 0x00, 0x08,
0x00, 0x04, 0x10, 0x00, 0x00, 0x05,
0x00, 0x03, 0x0E, 0x00, 0x00, 0x0A,
0x00, 0x23, 0x00, 0x00, 0x00, 0x01
]
def __init__(self):
super().__init__(name='2.7" B', width=176, height=264)
def init(self, **kwargs):
if self.epd_init() != 0:
return -1
self.reset()
self.send_command(self.POWER_ON)
self.wait_until_idle()
self.send_command(self.PANEL_SETTING)
self.send_data(0xaf) # KW-BF KWR-AF BWROTP 0f
self.send_command(self.PLL_CONTROL)
self.send_data(0x3a) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ
self.send_command(self.POWER_SETTING)
self.send_data(0x03) # VDS_EN, VDG_EN
self.send_data(0x00) # VCOM_HV, VGHL_LV[1], VGHL_LV[0]
self.send_data(0x2b) # VDH
self.send_data(0x2b) # VDL
self.send_data(0x09) # VDHR
self.send_command(self.BOOSTER_SOFT_START)
self.send_data(0x07)
self.send_data(0x07)
self.send_data(0x17)
# Power optimization
self.send_command(0xF8)
self.send_data(0x60)
self.send_data(0xA5)
# Power optimization
self.send_command(0xF8)
self.send_data(0x89)
self.send_data(0xA5)
# Power optimization
self.send_command(0xF8)
self.send_data(0x90)
self.send_data(0x00)
# Power optimization
self.send_command(0xF8)
self.send_data(0x93)
self.send_data(0x2A)
# Power optimization
self.send_command(0xF8)
self.send_data(0x73)
self.send_data(0x41)
self.send_command(self.VCM_DC_SETTING)
self.send_data(0x12)
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(0x87) # define by OTP
self.set_lut()
self.send_command(self.PARTIAL_DISPLAY_REFRESH)
self.send_data(0x00)
return 0
def set_lut(self):
self.send_command(self.LUT_FOR_VCOM) # vcom
for count in range(0, 44):
self.send_data(self.lut_vcom_dc[count])
self.send_command(self.LUT_WHITE_TO_WHITE) # ww --
for count in range(0, 42):
self.send_data(self.lut_ww[count])
self.send_command(self.LUT_BLACK_TO_WHITE) # bw r
for count in range(0, 42):
self.send_data(self.lut_bw[count])
self.send_command(self.LUT_WHITE_TO_BLACK) # wb w
for count in range(0, 42):
self.send_data(self.lut_bb[count])
self.send_command(self.LUT_BLACK_TO_BLACK) # bb b
for count in range(0, 42):
self.send_data(self.lut_wb[count])
def get_frame_buffer(self, image, reverse=True):
super().get_frame_buffer(image, reverse=reverse)
def display_frame(self, frame_buffer_black, *args):
frame_buffer_red = args[0] if args else None
self.send_command(self.TCON_RESOLUTION)
self.send_data(self.EPD_WIDTH >> 8)
self.send_data(self.EPD_WIDTH & 0xff) # 176
self.send_data(self.EPD_HEIGHT >> 8)
self.send_data(self.EPD_HEIGHT & 0xff) # 264
if frame_buffer_black:
self.send_command(self.DATA_START_TRANSMISSION_1)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(frame_buffer_black[i])
self.delay_ms(2)
if frame_buffer_red:
self.send_command(self.DATA_START_TRANSMISSION_2)
self.delay_ms(2)
for i in range(0, int(self.width * self.height / 8)):
self.send_data(frame_buffer_red[i])
self.delay_ms(2)
self.send_command(self.DISPLAY_REFRESH)
self.wait_until_idle()
def set_absolute_pixel(self, frame_buffer, x, y, colored, reverse=True):
super().set_absolute_pixel(frame_buffer, x, y, colored, reverse=reverse)
# After this command is transmitted, the chip would enter the deep-sleep
# mode to save power. The deep sleep mode would return to standby by
# hardware reset. The only one parameter is a check code, the command would
# be executed if check code = 0xA5.
# Use EPD::Reset() to awaken and use EPD::Init() to initialize.
def sleep(self, sleepbyte=None):
self.send_command(self.DEEP_SLEEP)
self.send_data(0xa5)
class EPD2in9b(WaveshareColorDraw):
"""Waveshare 2.9" B - black / white / red"""
PARTIAL_IN = 0x91
PARTIAL_OUT = 0x92
PARTIAL_WINDOW = 0x90
POWER_SAVING = 0xE3
TCON_RESOLUTION = 0x61
TEMPERATURE_SENSOR_CALIBRATION = 0x41
def __init__(self):
super().__init__(name='2.9" B', width=128, height=296)
def init(self, **kwargs):
if self.epd_init() != 0:
return -1
self.reset()
self.send_command(self.BOOSTER_SOFT_START)
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x17)
self.send_command(self.POWER_ON)
self.wait_until_idle()
self.send_command(self.PANEL_SETTING)
self.send_data(0x8F)
self.send_command(self.VCOM_AND_DATA_INTERVAL_SETTING)
self.send_data(0x77)
self.send_command(self.TCON_RESOLUTION)
self.send_data(0x80)
self.send_data(0x01)
self.send_data(0x28)
self.send_command(self.VCM_DC_SETTING)
self.send_data(0x0A)
def get_frame_buffer(self, image, reverse=True):
super().get_frame_buffer(image, reverse=reverse)
def sleep(self, sleepbyte=0x37):
super().sleep(sleepbyte=sleepbyte)