the public repo for the e-paper bulletin board. It's a bulletin board that syncs over scuttlebutt :)
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 

279 lines
11 KiB

# /*****************************************************************************
# * | File : EPD_1in54.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V3.0
# * | Date : 2018-11-06
# * | Info : python2 demo
# * 1.Remove:
# digital_write(self, pin, value)
# digital_read(self, pin)
# delay_ms(self, delaytime)
# set_lut(self, lut)
# self.lut = self.lut_full_update
# * 2.Change:
# display_frame -> TurnOnDisplay
# set_memory_area -> SetWindow
# set_memory_pointer -> SetCursor
# get_frame_buffer -> getbuffer
# set_frame_memory -> display
# * 3.How to use
# epd = epd2in7.EPD()
# epd.init(epd.lut_full_update)
# image = Image.new('1', (epd1in54.EPD_WIDTH, epd1in54.EPD_HEIGHT), 255)
# ...
# drawing ......
# ...
# epd.display(getbuffer(image))
# ******************************************************************************/
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documnetation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
import epdconfig
from PIL import Image
import RPi.GPIO as GPIO
# Display resolution
EPD_WIDTH = 400
EPD_HEIGHT = 300
# GDEW042T2 commands
PANEL_SETTING = 0x00
POWER_SETTING = 0x01
POWER_OFF = 0x02
POWER_OFF_SEQUENCE_SETTING = 0x03
POWER_ON = 0x04
POWER_ON_MEASURE = 0x05
BOOSTER_SOFT_START = 0x06
DEEP_SLEEP = 0x07
DATA_START_TRANSMISSION_1 = 0x10
DATA_STOP = 0x11
DISPLAY_REFRESH = 0x12
DATA_START_TRANSMISSION_2 = 0x13
LUT_FOR_VCOM = 0x20
LUT_WHITE_TO_WHITE = 0x21
LUT_BLACK_TO_WHITE = 0x22
LUT_WHITE_TO_BLACK = 0x23
LUT_BLACK_TO_BLACK = 0x24
PLL_CONTROL = 0x30
TEMPERATURE_SENSOR_COMMAND = 0x40
TEMPERATURE_SENSOR_SELECTION = 0x41
TEMPERATURE_SENSOR_WRITE = 0x42
TEMPERATURE_SENSOR_READ = 0x43
VCOM_AND_DATA_INTERVAL_SETTING = 0x50
LOW_POWER_DETECTION = 0x51
TCON_SETTING = 0x60
RESOLUTION_SETTING = 0x61
GSST_SETTING = 0x65
GET_STATUS = 0x71
AUTO_MEASUREMENT_VCOM = 0x80
READ_VCOM_VALUE = 0x81
VCM_DC_SETTING = 0x82
PARTIAL_WINDOW = 0x90
PARTIAL_IN = 0x91
PARTIAL_OUT = 0x92
PROGRAM_MODE = 0xA0
ACTIVE_PROGRAMMING = 0xA1
READ_OTP = 0xA2
POWER_SAVING = 0xE3
class EPD:
def __init__(self):
self.reset_pin = epdconfig.RST_PIN
self.dc_pin = epdconfig.DC_PIN
self.busy_pin = epdconfig.BUSY_PIN
self.width = EPD_WIDTH
self.height = EPD_HEIGHT
lut_vcom0 = [
0x00, 0x17, 0x00, 0x00, 0x00, 0x02,
0x00, 0x17, 0x17, 0x00, 0x00, 0x02,
0x00, 0x0A, 0x01, 0x00, 0x00, 0x01,
0x00, 0x0E, 0x0E, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]
lut_ww = [
0x40, 0x17, 0x00, 0x00, 0x00, 0x02,
0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
0x40, 0x0A, 0x01, 0x00, 0x00, 0x01,
0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]
lut_bw = [
0x40, 0x17, 0x00, 0x00, 0x00, 0x02,
0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
0x40, 0x0A, 0x01, 0x00, 0x00, 0x01,
0xA0, 0x0E, 0x0E, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]
lut_wb = [
0x80, 0x17, 0x00, 0x00, 0x00, 0x02,
0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
0x80, 0x0A, 0x01, 0x00, 0x00, 0x01,
0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]
lut_bb = [
0x80, 0x17, 0x00, 0x00, 0x00, 0x02,
0x90, 0x17, 0x17, 0x00, 0x00, 0x02,
0x80, 0x0A, 0x01, 0x00, 0x00, 0x01,
0x50, 0x0E, 0x0E, 0x00, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
]
# Hardware reset
def reset(self):
epdconfig.digital_write(self.reset_pin, GPIO.HIGH)
epdconfig.delay_ms(200)
epdconfig.digital_write(self.reset_pin, GPIO.LOW) # module reset
epdconfig.delay_ms(200)
epdconfig.digital_write(self.reset_pin, GPIO.HIGH)
epdconfig.delay_ms(200)
def send_command(self, command):
epdconfig.digital_write(self.dc_pin, GPIO.LOW)
epdconfig.spi_writebyte([command])
def send_data(self, data):
epdconfig.digital_write(self.dc_pin, GPIO.HIGH)
epdconfig.spi_writebyte([data])
def wait_until_idle(self):
while(epdconfig.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy
epdconfig.delay_ms(100)
def set_lut(self):
self.send_command(LUT_FOR_VCOM) # vcom
for count in range(0, 44):
self.send_data(self.lut_vcom0[count])
self.send_command(LUT_WHITE_TO_WHITE) # ww --
for count in range(0, 42):
self.send_data(self.lut_ww[count])
self.send_command(LUT_BLACK_TO_WHITE) # bw r
for count in range(0, 42):
self.send_data(self.lut_bw[count])
self.send_command(LUT_WHITE_TO_BLACK) # wb w
for count in range(0, 42):
self.send_data(self.lut_bb[count])
self.send_command(LUT_BLACK_TO_BLACK) # bb b
for count in range(0, 42):
self.send_data(self.lut_wb[count])
def init(self):
if (epdconfig.module_init() != 0):
return -1
# EPD hardware init start
self.reset()
self.send_command(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_command(BOOSTER_SOFT_START)
self.send_data(0x17)
self.send_data(0x17)
self.send_data(0x17)
self.send_command(POWER_ON)
self.wait_until_idle()
self.send_command(PANEL_SETTING)
self.send_data(0xbf) # KW-BF KWR-AF BWROTP 0f
self.send_data(0x0d)
self.send_command(PLL_CONTROL)
self.send_data(0x3c) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ
self.send_command(0x61); # resolution setting
self.send_data(0x01);
self.send_data(0x90); # 128
self.send_data(0x01);
self.send_data(0x2c);
self.send_command(0x82); # vcom_DC setting
self.send_data(0x28);
self.send_command(0X50); # VCOM AND DATA INTERVAL SETTING
self.send_data(0x97); # 97white border 77black border VBDF 17|D7 VBDW 97 VBDB 57 VBDF F7 VBDW 77 VBDB 37 VBDR B7
self.set_lut()
# EPD hardware init end
return 0
def getbuffer(self, image):
# print "bufsiz = ",(self.width/8) * self.height
buf = [0xFF] * ((self.width/8) * self.height)
image_monocolor = image.convert('1')
imwidth, imheight = image_monocolor.size
pixels = image_monocolor.load()
# print "imwidth = %d, imheight = %d",imwidth,imheight
if(imwidth == self.width and imheight == self.height):
print "Horizontal"
for y in range(imheight):
for x in range(imwidth):
# Set the bits for the column of pixels at the current position.
if pixels[x, y] == 0:
buf[(x + y * self.width) / 8] &= ~(0x80 >> (x % 8))
elif(imwidth == self.height and imheight == self.width):
print "Vertical"
for y in range(imheight):
for x in range(imwidth):
newx = y
newy = self.height - x - 1
if pixels[x, y] == 0:
buf[(newx + newy*self.width) / 8] &= ~(0x80 >> (y % 8))
return buf
def display(self, image):
self.send_command(DATA_START_TRANSMISSION_1)
for i in range(0, self.width * self.height / 8):
self.send_data(0xFF)
self.send_command(DATA_START_TRANSMISSION_2)
for i in range(0, self.width * self.height / 8):
self.send_data(image[i])
self.send_command(DISPLAY_REFRESH)
self.wait_until_idle()
def Clear(self, color):
self.send_command(DATA_START_TRANSMISSION_1)
for i in range(0, self.width * self.height / 8):
self.send_data(0xFF)
self.send_command(DATA_START_TRANSMISSION_2)
for i in range(0, self.width * self.height / 8):
self.send_data(0xFF)
self.send_command(DISPLAY_REFRESH)
self.wait_until_idle()
def sleep(self):
self.send_command(POWER_OFF)
self.wait_until_idle()
self.send_command(DEEP_SLEEP)
self.send_data(0XA5)
### END OF FILE ###