349 lines
11 KiB
Python
349 lines
11 KiB
Python
# *****************************************************************************
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# * | File : epd1in54.py
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# * | Author : Waveshare team
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# * | Function : Electronic paper driver
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# * | Info :
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# *----------------
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# * | This version: V1.0
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# * | Date : 2019-06-20
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# # | Info : python demo
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# -----------------------------------------------------------------------------
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# ******************************************************************************/
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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import logging
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from . import epdconfig
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# Display resolution
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EPD_WIDTH = 80
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EPD_HEIGHT = 128
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logger = logging.getLogger(__name__)
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class EPD:
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def __init__(self):
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self.reset_pin = epdconfig.RST_PIN
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self.dc_pin = epdconfig.DC_PIN
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self.busy_pin = epdconfig.BUSY_PIN
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self.cs_pin = epdconfig.CS_PIN
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self.width = EPD_WIDTH
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self.height = EPD_HEIGHT
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#full screen update LUT
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lut_w1 =[
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0x60, 0x5A, 0x5A, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_b1 =[
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0x90, 0x5A, 0x5A, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# partial screen update LUT
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lut_w = [
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0x60, 0x01, 0x01, 0x00, 0x00, 0x01,
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0x80, 0x1f, 0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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lut_b = [
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0x90, 0x01, 0x01, 0x00, 0x00, 0x01,
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0x40, 0x1f, 0x00, 0x00, 0x00, 0x01,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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]
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# Hardware reset
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def reset(self):
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epdconfig.digital_write(self.reset_pin, 1)
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epdconfig.delay_ms(200)
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epdconfig.digital_write(self.reset_pin, 0) # module reset
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epdconfig.delay_ms(2)
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epdconfig.digital_write(self.reset_pin, 1)
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epdconfig.delay_ms(200)
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def send_command(self, command):
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epdconfig.digital_write(self.dc_pin, 0)
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epdconfig.digital_write(self.cs_pin, 0)
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epdconfig.spi_writebyte([command])
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epdconfig.digital_write(self.cs_pin, 1)
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def send_data(self, data):
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epdconfig.digital_write(self.dc_pin, 1)
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epdconfig.digital_write(self.cs_pin, 0)
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epdconfig.spi_writebyte([data])
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epdconfig.digital_write(self.cs_pin, 1)
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def ReadBusy(self):
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logger.debug("e-Paper busy")
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self.send_command(0x71)
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busy = epdconfig.digital_read(self.busy_pin)
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busy =not(busy & 0x01)
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while(busy):
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self.send_command(0x71)
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busy = epdconfig.digital_read(self.busy_pin)
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busy =not(busy & 0x01)
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epdconfig.delay_ms(800)
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logger.debug("e-Paper busy release")
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def TurnOnDisplay(self):
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self.send_command(0x12)
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epdconfig.delay_ms(10)
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self.ReadBusy()
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def SetFulltReg(self):
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self.send_command(0x23)
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for count in range(0, 42):
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self.send_data(self.lut_w1[count])
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self.send_command(0x24)
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for count in range(0, 42):
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self.send_data(self.lut_b1[count])
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def SetPartReg(self):
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self.send_command(0x23)
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for count in range(0, 42):
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self.send_data(self.lut_w[count])
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self.send_command(0x24)
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for count in range(0, 42):
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self.send_data(self.lut_b[count])
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def Init(self):
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if (epdconfig.module_init() != 0):
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return -1
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# EPD hardware init start
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self.reset()
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self.send_command(0xD2)
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self.send_data(0x3F)
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self.send_command(0x00)
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self.send_data (0x6F) #from outside
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self.send_command(0x01) #power setting
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self.send_data (0x03)
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self.send_data (0x00)
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self.send_data (0x2b)
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self.send_data (0x2b)
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self.send_command(0x06) #Configuring the charge pump
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self.send_data(0x3f)
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self.send_command(0x2A) #Setting XON and the options of LUT
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_command(0x30) #Set the clock frequency
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self.send_data(0x17) #50Hz
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self.send_command(0x50) #Set VCOM and data output interval
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self.send_data(0x57)
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self.send_command(0x60) #Set The non-overlapping period of Gate and Source.
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self.send_data(0x22)
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self.send_command(0x61) #resolution setting
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self.send_data (0x50) #source 128
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self.send_data (0x80)
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self.send_command(0x82) #sets VCOM_DC value
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self.send_data(0x12) #-1v
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self.send_command(0xe3)#Set POWER SAVING
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self.send_data(0x33)
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self.SetFulltReg()
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self.send_command(0x04) #power on
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self.ReadBusy()
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# EPD hardware init end
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return 0
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def Partial_Init(self):
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self.reset()
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self.send_command(0xD2)
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self.send_data(0x3F)
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self.send_command(0x00)
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self.send_data (0x6F) #from outside
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self.send_command(0x01) #power setting
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self.send_data (0x03)
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self.send_data (0x00)
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self.send_data (0x2b)
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self.send_data (0x2b)
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self.send_command(0x06) #Configuring the charge pump
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self.send_data(0x3f)
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self.send_command(0x2A) #Setting XON and the options of LUT
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self.send_data(0x00)
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self.send_data(0x00)
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self.send_command(0x30) #Set the clock frequency
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self.send_data(0x17)
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self.send_command(0x50) #Set VCOM and data output interval
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self.send_data(0xf2)
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self.send_command(0x60) #Set The non-overlapping period of Gate and Source.
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self.send_data(0x22)
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self.send_command(0x82) #Set VCOM_DC value
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self.send_data(0x12)#-1v
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self.send_command(0xe3)#Set POWER SAVING
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self.send_data(0x33)
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self.SetPartReg()
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self.send_command(0x04)#Set POWER SAVING
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self.ReadBusy()
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# EPD hardware init end
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return 0
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def getbuffer(self, image):
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buf = [0xFF] * (int(self.width / 8) * self.height)
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image_monocolor = image.convert('1')
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imwidth, imheight = image_monocolor.size
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pixels = image_monocolor.load()
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if(imwidth == self.width and imheight == self.height):
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logger.debug("Horizontal")
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for y in range(imheight):
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for x in range(imwidth):
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# Set the bits for the column of pixels at the current position.
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if pixels[x, y] == 0:
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buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8))
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elif(imwidth == self.height and imheight == self.width):
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logger.debug("Vertical")
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for y in range(imheight):
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for x in range(imwidth):
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newx = y
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newy = self.height - x - 1
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if pixels[x, y] == 0:
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buf[int((newx + newy*self.width) / 8)] &= ~(0x80 >> (y % 8))
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return buf
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def Display(self, image):
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if (image == None):
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return
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# Width = (self.width % 8 == 0)? (self.width / 8 ): (self.width / 8 + 1)
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if(self.width % 8 == 0):
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Width = self.width / 8
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else:
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Width = self.width / 8 + 1
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self.send_command(0x10)
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for j in range(0, self.height):
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for i in range(0, int(Width)):
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self.send_data(0xff)
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self.send_command(0x13)
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for j in range(0, self.height):
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for i in range(0, int(Width)):
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self.send_data(image[i + j * int(Width)])
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self.TurnOnDisplay()
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def Clear(self):
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# Width = (self.width % 8 == 0)? (self.width / 8 ): (self.width / 8 + 1)
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if(self.width % 8 == 0):
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Width = self.width / 8
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else:
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Width = self.width / 8 + 1
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Height = self.height
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self.send_command(0x10)
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for j in range(0, Height):
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for i in range(0, int(Width)):
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self.send_data(0x00)
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self.send_command(0x13)
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for j in range(0, Height):
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for i in range(0, int(Width)):
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self.send_data(0xff)
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self.TurnOnDisplay()
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def DisplayPartial(self, old_Image, Image):
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# Set partial Windows */
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self.send_command(0x91) #This command makes the display enter partial mode
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self.send_command(0x90) #resolution setting
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self.send_data(0) #x-start
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self.send_data(79) #x-end
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self.send_data(0)
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self.send_data(127) #y-end
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self.send_data(0x00)
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# Width = (self.width % 8 == 0)? (self.width / 8 ): (self.width / 8 + 1)
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if(self.width % 8 == 0):
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Width = self.width / 8
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else:
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Width = self.width / 8 + 1
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Height = self.height
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# send data
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self.send_command(0x10)
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for j in range(0, Height):
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for i in range(0, int(Width)):
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self.send_data(old_Image[i + j * int(Width)])
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self.send_command(0x13)
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for j in range(0, Height):
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for i in range(0, int(Width)):
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self.send_data(Image[i + j * int(Width)])
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# Set partial refresh
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self.TurnOnDisplay()
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def Sleep(self):
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self.send_command(0x50)
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self.send_data(0xf7)
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self.send_command(0x02)
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self.ReadBusy()
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self.send_command(0x07)
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self.send_data(0xA5)
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epdconfig.delay_ms(200)
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epdconfig.delay_ms(2000)
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epdconfig.module_exit()
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### END OF FILE ###
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