initial commit, display with commands working
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aeroreyna
247
Pico_ePaper_Code/python/Pico_ePaper-2.66-B.py
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247
Pico_ePaper_Code/python/Pico_ePaper-2.66-B.py
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# *****************************************************************************
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# * | File : Pico_ePaper-2.66-B.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 : 2021-05-14
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# # | Info : python demo
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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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from machine import Pin, SPI
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import framebuf
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import utime
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# Display resolution
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EPD_WIDTH = 152
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EPD_HEIGHT = 296
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RST_PIN = 12
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DC_PIN = 8
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CS_PIN = 9
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BUSY_PIN = 13
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WF_PARTIAL_2IN66 =[
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0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x40,0x40,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x0A,0x00,0x00,0x00,0x00,0x00,0x02,0x01,0x00,0x00,
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0x00,0x00,0x00,0x00,0x01,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
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0x00,0x00,0x00,0x00,0x22,0x22,0x22,0x22,0x22,0x22,
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0x00,0x00,0x00,0x22,0x17,0x41,0xB0,0x32,0x36,
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]
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class EPD_2in9_B:
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def __init__(self):
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self.reset_pin = Pin(RST_PIN, Pin.OUT)
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self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
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self.cs_pin = Pin(CS_PIN, Pin.OUT)
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self.width = EPD_WIDTH
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self.height = EPD_HEIGHT
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self.lut = WF_PARTIAL_2IN66
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self.spi = SPI(1)
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self.spi.init(baudrate=4000_000)
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self.dc_pin = Pin(DC_PIN, Pin.OUT)
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self.buffer_black = bytearray(self.height * self.width // 8)
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self.buffer_red = bytearray(self.height * self.width // 8)
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self.imageblack = framebuf.FrameBuffer(self.buffer_black, self.width, self.height, framebuf.MONO_HLSB)
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self.imagered = framebuf.FrameBuffer(self.buffer_red, self.width, self.height, framebuf.MONO_HLSB)
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self.init()
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def digital_write(self, pin, value):
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pin.value(value)
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def digital_read(self, pin):
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return pin.value()
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def delay_ms(self, delaytime):
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utime.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.spi.write(bytearray(data))
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def module_exit(self):
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self.digital_write(self.reset_pin, 0)
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# Hardware reset
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def reset(self):
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(50)
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self.digital_write(self.reset_pin, 0)
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self.delay_ms(2)
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(50)
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def send_command(self, command):
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self.digital_write(self.dc_pin, 0)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([command])
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self.digital_write(self.cs_pin, 1)
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def send_data(self, data):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([data])
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self.digital_write(self.cs_pin, 1)
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def send_data1(self, buf):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi.write(bytearray(buf))
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self.digital_write(self.cs_pin, 1)
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def SetWindow(self, x_start, y_start, x_end, y_end):
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self.send_command(0x44)
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self.send_data((x_start>>3) & 0x1f)
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self.send_data((x_end>>3) & 0x1f)
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self.send_command(0x45)
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self.send_data(y_start&0xff)
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self.send_data((y_start&0x100)>>8)
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self.send_data((y_end&0xff))
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self.send_data((y_end&0x100)>>8)
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def SetCursor(self, x_start, y_start):
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self.send_command(0x4E)
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self.send_data(x_start & 0x1f)
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self.send_command(0x4f)
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self.send_data(y_start&0xff)
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self.send_data((y_start&0x100)>>8)
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def ReadBusy(self):
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print('e-Paper busy')
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utime.sleep_ms(50)
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while(self.busy_pin.value() == 1): # 0: idle, 1: busy
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utime.sleep_ms(10)
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print('e-Paper busy release')
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utime.sleep_ms(50)
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def TurnOnDisplay(self):
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self.send_command(0x20)
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self.ReadBusy()
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def init(self):
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print('init')
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self.reset()
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self.ReadBusy()
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self.send_command(0x12)
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self.ReadBusy()#waiting for the electronic paper IC to release the idle signal
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self.send_command(0x11)
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self.send_data(0x03)
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self.SetWindow(0, 0, self.width-1, self.height-1)
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self.send_command(0x21) #resolution setting
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self.send_data (0x00)
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self.send_data (0x80)
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self.SetCursor(0,0)
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self.ReadBusy()
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def display(self):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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self.send_command(0x24)
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for j in range(0, high):
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for i in range(0, wide):
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self.send_data(~self.buffer_black[i + j * wide])
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self.send_command(0x26)
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for j in range(0, high):
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for i in range(0, wide):
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self.send_data(~self.buffer_red[i + j * wide])
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self.TurnOnDisplay()
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def Clear(self, colorblack, colorred):
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high = self.height
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if( self.width % 8 == 0) :
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wide = self.width // 8
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else :
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wide = self.width // 8 + 1
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self.send_command(0x24)
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self.send_data1([colorblack] * high * wide)
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self.send_command(0x26)
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self.send_data1([~colorred] * high * wide)
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self.TurnOnDisplay()
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def sleep(self):
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self.send_command(0X10) # deep sleep
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self.send_data(0x01)
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if __name__=='__main__':
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epd = EPD_2in9_B()
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epd.Clear(0xff, 0xff)
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epd.imageblack.fill(0xff)
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epd.imagered.fill(0xff)
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epd.imageblack.text("Waveshare", 0, 10, 0x00)
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epd.imagered.text("ePaper-2.66-B", 0, 25, 0x00)
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epd.imageblack.text("RPi Pico", 0, 40, 0x00)
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epd.imagered.text("Hello World", 0, 55, 0x00)
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epd.display()
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epd.delay_ms(2000)
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epd.imagered.vline(10, 90, 40, 0x00)
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epd.imagered.vline(90, 90, 40, 0x00)
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epd.imageblack.hline(10, 90, 80, 0x00)
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epd.imageblack.hline(10, 130, 80, 0x00)
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epd.imagered.line(10, 90, 90, 130, 0x00)
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epd.imageblack.line(90, 90, 10, 130, 0x00)
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epd.display()
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epd.delay_ms(2000)
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epd.imageblack.rect(10, 150, 40, 40, 0x00)
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epd.imagered.fill_rect(60, 150, 40, 40, 0x00)
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epd.display()
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epd.delay_ms(2000)
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epd.Clear(0xff, 0xff)
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epd.delay_ms(2000)
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print("sleep")
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epd.sleep()
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