# ***************************************************************************** # * | File : Pico_ePaper-2.13.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-03-16 # # | Info : python demo # ----------------------------------------------------------------------------- # 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. # from machine import Pin, SPI import framebuf import utime lut_full_update= [ 0x80,0x60,0x40,0x00,0x00,0x00,0x00, #LUT0: BB: VS 0 ~7 0x10,0x60,0x20,0x00,0x00,0x00,0x00, #LUT1: BW: VS 0 ~7 0x80,0x60,0x40,0x00,0x00,0x00,0x00, #LUT2: WB: VS 0 ~7 0x10,0x60,0x20,0x00,0x00,0x00,0x00, #LUT3: WW: VS 0 ~7 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT4: VCOM: VS 0 ~7 0x03,0x03,0x00,0x00,0x02, # TP0 A~D RP0 0x09,0x09,0x00,0x00,0x02, # TP1 A~D RP1 0x03,0x03,0x00,0x00,0x02, # TP2 A~D RP2 0x00,0x00,0x00,0x00,0x00, # TP3 A~D RP3 0x00,0x00,0x00,0x00,0x00, # TP4 A~D RP4 0x00,0x00,0x00,0x00,0x00, # TP5 A~D RP5 0x00,0x00,0x00,0x00,0x00, # TP6 A~D RP6 0x15,0x41,0xA8,0x32,0x30,0x0A, ] lut_partial_update = [ #20 bytes 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT0: BB: VS 0 ~7 0x80,0x00,0x00,0x00,0x00,0x00,0x00, #LUT1: BW: VS 0 ~7 0x40,0x00,0x00,0x00,0x00,0x00,0x00, #LUT2: WB: VS 0 ~7 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT3: WW: VS 0 ~7 0x00,0x00,0x00,0x00,0x00,0x00,0x00, #LUT4: VCOM: VS 0 ~7 0x0A,0x00,0x00,0x00,0x00, # TP0 A~D RP0 0x00,0x00,0x00,0x00,0x00, # TP1 A~D RP1 0x00,0x00,0x00,0x00,0x00, # TP2 A~D RP2 0x00,0x00,0x00,0x00,0x00, # TP3 A~D RP3 0x00,0x00,0x00,0x00,0x00, # TP4 A~D RP4 0x00,0x00,0x00,0x00,0x00, # TP5 A~D RP5 0x00,0x00,0x00,0x00,0x00, # TP6 A~D RP6 0x15,0x41,0xA8,0x32,0x30,0x0A, ] EPD_WIDTH = 128 # 122 EPD_HEIGHT = 250 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 FULL_UPDATE = 0 PART_UPDATE = 1 class EPD_2in13(framebuf.FrameBuffer): def __init__(self): self.reset_pin = Pin(RST_PIN, Pin.OUT) self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP) self.cs_pin = Pin(CS_PIN, Pin.OUT) self.width = EPD_WIDTH self.height = EPD_HEIGHT self.full_lut = lut_full_update self.partial_lut = lut_partial_update self.full_update = FULL_UPDATE self.part_update = PART_UPDATE self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer = bytearray(self.height * self.width // 8) super().__init__(self.buffer, self.width, self.height, framebuf.MONO_HLSB) self.init(FULL_UPDATE) def digital_write(self, pin, value): pin.value(value) def digital_read(self, pin): return pin.value() def delay_ms(self, delaytime): utime.sleep(delaytime / 1000.0) def spi_writebyte(self, data): self.spi.write(bytearray(data)) def module_exit(self): self.digital_write(self.reset_pin, 0) # Hardware reset def reset(self): self.digital_write(self.reset_pin, 1) self.delay_ms(50) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(50) def send_command(self, command): self.digital_write(self.dc_pin, 0) self.digital_write(self.cs_pin, 0) self.spi_writebyte([command]) self.digital_write(self.cs_pin, 1) def send_data(self, data): self.digital_write(self.dc_pin, 1) self.digital_write(self.cs_pin, 0) self.spi_writebyte([data]) self.digital_write(self.cs_pin, 1) def send_data1(self, buf): self.digital_write(self.dc_pin, 1) self.digital_write(self.cs_pin, 0) self.spi.write(bytearray(buf)) self.digital_write(self.cs_pin, 1) def ReadBusy(self): print('busy') while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy self.delay_ms(10) print('busy release') def TurnOnDisplay(self): self.send_command(0x22) self.send_data(0xC7) self.send_command(0x20) self.ReadBusy() def TurnOnDisplayPart(self): self.send_command(0x22) self.send_data(0x0c) self.send_command(0x20) self.ReadBusy() def init(self, update): print('init') self.reset() if(update == self.full_update): self.ReadBusy() self.send_command(0x12) # soft reset self.ReadBusy() self.send_command(0x74) #set analog block control self.send_data(0x54) self.send_command(0x7E) #set digital block control self.send_data(0x3B) self.send_command(0x01) #Driver output control self.send_data(0x27) self.send_data(0x01) self.send_data(0x01) self.send_command(0x11) #data entry mode self.send_data(0x01) self.send_command(0x44) #set Ram-X address start/end position self.send_data(0x00) self.send_data(0x0F) #0x0C-->(15+1)*8=128 self.send_command(0x45) #set Ram-Y address start/end position self.send_data(0x27) #0xF9-->(249+1)=250 self.send_data(0x01) self.send_data(0x2e) self.send_data(0x00) self.send_command(0x3C) #BorderWaveform self.send_data(0x03) self.send_command(0x2C) #VCOM Voltage self.send_data(0x55) # self.send_command(0x03) self.send_data(self.full_lut[70]) self.send_command(0x04) # self.send_data(self.full_lut[71]) self.send_data(self.full_lut[72]) self.send_data(self.full_lut[73]) self.send_command(0x3A) #Dummy Line self.send_data(self.full_lut[74]) self.send_command(0x3B) #Gate time self.send_data(self.full_lut[75]) self.send_command(0x32) for count in range(70): self.send_data(self.full_lut[count]) self.send_command(0x4E) # set RAM x address count to 0 self.send_data(0x00) self.send_command(0x4F) # set RAM y address count to 0X127 self.send_data(0x0) self.send_data(0x00) self.ReadBusy() else: self.send_command(0x2C) #VCOM Voltage self.send_data(0x26) self.ReadBusy() self.send_command(0x32) for count in range(70): self.send_data(self.partial_lut[count]) self.send_command(0x37) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.send_data(0x40) self.send_data(0x00) self.send_data(0x00) self.send_command(0x22) self.send_data(0xC0) self.send_command(0x20) self.ReadBusy() self.send_command(0x3C) #BorderWaveform self.send_data(0x01) return 0 def display(self, image): self.send_command(0x24) self.send_data1(image) self.TurnOnDisplay() def displayPartial(self, image): self.send_command(0x24) self.send_data1(image) self.send_command(0x26) self.send_data1(image) self.TurnOnDisplayPart() def displayPartBaseImage(self, image): self.send_command(0x24) self.send_data1(image) self.send_command(0x26) self.send_data1(image) self.TurnOnDisplay() def Clear(self, color): self.send_command(0x24) self.send_data1([color] * self.height * int(self.width / 8)) self.send_command(0x26) self.send_data1([color] * self.height * int(self.width / 8)) self.TurnOnDisplay() def sleep(self): self.send_command(0x10) #enter deep sleep self.send_data(0x03) self.delay_ms(2000) self.module_exit() if __name__=='__main__': epd = EPD_2in13() epd.Clear(0xff) epd.fill(0xff) epd.text("Waveshare", 0, 10, 0x00) epd.text("ePaper-2.13", 0, 30, 0x00) epd.text("Raspberry Pico", 0, 50, 0x00) epd.text("Hello World", 0, 70, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.vline(10, 90, 60, 0x00) epd.vline(90, 90, 60, 0x00) epd.hline(10, 90, 80, 0x00) epd.hline(10, 150, 80, 0x00) epd.line(10, 90, 90, 150, 0x00) epd.line(90, 90, 10, 150, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.rect(10, 180, 50, 40, 0x00) epd.fill_rect(60, 180, 50, 40, 0x00) epd.displayPartBaseImage(epd.buffer) epd.delay_ms(2000) epd.init(epd.part_update) for i in range(0, 10): epd.fill_rect(40, 230, 40, 10, 0xff) epd.text(str(i), 60, 230, 0x00) epd.displayPartial(epd.buffer) epd.init(epd.full_update) epd.Clear(0xff) epd.delay_ms(2000) epd.sleep()