# ***************************************************************************** # * | File : Pico_ePaper-2.13_V3.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-11-01 # # | 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 EPD_WIDTH = 122 EPD_HEIGHT = 250 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 class EPD_2in13_V4_Portrait(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) if EPD_WIDTH % 8 == 0: self.width = EPD_WIDTH else : self.width = (EPD_WIDTH // 8) * 8 + 8 self.height = EPD_HEIGHT 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() ''' function :Change the pin state parameter: pin : pin value : state ''' def digital_write(self, pin, value): pin.value(value) ''' function : Read the pin state parameter: pin : pin ''' def digital_read(self, pin): return pin.value() ''' function : The time delay function parameter: delaytime : ms ''' def delay_ms(self, delaytime): utime.sleep(delaytime / 1000.0) ''' function : Write data to SPI parameter: data : data ''' def spi_writebyte(self, data): self.spi.write(bytearray(data)) ''' function :Hardware reset parameter: ''' def reset(self): self.digital_write(self.reset_pin, 1) self.delay_ms(20) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(20) ''' function :send command parameter: command : Command register ''' 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) ''' function :send data parameter: data : Write data ''' 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) ''' function :Wait until the busy_pin goes LOW parameter: ''' def ReadBusy(self): print('busy') self.delay_ms(10) while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy self.delay_ms(10) print('busy release') ''' function : Turn On Display parameter: ''' def TurnOnDisplay(self): self.send_command(0x22) # Display Update Control self.send_data(0xf7) self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Turn On Display Fast parameter: ''' def TurnOnDisplay_Fast(self): self.send_command(0x22) # Display Update Control self.send_data(0xC7) # fast:0x0c, quality:0x0f, 0xcf self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Turn On Display Part parameter: ''' def TurnOnDisplayPart(self): self.send_command(0x22) # Display Update Control self.send_data(0xff) # fast:0x0c, quality:0x0f, 0xcf self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Setting the display window parameter: Xstart : X-axis starting position Ystart : Y-axis starting position Xend : End position of X-axis Yend : End position of Y-axis ''' def SetWindows(self, Xstart, Ystart, Xend, Yend): self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION self.send_data((Xstart >> 3) & 0xFF) self.send_data((Xend >> 3) & 0xFF) self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION self.send_data(Ystart & 0xFF) self.send_data((Ystart >> 8) & 0xFF) self.send_data(Yend & 0xFF) self.send_data((Yend >> 8) & 0xFF) ''' function : Set Cursor parameter: Xstart : X-axis starting position Ystart : Y-axis starting position ''' def SetCursor(self, Xstart, Ystart): self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER self.send_data(Xstart & 0xFF) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(Ystart & 0xFF) self.send_data((Ystart >> 8) & 0xFF) ''' function : Initialize the e-Paper register parameter: ''' def init(self): print('init') self.reset() self.delay_ms(100) self.ReadBusy() self.send_command(0x12) # SWRESET self.ReadBusy() self.send_command(0x01) # Driver output control self.send_data(0xf9) self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x03) self.SetWindows(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x3C) # BorderWaveform self.send_data(0x05) self.send_command(0x21) # Display update control self.send_data(0x00) self.send_data(0x80) self.send_command(0x18) # Read built-in temperature sensor self.send_data(0x80) self.ReadBusy() ''' function : Initialize the e-Paper fast register parameter: ''' def init_fast(self): print('init_fast') self.reset() self.delay_ms(100) self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x18) # Read built-in temperature sensor self.send_command(0x80) self.send_command(0x11) # data entry mode self.send_data(0x03) self.SetWindow(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x22) # Load temperature value self.send_data(0xB1) self.send_command(0x20) self.ReadBusy() self.send_command(0x1A) # Write to temperature register self.send_data(0x64) self.send_data(0x00) self.send_command(0x22) # Load temperature value self.send_data(0x91) self.send_command(0x20) self.ReadBusy() return 0 ''' function : Clear screen parameter: ''' def Clear(self): self.send_command(0x24) self.send_data1([0xff] * self.height * int(self.width / 8)) self.TurnOnDisplay() ''' function : Sends the image buffer in RAM to e-Paper and displays parameter: image : Image data ''' def display(self, image): self.send_command(0x24) self.send_data1(image) self.TurnOnDisplay() def display_fast(self, image): self.send_command(0x24) self.send_data2(image) self.TurnOnDisplay_Fast() ''' function : Refresh a base image parameter: image : Image data ''' def Display_Base(self, image): self.send_command(0x24) self.send_data1(image) self.send_command(0x26) self.send_data1(image) self.TurnOnDisplay() ''' function : Sends the image buffer in RAM to e-Paper and partial refresh parameter: image : Image data ''' def displayPartial(self, image): self.reset() self.send_command(0x3C) # BorderWavefrom self.send_data(0x80) self.send_command(0x01) # Driver output control self.send_data(0xF9) self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) # data entry mode self.send_data(0x03) self.SetWindows(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x24) # WRITE_RAM self.send_data1(image) self.TurnOnDisplayPart() ''' function : Enter sleep mode parameter: ''' def sleep(self): self.send_command(0x10) #enter deep sleep self.send_data(0x01) self.delay_ms(100) class EPD_2in13_V4_Landscape(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) if EPD_WIDTH % 8 == 0: self.width = EPD_WIDTH else : self.width = (EPD_WIDTH // 8) * 8 + 8 self.height = EPD_HEIGHT 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.height, self.width, framebuf.MONO_VLSB) self.init() 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 reset(self): self.digital_write(self.reset_pin, 1) self.delay_ms(20) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(20) 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') self.delay_ms(10) while(self.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy self.delay_ms(10) print('busy release') ''' function : Turn On Display parameter: ''' def TurnOnDisplay(self): self.send_command(0x22) # Display Update Control self.send_data(0xf7) self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Turn On Display Fast parameter: ''' def TurnOnDisplay_Fast(self): self.send_command(0x22) # Display Update Control self.send_data(0xC7) # fast:0x0c, quality:0x0f, 0xcf self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Turn On Display Part parameter: ''' def TurnOnDisplayPart(self): self.send_command(0x22) # Display Update Control self.send_data(0xff) # fast:0x0c, quality:0x0f, 0xcf self.send_command(0x20) # Activate Display Update Sequence self.ReadBusy() ''' function : Setting the display window parameter: Xstart : X-axis starting position Ystart : Y-axis starting position Xend : End position of X-axis Yend : End position of Y-axis ''' def SetWindows(self, Xstart, Ystart, Xend, Yend): self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION self.send_data((Xstart >> 3) & 0xFF) self.send_data((Xend >> 3) & 0xFF) self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION self.send_data(Ystart & 0xFF) self.send_data((Ystart >> 8) & 0xFF) self.send_data(Yend & 0xFF) self.send_data((Yend >> 8) & 0xFF) ''' function : Set Cursor parameter: Xstart : X-axis starting position Ystart : Y-axis starting position ''' def SetCursor(self, Xstart, Ystart): self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER self.send_data(Xstart & 0xFF) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(Ystart & 0xFF) self.send_data((Ystart >> 8) & 0xFF) ''' function : Initialize the e-Paper register parameter: ''' def init(self): print('init') self.reset() self.delay_ms(100) self.ReadBusy() self.send_command(0x12) # SWRESET self.ReadBusy() self.send_command(0x01) # Driver output control self.send_data(0xf9) self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) #data entry mode self.send_data(0x07) self.SetWindows(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x3C) # BorderWaveform self.send_data(0x05) self.send_command(0x21) # Display update control self.send_data(0x00) self.send_data(0x80) self.send_command(0x18) # Read built-in temperature sensor self.send_data(0x80) self.ReadBusy() ''' function : Initialize the e-Paper fast register parameter: ''' def init_fast(self): print('init_fast') self.reset() self.delay_ms(100) self.send_command(0x12) #SWRESET self.ReadBusy() self.send_command(0x18) # Read built-in temperature sensor self.send_command(0x80) self.send_command(0x11) # data entry mode self.send_data(0x07) self.SetWindow(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x22) # Load temperature value self.send_data(0xB1) self.send_command(0x20) self.ReadBusy() self.send_command(0x1A) # Write to temperature register self.send_data(0x64) self.send_data(0x00) self.send_command(0x22) # Load temperature value self.send_data(0x91) self.send_command(0x20) self.ReadBusy() return 0 ''' function : Clear screen parameter: ''' def Clear(self): self.send_command(0x24) self.send_data1([0xff] * self.height * int(self.width / 8)) self.TurnOnDisplay() ''' function : Sends the image buffer in RAM to e-Paper and displays parameter: image : Image data ''' def display(self, image): self.send_command(0x24) for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay() def display_fast(self, image): self.send_command(0x24) for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay_Fast() ''' function : Refresh a base image parameter: image : Image data ''' def Display_Base(self, image): self.send_command(0x24) for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.send_command(0x26) for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplay() ''' function : Sends the image buffer in RAM to e-Paper and partial refresh parameter: image : Image data ''' def displayPartial(self, image): self.reset() self.send_command(0x3C) # BorderWavefrom self.send_data(0x80) self.send_command(0x01) # Driver output control self.send_data(0xF9) self.send_data(0x00) self.send_data(0x00) self.send_command(0x11) # data entry mode self.send_data(0x07) self.SetWindows(0, 0, self.width-1, self.height-1) self.SetCursor(0, 0) self.send_command(0x24) # WRITE_RAM for j in range(int(self.width / 8) - 1, -1, -1): for i in range(0, self.height): self.send_data(image[i + j * self.height]) self.TurnOnDisplayPart() ''' function : Enter sleep mode parameter: ''' def sleep(self): self.send_command(0x10) #enter deep sleep self.send_data(0x01) self.delay_ms(100) if __name__=='__main__': epd = EPD_2in13_V4_Landscape() epd.Clear() epd.fill(0xff) epd.text("Waveshare", 0, 10, 0x00) epd.text("ePaper-2.13_V4", 0, 20, 0x00) epd.text("Raspberry Pico", 0, 30, 0x00) epd.text("Hello World", 0, 40, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.vline(5, 55, 60, 0x00) epd.vline(100, 55, 60, 0x00) epd.hline(5, 55, 95, 0x00) epd.hline(5, 115, 95, 0x00) epd.line(5, 55, 100, 115, 0x00) epd.line(100, 55, 5, 115, 0x00) epd.display(epd.buffer) epd.delay_ms(2000) epd.rect(130, 10, 40, 80, 0x00) epd.fill_rect(190, 10, 40, 80, 0x00) epd.Display_Base(epd.buffer) epd.delay_ms(2000) epd.init() for i in range(0, 10): epd.fill_rect(175, 105, 10, 10, 0xff) epd.text(str(i), 177, 106, 0x00) epd.displayPartial(epd.buffer) print("sleep") epd.init() epd.Clear() epd.delay_ms(2000) epd.sleep() epd = EPD_2in13_V4_Portrait() epd.Clear() epd.fill(0xff) epd.text("Waveshare", 0, 10, 0x00) epd.text("ePaper-2.13_V4", 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.Display_Base(epd.buffer) epd.delay_ms(2000) epd.init() 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) print("sleep") epd.init() epd.Clear() epd.delay_ms(2000) epd.sleep()