# ***************************************************************************** # * | File : Pico_ePaper-2.7.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V1.0 # * | Date : 2021-06-03 # # | 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 # Display resolution EPD_WIDTH = 176 EPD_HEIGHT = 264 RST_PIN = 12 DC_PIN = 8 CS_PIN = 9 BUSY_PIN = 13 EPD_2in7_lut_vcom_dc = [ 0x00,0x00, 0x00,0x08,0x00,0x00,0x00,0x02, 0x60,0x28,0x28,0x00,0x00,0x01, 0x00,0x14,0x00,0x00,0x00,0x01, 0x00,0x12,0x12,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00 ] EPD_2in7_lut_ww = [ 0x40,0x08,0x00,0x00,0x00,0x02, 0x90,0x28,0x28,0x00,0x00,0x01, 0x40,0x14,0x00,0x00,0x00,0x01, 0xA0,0x12,0x12,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] EPD_2in7_lut_bw = [ 0x40,0x08,0x00,0x00,0x00,0x02, 0x90,0x28,0x28,0x00,0x00,0x01, 0x40,0x14,0x00,0x00,0x00,0x01, 0xA0,0x12,0x12,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] EPD_2in7_lut_bb = [ 0x80,0x08,0x00,0x00,0x00,0x02, 0x90,0x28,0x28,0x00,0x00,0x01, 0x80,0x14,0x00,0x00,0x00,0x01, 0x50,0x12,0x12,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] EPD_2in7_lut_wb = [ 0x80,0x08,0x00,0x00,0x00,0x02, 0x90,0x28,0x28,0x00,0x00,0x01, 0x80,0x14,0x00,0x00,0x00,0x01, 0x50,0x12,0x12,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] # # # # # # # # # # # # # # # # # # # full screen update LUT# # # # # # # # # # # # # # # # # # # # # # # 0~3 gray EPD_2in7_gray_lut_vcom =[ 0x00,0x00, 0x00,0x0A,0x00,0x00,0x00,0x01, 0x60,0x14,0x14,0x00,0x00,0x01, 0x00,0x14,0x00,0x00,0x00,0x01, 0x00,0x13,0x0A,0x01,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] # R21 EPD_2in7_gray_lut_ww =[ 0x40,0x0A,0x00,0x00,0x00,0x01, 0x90,0x14,0x14,0x00,0x00,0x01, 0x10,0x14,0x0A,0x00,0x00,0x01, 0xA0,0x13,0x01,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] # R22Hr EPD_2in7_gray_lut_bw =[ 0x40,0x0A,0x00,0x00,0x00,0x01, 0x90,0x14,0x14,0x00,0x00,0x01, 0x00,0x14,0x0A,0x00,0x00,0x01, 0x99,0x0C,0x01,0x03,0x04,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] # R23Hw EPD_2in7_gray_lut_wb =[ 0x40,0x0A,0x00,0x00,0x00,0x01, 0x90,0x14,0x14,0x00,0x00,0x01, 0x00,0x14,0x0A,0x00,0x00,0x01, 0x99,0x0B,0x04,0x04,0x01,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] # R24Hb EPD_2in7_gray_lut_bb =[ 0x80,0x0A,0x00,0x00,0x00,0x01, 0x90,0x14,0x14,0x00,0x00,0x01, 0x20,0x14,0x0A,0x00,0x00,0x01, 0x50,0x13,0x01,0x00,0x00,0x01, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00, ] class EPD_2in7: 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.lut_vcom_dc = EPD_2in7_lut_vcom_dc self.lut_ww = EPD_2in7_lut_ww self.lut_bw = EPD_2in7_lut_bw self.lut_bb = EPD_2in7_lut_bb self.lut_wb = EPD_2in7_lut_wb self.gray_lut_vcom = EPD_2in7_gray_lut_vcom self.gray_lut_ww = EPD_2in7_gray_lut_ww self.gray_lut_bw = EPD_2in7_gray_lut_bw self.gray_lut_wb = EPD_2in7_gray_lut_wb self.gray_lut_bb = EPD_2in7_gray_lut_bb self.black = 0x00 self.white = 0xff self.darkgray = 0xaa self.grayish = 0x55 self.spi = SPI(1) self.spi.init(baudrate=4000_000) self.dc_pin = Pin(DC_PIN, Pin.OUT) self.buffer_1Gray_Landscape = bytearray(self.height * self.width // 8) self.buffer_1Gray_Portrait = bytearray(self.height * self.width // 8) self.buffer_4Gray = bytearray(self.height * self.width // 4) self.image1Gray_Landscape = framebuf.FrameBuffer(self.buffer_1Gray_Landscape, self.height, self.width, framebuf.MONO_VLSB) self.image1Gray_Portrait = framebuf.FrameBuffer(self.buffer_1Gray_Portrait, self.width, self.height, framebuf.MONO_HLSB) self.image4Gray = framebuf.FrameBuffer(self.buffer_4Gray, self.width, self.height, framebuf.GS2_HMSB) self.EPD_2IN7_Init_4Gray() self.EPD_2IN7_Clear() utime.sleep_ms(500) 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(200) self.digital_write(self.reset_pin, 0) self.delay_ms(2) self.digital_write(self.reset_pin, 1) self.delay_ms(200) 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 ReadBusy(self): print("e-Paper busy") while(self.digital_read(self.busy_pin) == 0): # 0: idle, 1: busy self.send_command(0x71) self.delay_ms(200) print("e-Paper busy release") def SetLut(self): self.send_command(0x20) for count in range(0, 44): self.send_data(self.lut_vcom_dc[count]) self.send_command(0x21) for count in range(0, 42): self.send_data(self.lut_ww[count]) self.send_command(0x22) for count in range(0, 42): self.send_data(self.lut_bw[count]) self.send_command(0x23) for count in range(0, 42): self.send_data(self.lut_bb[count]) self.send_command(0x24) for count in range(0, 42): self.send_data(self.lut_wb[count]) def gray_SetLut(self): self.send_command(0x20) for count in range(0, 44): self.send_data(self.gray_lut_vcom[count]) self.send_command(0x21) for count in range(0, 42): self.send_data(self.gray_lut_ww[count]) self.send_command(0x22) for count in range(0, 42): self.send_data(self.gray_lut_bw[count]) self.send_command(0x23) for count in range(0, 42): self.send_data(self.gray_lut_wb[count]) self.send_command(0x24) for count in range(0, 42): self.send_data(self.gray_lut_bb[count]) self.send_command(0x25) for count in range(0, 42): self.send_data(self.gray_lut_ww[count]) def EPD_2IN7_Init(self): self.reset(); self.send_command(0x01) # 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_data(0x09) # VDHR self.send_command(0x06) # BOOSTER_SOFT_START self.send_data(0x07) self.send_data(0x07) self.send_data(0x17) # Power optimization self.send_command(0xF8) self.send_data(0x60) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0x89) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0x90) self.send_data(0x00) # Power optimization self.send_command(0xF8) self.send_data(0x93) self.send_data(0x2A) # Power optimization self.send_command(0xF8) self.send_data(0xA0) self.send_data(0xA5) # Power optimization self.send_command(0xF8) self.send_data(0xA1) self.send_data(0x00) # Power optimization self.send_command(0xF8) self.send_data(0x73) self.send_data(0x41) self.send_command(0x16) # PARTIAL_DISPLAY_REFRESH self.send_data(0x00) self.send_command(0x04) # POWER_ON self.ReadBusy(); self.send_command(0x00) # PANEL_SETTING self.send_data(0xAF) # KW-BF KWR-AF BWROTP 0f self.send_command(0x30) # PLL_CONTROL self.send_data(0x3A) # 3A 100HZ 29 150Hz 39 200HZ 31 171HZ self.send_command(0x82) # VCM_DC_SETTING_REGISTER self.send_data(0x12) self.SetLut() def EPD_2IN7_Init_4Gray(self): self.reset() self.send_command(0x01) # POWER SETTING self.send_data (0x03) self.send_data (0x00) self.send_data (0x2b) self.send_data (0x2b) self.send_command(0x06) # booster soft start self.send_data (0x07) # A self.send_data (0x07) # B self.send_data (0x17) # C self.send_command(0xF8) # boost?? self.send_data (0x60) self.send_data (0xA5) self.send_command(0xF8) # boost?? self.send_data (0x89) self.send_data (0xA5) self.send_command(0xF8) # boost?? self.send_data (0x90) self.send_data (0x00) self.send_command(0xF8) # boost?? self.send_data (0x93) self.send_data (0x2A) self.send_command(0xF8) # boost?? self.send_data (0xa0) self.send_data (0xa5) self.send_command(0xF8) # boost?? self.send_data (0xa1) self.send_data (0x00) self.send_command(0xF8) # boost?? self.send_data (0x73) self.send_data (0x41) self.send_command(0x16) self.send_data(0x00) self.send_command(0x04) self.ReadBusy() self.send_command(0x00) # panel setting self.send_data(0xbf) # KW-BF KWR-AF BWROTP 0f self.send_command(0x30) # PLL setting self.send_data (0x90) # 100hz self.send_command(0x61) # resolution setting self.send_data (0x00) # 176 self.send_data (0xb0) self.send_data (0x01) # 264 self.send_data (0x08) self.send_command(0x82) # vcom_DC setting self.send_data (0x12) self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING self.send_data(0x97) def EPD_2IN7_Clear(self): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for j in range(0, high): for i in range(0, wide): self.send_data(0xff) self.send_command(0x13) for j in range(0, high): for i in range(0, wide): self.send_data(0xff) self.send_command(0x12) self.ReadBusy() def EPD_2IN7_Display_Portrait(self,Image): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for j in range(0, high): for i in range(0, wide): self.send_data(0xff) self.send_command(0x13) for j in range(0, high): for i in range(0, wide): self.send_data(Image[i + j * wide]) def EPD_2IN7_Display_Landscape(self,Image): high = self.height if( self.width % 8 == 0) : wide = self.width // 8 else : wide = self.width // 8 + 1 self.send_command(0x10) for j in range(0, high): for i in range(0, wide): self.send_data(0xff) self.send_command(0x13) for j in range(0, high): for i in range(0, wide): self.send_data(Image[(21-i) * high + j]) self.send_command(0x12) self.ReadBusy() def EPD_2IN7_4Gray_Display(self,Image): self.send_command(0x10) for i in range(0, 5808): temp3=0 for j in range(0, 2): temp1 = Image[i*2+j] for k in range(0, 2): temp2 = temp1&0x03 if(temp2 == 0x03): temp3 |= 0x01 # white elif(temp2 == 0x00): temp3 |= 0x00 # black elif(temp2 == 0x02): temp3 |= 0x00 # gray1 else: # 0x01 temp3 |= 0x01 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x01; elif(temp2 == 0x00): # black temp3 |= 0x00; elif(temp2 == 0x02): temp3 |= 0x00 # gray1 else: # 0x01 temp3 |= 0x01 # gray2 if (( j!=1 ) | ( k!=1 )): temp3 <<= 1 temp1 >>= 2 self.send_data(temp3) self.send_command(0x13) for i in range(0, 5808): temp3=0 for j in range(0, 2): temp1 = Image[i*2+j] for k in range(0, 2): temp2 = temp1&0x03 if(temp2 == 0x03): temp3 |= 0x01 # white elif(temp2 == 0x00): temp3 |= 0x00 # black elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 temp3 <<= 1 temp1 >>= 2 temp2 = temp1&0x03 if(temp2 == 0x03): # white temp3 |= 0x01; elif(temp2 == 0x00): # black temp3 |= 0x00; elif(temp2 == 0x02): temp3 |= 0x01 # gray1 else: # 0x01 temp3 |= 0x00 # gray2 if (( j!=1 ) | ( k!=1 )): temp3 <<= 1 temp1 >>= 2 self.send_data(temp3) self.gray_SetLut() self.send_command(0x12) self.delay_ms(500) self.ReadBusy() def Sleep(self): self.send_command(0X50) self.send_data(0xf7) self.send_command(0X02) # power off self.send_command(0X07) # deep sleep self.send_data(0xA5) if __name__=='__main__': epd = EPD_2in7() epd.image1Gray_Landscape.fill(0xff) epd.image1Gray_Portrait.fill(0xff) epd.image4Gray.fill(0xff) epd.image4Gray.text("Waveshare", 5, 5, epd.black) epd.image4Gray.text("Pico_ePaper-2.7", 5, 20, epd.black) epd.image4Gray.text("Raspberry Pico", 5, 35, epd.black) epd.EPD_2IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.vline(10, 60, 60, epd.black) epd.image4Gray.vline(90, 60, 60, epd.black) epd.image4Gray.hline(10, 60, 80, epd.black) epd.image4Gray.hline(10, 120, 80, epd.black) epd.image4Gray.line(10, 60, 90, 120, epd.black) epd.image4Gray.line(90, 60, 10, 120, epd.black) epd.EPD_2IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.rect(10, 136, 50, 80, epd.black) epd.image4Gray.fill_rect(70, 136, 50, 80, epd.black) epd.EPD_2IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.image4Gray.fill_rect(0, 232, 88, 16, epd.black) epd.image4Gray.text('GRAY1',24, 236, epd.white) epd.image4Gray.text('GRAY2',24, 252, epd.grayish) epd.image4Gray.text('GRAY3',112, 236, epd.darkgray) epd.image4Gray.text('GRAY4',112, 252, epd.black) epd.EPD_2IN7_4Gray_Display(epd.buffer_4Gray) epd.delay_ms(500) epd.EPD_2IN7_Init() epd.EPD_2IN7_Clear() epd.image1Gray_Landscape.text("Waveshare", 5, 5, epd.black) epd.image1Gray_Landscape.text("Pico_ePaper-2.7", 5, 20, epd.black) epd.image1Gray_Landscape.text("Raspberry Pico", 5, 35, epd.black) epd.EPD_2IN7_Display_Landscape(epd.buffer_1Gray_Landscape) epd.delay_ms(500) epd.EPD_2IN7_Clear() print("Sleep") epd.Sleep()