# ***************************************************************************** # * | File : epd1in54.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V3.1 # * | Date : 2019-06-20 # # | Info : python demo # ----------------------------------------------------------------------------- # V3.1(2019-06-18): # 2.remove commands define: # #define PANEL_SETTING 0x00 # #define POWER_SETTING 0x01 # #define POWER_OFF 0x02 # #define POWER_OFF_SEQUENCE_SETTING 0x03 # #define POWER_ON 0x04 # #define POWER_ON_MEASURE 0x05 # #define BOOSTER_SOFT_START 0x06 # #define DEEP_SLEEP 0x07 # #define DATA_START_TRANSMISSION_1 0x10 # #define DATA_STOP 0x11 # #define DISPLAY_REFRESH 0x12 # #define DATA_START_TRANSMISSION_2 0x13 # #define PLL_CONTROL 0x30 # #define TEMPERATURE_SENSOR_COMMAND 0x40 # #define TEMPERATURE_SENSOR_CALIBRATION 0x41 # #define TEMPERATURE_SENSOR_WRITE 0x42 # #define TEMPERATURE_SENSOR_READ 0x43 # #define VCOM_AND_DATA_INTERVAL_SETTING 0x50 # #define LOW_POWER_DETECTION 0x51 # #define TCON_SETTING 0x60 # #define TCON_RESOLUTION 0x61 # #define SOURCE_AND_GATE_START_SETTING 0x62 # #define GET_STATUS 0x71 # #define AUTO_MEASURE_VCOM 0x80 # #define VCOM_VALUE 0x81 # #define VCM_DC_SETTING_REGISTER 0x82 # #define PROGRAM_MODE 0xA0 # #define ACTIVE_PROGRAM 0xA1 # #define READ_OTP_DATA 0xA2 # ----------------------------------------------------------------------------- # V3.0(2018-11-01): # # 1.Remove: # digital_write(self, pin, value) # digital_read(self, pin) # delay_ms(self, delaytime) # set_lut(self, lut) # self.lut = self.lut_full_update # * 2.Change: # display_frame -> TurnOnDisplay # set_memory_area -> SetWindow # set_memory_pointer -> SetCursor # * 3.How to use # epd = epd1in54.EPD() # epd.init(epd.lut_full_update) # image = Image.new('1', (epd1in54.EPD_WIDTH, epd1in54.EPD_HEIGHT), 255) # ... # drawing ...... # ... # epd.display(getbuffer(image)) # ******************************************************************************/ # 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. # import logging from . import epdconfig # Display resolution EPD_WIDTH = 200 EPD_HEIGHT = 200 logger = logging.getLogger(__name__) class EPD: def __init__(self): self.reset_pin = epdconfig.RST_PIN self.dc_pin = epdconfig.DC_PIN self.busy_pin = epdconfig.BUSY_PIN self.cs_pin = epdconfig.CS_PIN self.width = EPD_WIDTH self.height = EPD_HEIGHT lut_full_update = [ 0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22, 0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88, 0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51, 0x35, 0x51, 0x51, 0x19, 0x01, 0x00 ] lut_partial_update = [ 0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ] # Hardware reset def reset(self): epdconfig.digital_write(self.reset_pin, 1) epdconfig.delay_ms(200) epdconfig.digital_write(self.reset_pin, 0) # module reset epdconfig.delay_ms(5) epdconfig.digital_write(self.reset_pin, 1) epdconfig.delay_ms(200) def send_command(self, command): epdconfig.digital_write(self.dc_pin, 0) epdconfig.digital_write(self.cs_pin, 0) epdconfig.spi_writebyte([command]) epdconfig.digital_write(self.cs_pin, 1) def send_data(self, data): epdconfig.digital_write(self.dc_pin, 1) epdconfig.digital_write(self.cs_pin, 0) epdconfig.spi_writebyte([data]) epdconfig.digital_write(self.cs_pin, 1) def ReadBusy(self): logger.debug("e-Paper busy") while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy epdconfig.delay_ms(100) logger.debug("e-Paper busy release") def TurnOnDisplay(self): self.send_command(0x22) # DISPLAY_UPDATE_CONTROL_2 self.send_data(0xC4) self.send_command(0x20) # MASTER_ACTIVATION self.send_command(0xFF) # TERMINATE_FRAME_READ_WRITE self.ReadBusy() def SetWindow(self, x_start, y_start, x_end, y_end): self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION # x point must be the multiple of 8 or the last 3 bits will be ignored self.send_data((x_start >> 3) & 0xFF) self.send_data((x_end >> 3) & 0xFF) self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION self.send_data(y_start & 0xFF) self.send_data((y_start >> 8) & 0xFF) self.send_data(y_end & 0xFF) self.send_data((y_end >> 8) & 0xFF) def SetCursor(self, x, y): self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER # x point must be the multiple of 8 or the last 3 bits will be ignored self.send_data((x >> 3) & 0xFF) self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER self.send_data(y & 0xFF) self.send_data((y >> 8) & 0xFF) # self.ReadBusy() def init(self, lut): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() self.send_command(0x01) # DRIVER_OUTPUT_CONTROL self.send_data((EPD_HEIGHT - 1) & 0xFF) self.send_data(((EPD_HEIGHT - 1) >> 8) & 0xFF) self.send_data(0x00) # GD = 0 SM = 0 TB = 0 self.send_command(0x0C) # BOOSTER_SOFT_START_CONTROL self.send_data(0xD7) self.send_data(0xD6) self.send_data(0x9D) self.send_command(0x2C) # WRITE_VCOM_REGISTER self.send_data(0xA8) # VCOM 7C self.send_command(0x3A) # SET_DUMMY_LINE_PERIOD self.send_data(0x1A) # 4 dummy lines per gate self.send_command(0x3B) # SET_GATE_TIME self.send_data(0x08) # 2us per line self.send_command(0x11) # DATA_ENTRY_MODE_SETTING self.send_data(0x03) # X increment Y increment # set the look-up table register self.send_command(0x32) for i in range(0, len(lut)): self.send_data(lut[i]) # EPD hardware init end return 0 def getbuffer(self, image): buf = [0xFF] * (int(self.width / 8) * self.height) image_monocolor = image.convert('1') imwidth, imheight = image_monocolor.size pixels = image_monocolor.load() if(imwidth == self.width and imheight == self.height): logger.debug("Horizontal") for y in range(imheight): for x in range(imwidth): # Set the bits for the column of pixels at the current position. if pixels[x, y] == 0: buf[int((x + y * self.width) / 8)] &= ~(0x80 >> (x % 8)) elif(imwidth == self.height and imheight == self.width): logger.debug("Vertical") for y in range(imheight): for x in range(imwidth): newx = y newy = self.height - x - 1 if pixels[x, y] == 0: buf[int((newx + newy*self.width) / 8)] &= ~(0x80 >> (y % 8)) return buf def display(self, image): if (image == None): return self.SetWindow(0, 0, self.width, self.height) for j in range(0, self.height): self.SetCursor(0, j) self.send_command(0x24) for i in range(0, int(self.width / 8)): self.send_data(image[i + j * int(self.width / 8)]) self.TurnOnDisplay() def Clear(self, color): # self.SetWindow(0, 0, self.width - 1, self.height - 1) # send the color data self.SetWindow(0, 0, self.width, self.height) # epdconfig.digital_write(self.dc_pin, 1) # epdconfig.digital_write(self.cs_pin, 0) for j in range(0, self.height): self.SetCursor(0, j) self.send_command(0x24) for i in range(0, int(self.width / 8)): self.send_data(color) # epdconfig.digital_write(self.cs_pin, 1) self.TurnOnDisplay() def sleep(self): self.send_command(0x10) # DEEP_SLEEP_MODE self.send_data(0x01) epdconfig.delay_ms(2000) epdconfig.module_exit() ### END OF FILE ###