# /***************************************************************************** # * | File : EPD_1in54.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V3.0 # * | Date : 2018-11-06 # * | Info : python2 demo # * 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 # get_frame_buffer -> getbuffer # set_frame_memory -> display # * 3.How to use # epd = epd2in9.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 epdconfig from PIL import Image import RPi.GPIO as GPIO # Display resolution EPD_WIDTH = 128 EPD_HEIGHT = 296 # EPD2IN9 commands DRIVER_OUTPUT_CONTROL = 0x01 BOOSTER_SOFT_START_CONTROL = 0x0C GATE_SCAN_START_POSITION = 0x0F DEEP_SLEEP_MODE = 0x10 DATA_ENTRY_MODE_SETTING = 0x11 SW_RESET = 0x12 TEMPERATURE_SENSOR_CONTROL = 0x1A MASTER_ACTIVATION = 0x20 DISPLAY_UPDATE_CONTROL_1 = 0x21 DISPLAY_UPDATE_CONTROL_2 = 0x22 WRITE_RAM = 0x24 WRITE_VCOM_REGISTER = 0x2C WRITE_LUT_REGISTER = 0x32 SET_DUMMY_LINE_PERIOD = 0x3A SET_GATE_TIME = 0x3B BORDER_WAVEFORM_CONTROL = 0x3C SET_RAM_X_ADDRESS_START_END_POSITION = 0x44 SET_RAM_Y_ADDRESS_START_END_POSITION = 0x45 SET_RAM_X_ADDRESS_COUNTER = 0x4E SET_RAM_Y_ADDRESS_COUNTER = 0x4F TERMINATE_FRAME_READ_WRITE = 0xFF 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, GPIO.HIGH) epdconfig.delay_ms(200) epdconfig.digital_write(self.reset_pin, GPIO.LOW) # module reset epdconfig.delay_ms(200) epdconfig.digital_write(self.reset_pin, GPIO.HIGH) epdconfig.delay_ms(200) def send_command(self, command): epdconfig.digital_write(self.cs_pin, GPIO.LOW) epdconfig.digital_write(self.dc_pin, GPIO.HIGH) epdconfig.spi_writebyte([command]) epdconfig.digital_write(self.cs_pin, GPIO.HIGH) def send_data(self, data): epdconfig.digital_write(self.cs_pin, GPIO.LOW) epdconfig.digital_write(self.dc_pin, GPIO.HIGH) epdconfig.spi_writebyte([data]) epdconfig.digital_write(self.cs_pin, GPIO.HIGH) def wait_until_idle(self): while(epdconfig.digital_read(self.busy_pin) == 1): # 0: idle, 1: busy epdconfig.delay_ms(100) def TurnOnDisplay(self): self.send_command(DISPLAY_UPDATE_CONTROL_2) self.send_data(0xC4) self.send_command(MASTER_ACTIVATION) self.send_command(TERMINATE_FRAME_READ_WRITE) self.wait_until_idle() def SetWindow(self, x_start, y_start, x_end, y_end): self.send_command(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(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(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(SET_RAM_Y_ADDRESS_COUNTER) self.send_data(y & 0xFF) self.send_data((y >> 8) & 0xFF) self.wait_until_idle() def init(self, lut): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() self.send_command(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(BOOSTER_SOFT_START_CONTROL) self.send_data(0xD7) self.send_data(0xD6) self.send_data(0x9D) self.send_command(WRITE_VCOM_REGISTER) self.send_data(0xA8) # VCOM 7C self.send_command(SET_DUMMY_LINE_PERIOD) self.send_data(0x1A) # 4 dummy lines per gate self.send_command(SET_GATE_TIME) self.send_data(0x08) # 2us per line self.send_command(BORDER_WAVEFORM_CONTROL) self.send_data(0x03) self.send_command(DATA_ENTRY_MODE_SETTING) self.send_data(0x03) # X increment Y increment self.send_command(WRITE_LUT_REGISTER) for i in range(0, len(lut)): self.send_data(lut[i]) # EPD hardware init end return 0 def getbuffer(self, image): # print "bufsiz = ",(self.width/8) * self.height buf = [0xFF] * ((self.width/8) * self.height) image_monocolor = image.convert('1') imwidth, imheight = image_monocolor.size pixels = image_monocolor.load() # print "imwidth = %d, imheight = %d",imwidth,imheight if(imwidth == self.width and imheight == self.height): print "Vertical" 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[(x + y * self.width) / 8] &= ~(0x80 >> (x % 8)) elif(imwidth == self.height and imheight == self.width): print "Horizontal" for y in range(imheight): for x in range(imwidth): newx = y newy = self.height - x - 1 if pixels[x, y] == 0: buf[(newx + newy*self.width) / 8] &= ~(0x80 >> (y % 8)) return buf def display(self, image): if (image == None): return self.SetWindow(0, 0, self.width - 1, self.height - 1) for j in range(0, self.height): self.SetCursor(0, j) self.send_command(WRITE_RAM) for i in range(0, self.width / 8): self.send_data(image[i + j * (self.width / 8)]) self.TurnOnDisplay() def Clear(self, color): self.SetWindow(0, 0, self.width - 1, self.height - 1) for j in range(0, self.height): self.SetCursor(0, j) self.send_command(WRITE_RAM) for i in range(0, self.width / 8): self.send_data(color) self.TurnOnDisplay() def sleep(self): self.send_command(DEEP_SLEEP_MODE) self.send_data(0x01) ### END OF FILE ###