# /***************************************************************************** # * | File : EPD_1in54.py # * | Author : Waveshare team # * | Function : Electronic paper driver # * | Info : # *---------------- # * | This version: V3.0 # * | Date : 2018-11-05 # * | Info : python2 demo # * 1.Remove: # digital_write(self, pin, value) # digital_read(self, pin) # delay_ms(self, delaytime) # set_rotate(self, rotate) # set_pixel(self, frame_buffer, x, y, colored) # set_absolute_pixel(self, frame_buffer, x, y, colored) # display_string_at(self, frame_buffer, x, y, text, font, colored) # draw_line(self, frame_buffer, x0, y0, x1, y1, colored) # draw_horizontal_line(self, frame_buffer, x, y, width, colored) # draw_vertical_line(self, frame_buffer, x, y, height, colored) # draw_rectangle(self, frame_buffer, x0, y0, x1, y1, colored): # draw_filled_rectangle(self, frame_buffer, x0, y0, x1, y1, colored): # draw_circle(self, frame_buffer, x, y, radius, colored): # draw_filled_circle(self, frame_buffer, x, y, radius, colored): # * 2.Change: # get_frame_buffer -> getbuffer # display_frame -> display # * 3.How to use # epd = epd1in54b.EPD() # epd.init() # image = Image.new('1', (epd1in54b.EPD_WIDTH, epd1in54b.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 import Image import RPi.GPIO as GPIO # Display resolution EPD_WIDTH = 200 EPD_HEIGHT = 200 # EPD1IN54B commands PANEL_SETTING = 0x00 POWER_SETTING = 0x01 POWER_OFF = 0x02 POWER_OFF_SEQUENCE_SETTING = 0x03 POWER_ON = 0x04 POWER_ON_MEASURE = 0x05 BOOSTER_SOFT_START = 0x06 DEEP_SLEEP = 0x07 DATA_START_TRANSMISSION_1 = 0x10 DATA_STOP = 0x11 DISPLAY_REFRESH = 0x12 DATA_START_TRANSMISSION_2 = 0x13 PLL_CONTROL = 0x30 TEMPERATURE_SENSOR_COMMAND = 0x40 TEMPERATURE_SENSOR_CALIBRATION = 0x41 TEMPERATURE_SENSOR_WRITE = 0x42 TEMPERATURE_SENSOR_READ = 0x43 VCOM_AND_DATA_INTERVAL_SETTING = 0x50 LOW_POWER_DETECTION = 0x51 TCON_SETTING = 0x60 TCON_RESOLUTION = 0x61 SOURCE_AND_GATE_START_SETTING = 0x62 GET_STATUS = 0x71 AUTO_MEASURE_VCOM = 0x80 VCOM_VALUE = 0x81 VCM_DC_SETTING_REGISTER = 0x82 PROGRAM_MODE = 0xA0 ACTIVE_PROGRAM = 0xA1 READ_OTP_DATA = 0xA2 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_vcom0 = [ 0x0E, 0x14, 0x01, 0x0A, 0x06, 0x04, 0x0A, 0x0A, 0x0F, 0x03, 0x03, 0x0C, 0x06, 0x0A, 0x00 ] lut_w = [ 0x0E, 0x14, 0x01, 0x0A, 0x46, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x86, 0x0A, 0x04 ] lut_b = [ 0x0E, 0x14, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x4A, 0x04 ] lut_g1 = [ 0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04 ] lut_g2 = [ 0x8E, 0x94, 0x01, 0x8A, 0x06, 0x04, 0x8A, 0x4A, 0x0F, 0x83, 0x43, 0x0C, 0x06, 0x0A, 0x04 ] lut_vcom1 = [ 0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ] lut_red0 = [ 0x83, 0x5D, 0x01, 0x81, 0x48, 0x23, 0x77, 0x77, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ] lut_red1 = [ 0x03, 0x1D, 0x01, 0x01, 0x08, 0x23, 0x37, 0x37, 0x01, 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) == 0): # 0: idle, 1: busy epdconfig.delay_ms(100) def set_lut_bw(self): self.send_command(0x20) # vcom for count in range(0, 15): self.send_data(self.lut_vcom0[count]) self.send_command(0x21) # ww -- for count in range(0, 15): self.send_data(self.lut_w[count]) self.send_command(0x22) # bw r for count in range(0, 15): self.send_data(self.lut_b[count]) self.send_command(0x23) # wb w for count in range(0, 15): self.send_data(self.lut_g1[count]) self.send_command(0x24) # bb b for count in range(0, 15): self.send_data(self.lut_g2[count]) def set_lut_red(self): self.send_command(0x25) for count in range(0, 15): self.send_data(self.lut_vcom1[count]) self.send_command(0x26) for count in range(0, 15): self.send_data(self.lut_red0[count]) self.send_command(0x27) for count in range(0, 15): self.send_data(self.lut_red1[count]) def init(self): if (epdconfig.module_init() != 0): return -1 # EPD hardware init start self.reset() self.send_command(POWER_SETTING) self.send_data(0x07) self.send_data(0x00) self.send_data(0x08) self.send_data(0x00) self.send_command(BOOSTER_SOFT_START) self.send_data(0x07) self.send_data(0x07) self.send_data(0x07) self.send_command(POWER_ON) self.wait_until_idle() self.send_command(PANEL_SETTING) self.send_data(0xCF) self.send_command(VCOM_AND_DATA_INTERVAL_SETTING) self.send_data(0x17) self.send_command(PLL_CONTROL) self.send_data(0x39) self.send_command(TCON_RESOLUTION) self.send_data(0xC8) self.send_data(0x00) self.send_data(0xC8) self.send_command(VCM_DC_SETTING_REGISTER) self.send_data(0x0E) self.set_lut_bw() self.set_lut_red() return 0 def getbuffer(self, image): buf = [0xFF] * (self.width * self.height / 8) # Set buffer to value of Python Imaging Library image. # Image must be in mode 1. image_monocolor = image.convert('1') imwidth, imheight = image_monocolor.size if imwidth != self.width or imheight != self.height: raise ValueError('Image must be same dimensions as display \ ({0}x{1}).' .format(self.width, self.height)) pixels = image_monocolor.load() for y in range(self.height): for x in range(self.width): # 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)) return buf def display(self, blackimage, redimage): if (blackimage != None): self.send_command(DATA_START_TRANSMISSION_1) for i in range(0, self.width * self.height / 8): temp = 0x00 for bit in range(0, 4): if (blackimage[i] & (0x80 >> bit) != 0): temp |= 0xC0 >> (bit * 2) self.send_data(temp) temp = 0x00 for bit in range(4, 8): if (blackimage[i] & (0x80 >> bit) != 0): temp |= 0xC0 >> ((bit - 4) * 2) self.send_data(temp) if (redimage != None): self.send_command(DATA_START_TRANSMISSION_2) for i in range(0, self.width * self.height / 8): self.send_data(redimage[i]) self.send_command(DISPLAY_REFRESH) self.wait_until_idle() ## # @brief: clear the frame memory with the specified color. # this won't update the display. ## def Clear(self): self.send_command(DATA_START_TRANSMISSION_1) for i in range(0, self.width * self.height / 8): self.send_data(0xFF) self.send_data(0xFF) self.send_command(DATA_START_TRANSMISSION_2) for i in range(0, self.width * self.height / 8): self.send_data(0xFF) self.send_command(DISPLAY_REFRESH) self.wait_until_idle() # after this, call epd.init() to awaken the module def sleep(self): self.send_command(VCOM_AND_DATA_INTERVAL_SETTING) self.send_data(0x17) self.send_command(VCM_DC_SETTING_REGISTER) #to solve Vcom drop self.send_data(0x00) self.send_command(POWER_SETTING) #power setting self.send_data(0x02) #gate switch to external self.send_data(0x00) self.send_data(0x00) self.send_data(0x00) self.wait_until_idle() self.send_command(POWER_OFF) #power off ### END OF FILE ###