From 6be352ee6db0c4c7fc89ba562b64904a7d962645 Mon Sep 17 00:00:00 2001 From: missionfloyd Date: Sun, 23 Apr 2023 22:12:57 -0600 Subject: [PATCH] Create epd7in5_V2_fast.py --- .../lib/waveshare_epd/epd7in5_V2_fast.py | 278 ++++++++++++++++++ 1 file changed, 278 insertions(+) create mode 100644 RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2_fast.py diff --git a/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2_fast.py b/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2_fast.py new file mode 100644 index 0000000..e1e163b --- /dev/null +++ b/RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd7in5_V2_fast.py @@ -0,0 +1,278 @@ +# ***************************************************************************** +# * | File : epd7in5.py +# * | Author : Waveshare team +# * | Function : Electronic paper driver +# * | Info : +# *---------------- +# * | This version: V4.0 +# * | Date : 2019-06-20 +# # | 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. +# + + +import logging +from . import epdconfig + +# Display resolution +EPD_WIDTH = 800 +EPD_HEIGHT = 480 + +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 + + Voltage_Frame_7IN5_V2 = [ + 0x6, 0x3F, 0x3F, 0x11, 0x24, 0x7, 0x17, + ] + + LUT_VCOM_7IN5_V2 = [ + 0x0, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0xF, 0x1, 0xF, 0x1, 0x2, + 0x0, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + ] + + LUT_WW_7IN5_V2 = [ + 0x10, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, + 0x20, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + ] + + LUT_BW_7IN5_V2 = [ + 0x10, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, + 0x20, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + ] + + LUT_WB_7IN5_V2 = [ + 0x80, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, + 0x40, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + ] + + LUT_BB_7IN5_V2 = [ + 0x80, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x84, 0xF, 0x1, 0xF, 0x1, 0x2, + 0x40, 0xF, 0xF, 0x0, 0x0, 0x1, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, + ] + + # Hardware reset + def reset(self): + epdconfig.digital_write(self.reset_pin, 1) + epdconfig.delay_ms(20) + epdconfig.digital_write(self.reset_pin, 0) + epdconfig.delay_ms(2) + epdconfig.digital_write(self.reset_pin, 1) + epdconfig.delay_ms(20) + + 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 send_data2(self, data): + epdconfig.digital_write(self.dc_pin, 1) + epdconfig.digital_write(self.cs_pin, 0) + epdconfig.spi_writebyte2(data) + epdconfig.digital_write(self.cs_pin, 1) + + def ReadBusy(self): + logger.debug("e-Paper busy") + self.send_command(0x71) + busy = epdconfig.digital_read(self.busy_pin) + while(busy == 0): + self.send_command(0x71) + busy = epdconfig.digital_read(self.busy_pin) + epdconfig.delay_ms(20) + logger.debug("e-Paper busy release") + + def SetLut(self, lut_vcom, lut_ww, lut_bw, lut_wb, lut_bb): + self.send_command(0x20) + for count in range(0, 42): + self.send_data(lut_vcom[count]) + + self.send_command(0x21) + for count in range(0, 42): + self.send_data(lut_ww[count]) + + self.send_command(0x22) + for count in range(0, 42): + self.send_data(lut_bw[count]) + + self.send_command(0x23) + for count in range(0, 42): + self.send_data(lut_wb[count]) + + self.send_command(0x24) + for count in range(0, 42): + self.send_data(lut_bb[count]) + + def init(self): + if (epdconfig.module_init() != 0): + return -1 + # EPD hardware init start + self.reset() + + # self.send_command(0x06) # btst + # self.send_data(0x17) + # self.send_data(0x17) + # self.send_data(0x28) # If an exception is displayed, try using 0x38 + # self.send_data(0x17) + + # self.send_command(0x01) #POWER SETTING + # self.send_data(0x07) + # self.send_data(0x07) #VGH=20V,VGL=-20V + # self.send_data(0x3f) #VDH=15V + # self.send_data(0x3f) #VDL=-15V + + self.send_command(0x01) # power setting + self.send_data(0x17) # 1-0=11: internal power + self.send_data(self.Voltage_Frame_7IN5_V2[6]) # VGH&VGL + self.send_data(self.Voltage_Frame_7IN5_V2[1]) # VSH + self.send_data(self.Voltage_Frame_7IN5_V2[2]) # VSL + self.send_data(self.Voltage_Frame_7IN5_V2[3]) # VSHR + + self.send_command(0x82) # VCOM DC Setting + self.send_data(self.Voltage_Frame_7IN5_V2[4]) # VCOM + + self.send_command(0x06) # Booster Setting + self.send_data(0x27) + self.send_data(0x27) + self.send_data(0x2F) + self.send_data(0x17) + + self.send_command(0x30) # OSC Setting + self.send_data(self.Voltage_Frame_7IN5_V2[0]) # 3C=50Hz, 3A=100HZ + + self.send_command(0x04) # POWER ON + epdconfig.delay_ms(100) + self.ReadBusy() + + self.send_command(0X00) # PANNEL SETTING + self.send_data(0x3F) # KW-3f KWR-2F BWROTP-0f BWOTP-1f + + self.send_command(0x61) # tres + self.send_data(0x03) # source 800 + self.send_data(0x20) + self.send_data(0x01) # gate 480 + self.send_data(0xE0) + + self.send_command(0X15) + self.send_data(0x00) + + self.send_command(0X50) # VCOM AND DATA INTERVAL SETTING + self.send_data(0x10) + self.send_data(0x07) + + self.send_command(0X60) # TCON SETTING + self.send_data(0x22) + + self.send_command(0x65) # Resolution setting + self.send_data(0x00) + self.send_data(0x00) # 800*480 + self.send_data(0x00) + self.send_data(0x00) + + self.SetLut(self.LUT_VCOM_7IN5_V2, self.LUT_WW_7IN5_V2, self.LUT_BW_7IN5_V2, self.LUT_WB_7IN5_V2, self.LUT_BB_7IN5_V2) + # EPD hardware init end + return 0 + + def getbuffer(self, image): + img = image + imwidth, imheight = img.size + if(imwidth == self.width and imheight == self.height): + img = img.convert('1') + elif(imwidth == self.height and imheight == self.width): + # image has correct dimensions, but needs to be rotated + img = img.rotate(90, expand=True).convert('1') + else: + logger.warning("Wrong image dimensions: must be " + str(self.width) + "x" + str(self.height)) + # return a blank buffer + return [0x00] * (int(self.width/8) * self.height) + + buf = bytearray(img.tobytes('raw')) + # The bytes need to be inverted, because in the PIL world 0=black and 1=white, but + # in the e-paper world 0=white and 1=black. + for i in range(len(buf)): + buf[i] ^= 0xFF + return buf + + def display(self, image): + self.send_command(0x13) + self.send_data2(image) + + self.send_command(0x12) + epdconfig.delay_ms(100) + self.ReadBusy() + + def Clear(self): + buf = [0x00] * (int(self.width/8) * self.height) + self.send_command(0x10) + self.send_data2(buf) + self.send_command(0x13) + self.send_data2(buf) + self.send_command(0x12) + epdconfig.delay_ms(100) + self.ReadBusy() + + def sleep(self): + self.send_command(0x02) # POWER_OFF + self.ReadBusy() + + self.send_command(0x07) # DEEP_SLEEP + self.send_data(0XA5) + + epdconfig.delay_ms(2000) + epdconfig.module_exit() +### END OF FILE ###