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initial commit, display with commands working

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aeroreyna
2026-01-03 20:37:58 -05:00
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Pico_ePaper_Code/python/Pico-ePaper-7.5-B_old.py Normal file
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# *****************************************************************************
# * | File : Pico_ePaper-7.5-B.py
# * | Author : Waveshare team
# * | Function : Electronic paper driver
# * | Info :
# *----------------
# * | This version: V1.0
# * | Date : 2021-05-27
# # | 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 = 800
EPD_HEIGHT = 480
RST_PIN = 12
DC_PIN = 8
CS_PIN = 9
BUSY_PIN = 13
class EPD_7in5_B:
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.spi = SPI(1)
self.spi.init(baudrate=4000_000)
self.dc_pin = Pin(DC_PIN, Pin.OUT)
self.buffer_black = bytearray(self.height * self.width // 8)
self.buffer_red = bytearray(self.height * self.width // 8)
self.imageblack = framebuf.FrameBuffer(self.buffer_black, self.width, self.height, framebuf.MONO_HLSB)
self.imagered = framebuf.FrameBuffer(self.buffer_red, self.width, self.height, framebuf.MONO_HLSB)
self.init()
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 send_data1(self, buf):
self.digital_write(self.dc_pin, 1)
self.digital_write(self.cs_pin, 0)
self.spi.write(bytearray(buf))
self.digital_write(self.cs_pin, 1)
def WaitUntilIdle(self):
print("e-Paper busy")
while(self.digital_read(self.busy_pin) == 0): # Wait until the busy_pin goes LOW
self.delay_ms(20)
self.delay_ms(20)
print("e-Paper busy release")
def TurnOnDisplay(self):
self.send_command(0x12) # DISPLAY REFRESH
self.delay_ms(100) #!!!The delay here is necessary, 200uS at least!!!
self.WaitUntilIdle()
def init(self):
# 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(0x04) # POWER ON
self.delay_ms(100)
self.WaitUntilIdle()
self.send_command(0X00) # PANNEL SETTING
self.send_data(0x0F) # 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(0x11)
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)
return 0;
def 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 i in range(0, wide):
self.send_data1([0xff] * high)
self.send_command(0x13)
for i in range(0, wide):
self.send_data1([0x00] * high)
self.TurnOnDisplay()
def ClearRed(self):
high = self.height
if( self.width % 8 == 0) :
wide = self.width // 8
else :
wide = self.width // 8 + 1
self.send_command(0x10)
for i in range(0, wide):
self.send_data1([0xff] * high)
self.send_command(0x13)
for i in range(0, wide):
self.send_data1([0xff] * high)
self.TurnOnDisplay()
def ClearBlack(self):
high = self.height
if( self.width % 8 == 0) :
wide = self.width // 8
else :
wide = self.width // 8 + 1
self.send_command(0x10)
for i in range(0, wide):
self.send_data1([0x00] * high)
self.send_command(0x13)
for i in range(0, wide):
self.send_data1([0x00] * high)
self.TurnOnDisplay()
def display(self):
high = self.height
if( self.width % 8 == 0) :
wide = self.width // 8
else :
wide = self.width // 8 + 1
# send black data
self.send_command(0x10)
for i in range(0, wide):
self.send_data1(self.buffer_black[(i * high) : ((i+1) * high)])
# send red data
self.send_command(0x13)
for i in range(0, wide):
self.send_data1(self.buffer_red[(i * high) : ((i+1) * high)])
self.TurnOnDisplay()
def sleep(self):
self.send_command(0x02) # power off
self.WaitUntilIdle()
self.send_command(0x07) # deep sleep
self.send_data(0xa5)
if __name__=='__main__':
epd = EPD_7in5_B()
epd.Clear()
epd.imageblack.fill(0xff)
epd.imagered.fill(0x00)
epd.imageblack.text("Waveshare", 5, 10, 0x00)
epd.imagered.text("Pico_ePaper-7.5-B", 5, 40, 0xff)
epd.imageblack.text("Raspberry Pico", 5, 70, 0x00)
epd.display()
epd.delay_ms(5000)
epd.imageblack.vline(10, 90, 60, 0x00)
epd.imageblack.vline(120, 90, 60, 0x00)
epd.imagered.hline(10, 90, 110, 0xff)
epd.imagered.hline(10, 150, 110, 0xff)
epd.imagered.line(10, 90, 120, 150, 0xff)
epd.imagered.line(120, 90, 10, 150, 0xff)
epd.display()
epd.delay_ms(5000)
epd.imageblack.rect(10, 180, 50, 80, 0x00 )
epd.imageblack.fill_rect(70, 180, 50, 80,0x00 )
epd.imagered.rect(10, 300, 50, 80, 0xff )
epd.imagered.fill_rect(70, 300, 50, 80,0xff )
epd.display()
epd.delay_ms(5000)
for k in range(0, 3):
for j in range(0, 3):
for i in range(0, 5):
epd.imageblack.fill_rect(200+100+j*200, i*20+k*200, 100, 10, 0x00)
for i in range(0, 5):
epd.imagered.fill_rect(200+0+j*200, i*20+100+k*200, 100, 10, 0xff)
epd.display()
epd.delay_ms(5000)
epd.Clear()
epd.delay_ms(2000)
print("sleep")
epd.sleep()