204 lines
6.2 KiB
Python
204 lines
6.2 KiB
Python
# *****************************************************************************
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# * | File : Pico_ePaper-5.83.py
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# * | Author : Waveshare team
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# * | Function : Electronic paper driver
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# * | Info :
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# *----------------
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# * | This version: V1.0
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# * | Date : 2021-05-27
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# # | Info : python demo
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# -----------------------------------------------------------------------------
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documnetation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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#
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from machine import Pin, SPI
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import framebuf
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import utime
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# Display resolution
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EPD_WIDTH = 648
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EPD_HEIGHT = 480
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RST_PIN = 12
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DC_PIN = 8
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CS_PIN = 9
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BUSY_PIN = 13
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class EPD_5in83(framebuf.FrameBuffer):
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def __init__(self):
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self.reset_pin = Pin(RST_PIN, Pin.OUT)
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self.busy_pin = Pin(BUSY_PIN, Pin.IN, Pin.PULL_UP)
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self.cs_pin = Pin(CS_PIN, Pin.OUT)
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self.width = EPD_WIDTH
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self.height = EPD_HEIGHT
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self.spi = SPI(1)
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self.spi.init(baudrate=4000_000)
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self.dc_pin = Pin(DC_PIN, Pin.OUT)
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self.buffer = bytearray(self.height * self.width // 8)
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super().__init__(self.buffer, self.width, self.height, framebuf.MONO_HLSB)
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self.init()
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def digital_write(self, pin, value):
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pin.value(value)
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def digital_read(self, pin):
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return pin.value()
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def delay_ms(self, delaytime):
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utime.sleep(delaytime / 1000.0)
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def spi_writebyte(self, data):
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self.spi.write(bytearray(data))
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def module_exit(self):
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self.digital_write(self.reset_pin, 0)
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# Hardware reset
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def reset(self):
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(50)
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self.digital_write(self.reset_pin, 0)
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self.delay_ms(2)
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self.digital_write(self.reset_pin, 1)
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self.delay_ms(50)
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def send_command(self, command):
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self.digital_write(self.dc_pin, 0)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([command])
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self.digital_write(self.cs_pin, 1)
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def send_data(self, data):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte([data])
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self.digital_write(self.cs_pin, 1)
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def send_data1(self, data):
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self.digital_write(self.dc_pin, 1)
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self.digital_write(self.cs_pin, 0)
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self.spi_writebyte(data)
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self.digital_write(self.cs_pin, 1)
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def ReadBusy(self):
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print("e-Paper busy")
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while(self.digital_read(self.busy_pin) == 0): # 1: idle, 0: busy
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self.delay_ms(10)
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print("e-Paper busy release")
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def TurnOnDisplay(self):
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self.send_command(0x12)
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self.delay_ms(100)
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self.ReadBusy()
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def init(self):
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# EPD hardware init start
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self.reset()
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self.send_command(0x01) #POWER SETTING
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self.send_data (0x07)
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self.send_data (0x07) #VGH=20V,VGL=-20V
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self.send_data (0x3f) #VDH=15V
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self.send_data (0x3f) #VDL=-15V
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self.send_command(0x04) #POWER ON
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self.delay_ms(100)
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self.ReadBusy() #waiting for the electronic paper IC to release the idle signal
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self.send_command(0X00) #PANNEL SETTING
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self.send_data(0x1F) #KW-3f KWR-2F BWROTP 0f BWOTP 1f
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self.send_command(0x61) #tres
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self.send_data (0x02) #source 648
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self.send_data (0x88)
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self.send_data (0x01) #gate 480
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self.send_data (0xE0)
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self.send_command(0X15)
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self.send_data(0x00)
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self.send_command(0X50) #VCOM AND DATA INTERVAL SETTING
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self.send_data(0x10)
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self.send_data(0x07)
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self.send_command(0X60) #TCON SETTING
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self.send_data(0x22)
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# EPD hardware init end
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return 0
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def display(self, image):
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if (image == None):
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return
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self.send_command(0x13) # WRITE_RAM
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self.send_data1(image)
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self.TurnOnDisplay()
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def Clear(self, color):
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self.send_command(0x13) # WRITE_RAM
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for i in range(0, int(self.width / 8)):
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self.send_data1([color] * self.height)
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self.TurnOnDisplay()
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def sleep(self):
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self.send_command(0x02) # DEEP_SLEEP_MODE
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self.ReadBusy()
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self.send_command(0x07)
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self.send_data(0xa5)
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self.delay_ms(2000)
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self.module_exit()
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if __name__=='__main__':
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epd = EPD_5in83()
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epd.Clear(0x00)
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epd.fill(0x00)
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epd.text("Waveshare", 5, 10, 0xff)
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epd.text("Pico_ePaper-5.83", 5, 40, 0xff)
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epd.text("Raspberry Pico", 5, 70, 0xff)
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epd.display(epd.buffer)
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epd.delay_ms(2000)
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epd.vline(10, 90, 60, 0xff)
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epd.vline(120, 90, 60, 0xff)
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epd.hline(10, 90, 110, 0xff)
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epd.hline(10, 150, 110, 0xff)
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epd.line(10, 90, 120, 150, 0xff)
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epd.line(120, 90, 10, 150, 0xff)
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epd.display(epd.buffer)
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epd.delay_ms(2000)
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epd.rect(10, 180, 50, 80, 0xff)
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epd.fill_rect(70, 180, 50, 80, 0xff)
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epd.display(epd.buffer)
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epd.delay_ms(2000)
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epd.fill_rect(200, 100, 400, 100, 0xff)
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epd.display(epd.buffer)
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epd.delay_ms(2000)
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epd.init()
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epd.Clear(0x00)
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epd.delay_ms(2000)
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print("sleep")
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epd.sleep() |