Create Pico-ePaper-3.0-G.py

python/Pico-ePaper-3.0-G.py

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+# *****************************************************************************
+# * | File        :   Pico-ePaper-3.0-G.py
+# * | Author      :   
+# * | Function    :   Electronic paper driver
+# * | Info        :
+# *----------------
+# * | This version:   V1
+# * | Date        :   2026-06-07
+# # | 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       = 168
+EPD_HEIGHT      = 400
+
+RST_PIN         = 12
+DC_PIN          = 8
+CS_PIN          = 9
+BUSY_PIN        = 13
+
+class EPD_3in0_G:
+    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.spi = SPI(1)
+        self.spi.init(baudrate=4000_000)
+        self.dc_pin = Pin(DC_PIN, Pin.OUT)
+
+        self.width = EPD_WIDTH
+        self.height = EPD_HEIGHT
+        self.BLACK  = 0x00   #   00
+        self.WHITE  = 0x01   #   01
+        self.YELLOW = 0x02   #   10
+        self.RED    = 0x03   #   11
+        self.buffer = bytearray(self.height * self.width // 4)
+        self.image = framebuf.FrameBuffer(self.buffer, self.width, self.height, framebuf.GS2_HMSB)
+        self.init()
+
+    def delay_ms(self, delaytime):
+        utime.sleep(delaytime / 1000.0)
+
+    # Hardware reset
+    def reset(self):
+        self.reset_pin.value(1)
+        self.delay_ms(200)
+        self.reset_pin.value(0)
+        self.delay_ms(2)
+        self.reset_pin.value(1)
+        self.delay_ms(200)
+
+    def send_command(self, command):
+        self.dc_pin.value(0)
+        self.cs_pin.value(0)
+        self.spi.write(bytearray([command]))
+        self.cs_pin.value(1)
+
+    @micropython.viper
+    def send_data(self, data: ptr8):
+        self.dc_pin.value(1)
+        self.cs_pin.value(0)
+        self.spi.write(bytearray([data]))
+        self.cs_pin.value(1)
+
+    def ReadBusyH(self):
+        print("e-Paper busy H")
+        while self.busy_pin.value() == 0:      # 0: idle, 1: busy
+            self.delay_ms(5)
+        print("e-Paper busy H release")
+
+    def ReadBusyL(self):
+        print("e-Paper busy L")
+        while self.busy_pin.value() == 1:      # 0: busy, 1: idle
+            self.delay_ms(5)
+        print("e-Paper busy L release")
+
+    def TurnOnDisplay(self):
+        self.send_command(0x12) # DISPLAY_REFRESH
+        self.send_data(0x01)
+        self.ReadBusyH()
+
+        self.send_command(0x02) # POWER_OFF
+        self.send_data(0X00)
+        self.ReadBusyH()
+
+    def init(self):
+        # EPD hardware init start
+
+        self.reset()
+
+        self.send_command(0x66)
+        self.send_data(0x49)
+        self.send_data(0x55)
+        self.send_data(0x13)
+        self.send_data(0x5D)
+        self.send_data(0x05)
+        self.send_data(0x10)
+
+        self.send_command(0xB0)
+        self.send_data(0x00) # 1 boost
+
+        self.send_command(0x01)
+        self.send_data(0x0F)
+        self.send_data(0x00)
+
+        self.send_command(0x00)
+        self.send_data(0x4F)
+        self.send_data(0x6B)
+
+        self.send_command(0x06)
+        self.send_data(0xD7)
+        self.send_data(0xDE)
+        self.send_data(0x12)
+
+        self.send_command(0x61)
+        self.send_data(0x00)
+        self.send_data(0xA8)
+        self.send_data(0x01)
+        self.send_data(0x90)
+
+        self.send_command(0x50)
+        self.send_data(0x37)
+
+        self.send_command(0x60)
+        self.send_data(0x0C)
+        self.send_data(0x05)
+
+        self.send_command(0xE3)
+        self.send_data(0xFF)
+
+        self.send_command(0x84)
+        self.send_data(0x00)
+        return 0
+
+    @micropython.viper
+    def display(self, image: ptr8):
+        self.send_command(0x04)
+        self.ReadBusyH()
+
+        self.send_command(0x10)
+        for i in range(16800): # self.height * self.width // 4
+            self.send_data(((image[i] & 0x03) << 6 | (image[i] & 0x0c) << 2 | (image[i] & 0x30) >> 2 | (image[i] & 0xC0) >> 6))
+
+        self.TurnOnDisplay()
+
+    @micropython.viper
+    def _clear(self, color: int):
+        self.send_command(0x04)
+        self.ReadBusyH()
+
+        self.send_command(0x10)
+        for i in range(16800): # self.height * self.width // 4
+            self.send_data(color << 6 | color << 4 | color << 2 | color)
+
+        self.TurnOnDisplay()
+
+    def Clear(self, color=0x01):
+        self._clear(color)
+
+    def sleep(self):
+        self.send_command(0x02) # POWER_OFF
+        self.send_data(0x00)
+
+        self.send_command(0x07) # DEEP_SLEEP
+        self.send_data(0XA5)
+
+        self.delay_ms(2000)
+        self.reset_pin.value(0)
+
+if __name__=='__main__':
+    epd = EPD_3in0_G()
+    epd.Clear()
+    epd.delay_ms(2000)
+
+    epd.image.fill(epd.WHITE)
+    epd.image.text("Waveshare", 5, 10, epd.BLACK)
+    epd.image.text("Pico_ePaper-3.0-G", 5, 40, epd.BLACK)
+    epd.image.text("Raspberry Pi Pico", 5, 70, epd.BLACK)
+    epd.image.rect(10, 90, 40, 80, epd.BLACK)
+    epd.image.fill_rect(60, 90, 40, 80, epd.RED)
+    epd.image.fill_rect(110, 90, 40, 80, epd.YELLOW)
+    epd.init()
+    epd.display(epd.buffer)
+    epd.delay_ms(5000)
+
+    epd.init()
+    epd.Clear()
+    epd.sleep()