Merge branch 'master' into jetson-spidev

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13.py

@@ -30,7 +30,6 @@
 
 import logging
 from . import epdconfig
-import numpy as np
 
 # Display resolution
 EPD_WIDTH       = 122

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py

@@ -30,7 +30,6 @@
 
 import logging
 from . import epdconfig
-import numpy as np
 
 # Display resolution
 EPD_WIDTH       = 122

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13_V3.py

@@ -30,7 +30,6 @@
 
 import logging
 from . import epdconfig
-import numpy as np
 
 # Display resolution
 EPD_WIDTH       = 122

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13b_V4.py

@@ -0,0 +1,208 @@
+# *****************************************************************************
+# * | File        :	  epd2in13b_V4.py
+# * | Author      :   Waveshare team
+# * | Function    :   Electronic paper driver
+# * | Info        :
+# *----------------
+# * | This version:   V1.0
+# * | Date        :   2022-04-21
+# # | 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       = 122
+EPD_HEIGHT      = 250
+
+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
+
+    # 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)   
+
+    # send 1 byte command
+    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)
+    
+    # send 1 byte data
+    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)
+        
+    # send a lot of data   
+    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)
+        
+    # judge e-Paper whether is busy
+    def busy(self):
+        logger.debug("e-Paper busy")
+        while(epdconfig.digital_read(self.busy_pin) != 0): 
+            epdconfig.delay_ms(10)
+        logger.debug("e-Paper busy release")
+
+    # set the display window
+    def set_windows(self, xstart, ystart, xend, yend):
+        self.send_command(0x44) # SET_RAM_X_ADDRESS_START_END_POSITION
+        self.send_data((xstart>>3) & 0xff)
+        self.send_data((xend>>3) & 0xff)
+        
+        self.send_command(0x45) # SET_RAM_Y_ADDRESS_START_END_POSITION
+        self.send_data(ystart & 0xff)
+        self.send_data((ystart >> 8) & 0xff)
+        self.send_data(yend & 0xff)
+        self.send_data((yend >> 8) & 0xff)
+        
+    # set the display cursor(origin)
+    def set_cursor(self, xstart, ystart):
+        self.send_command(0x4E) # SET_RAM_X_ADDRESS_COUNTER
+        self.send_data(xstart & 0xff)
+
+        self.send_command(0x4F) # SET_RAM_Y_ADDRESS_COUNTER
+        self.send_data(ystart & 0xff)
+        self.send_data((ystart >> 8) & 0xff)
+
+    # initialize 
+    def init(self):
+        if (epdconfig.module_init() != 0):
+            return -1
+            
+        self.reset()
+
+        self.busy()
+        self.send_command(0x12)  # SWRESET
+        self.busy()   
+
+        self.send_command(0x01) # Driver output control      
+        self.send_data(0xf9)
+        self.send_data(0x00)
+        self.send_data(0x00)
+
+        self.send_command(0x11) # data entry mode       
+        self.send_data(0x03)
+
+        self.set_windows(0, 0, self.width - 1, self.height - 1)
+        self.set_cursor(0, 0)
+
+        self.send_command(0x3C) # BorderWavefrom
+        self.send_data(0x05)	
+
+        self.send_command(0x18) # Read built-in temperature sensor
+        self.send_data(0x80)	
+
+        self.send_command(0x21) # Display update control
+        self.send_data(0x80)	
+        self.send_data(0x80)
+
+        self.busy()
+        
+        return 0
+
+    # turn on display
+    def ondisplay(self):
+        self.send_command(0x20)
+        self.busy()
+
+    # image converted to bytearray
+    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'))
+        return buf
+
+    # display image
+    def display(self, imageblack, imagered):
+        if self.width%8 == 0:
+            linewidth = int(self.width/8)
+        else:
+            linewidth = int(self.width/8) + 1
+    
+        self.send_command(0x24)
+        self.send_data2(imageblack)
+        
+        self.send_command(0x26)
+        self.send_data2(imagered)
+        
+        self.ondisplay()
+        
+    # display white image
+    def clear(self):
+        if self.width%8 == 0:
+            linewidth = int(self.width/8)
+        else:
+            linewidth = int(self.width/8) + 1
+            
+        buf = [0xff] * (int(linewidth * self.height))
+            
+        self.send_command(0x24)
+        self.send_data2(buf)
+        
+        self.send_command(0x26)
+        self.send_data2(buf)
+        
+        self.ondisplay()
+
+    # Compatible with older version functions
+    def Clear(self):
+        self.clear()
+
+    # sleep
+    def sleep(self):
+        self.send_command(0x10) # DEEP_SLEEP
+        self.send_data(0x01) # check code
+        
+        epdconfig.delay_ms(2000)
+        epdconfig.module_exit()
+### END OF FILE ###
+