copied from https://github.com/daniilprohorov/pwnagotchi.git to add waveshare27Partial support to pwnagotchi. I don't know how to do it the right way by applying their commits to my tree.

pwnagotchi/ui/hw/waveshare27inchPartial.py

@@ -0,0 +1,77 @@
+import logging
+
+import pwnagotchi.ui.fonts as fonts
+from pwnagotchi.ui.hw.base import DisplayImpl
+from PIL import Image
+
+
+class Waveshare27inchPartial(DisplayImpl):
+    def __init__(self, config):
+        super(Waveshare27inchPartial, self).__init__(config, 'waveshare27inchPartial')
+        self._display = None
+        self.counter = 0
+
+    def layout(self):
+        fonts.setup(10, 9, 10, 35, 25, 9)
+        self._layout['width'] = 264
+        self._layout['height'] = 176
+        self._layout['face'] = (66, 27)
+        self._layout['name'] = (5, 73)
+        self._layout['channel'] = (0, 0)
+        self._layout['aps'] = (28, 0)
+        self._layout['uptime'] = (199, 0)
+        self._layout['line1'] = [0, 14, 264, 14]
+        self._layout['line2'] = [0, 162, 264, 162]
+        self._layout['friend_face'] = (0, 146)
+        self._layout['friend_name'] = (40, 146)
+        self._layout['shakes'] = (0, 163)
+        self._layout['mode'] = (239, 163)
+        self._layout['status'] = {
+            'pos': (38, 93),
+            'font': fonts.status_font(fonts.Medium),
+            'max': 40
+        }
+        return self._layout
+
+
+
+    def initialize(self):
+        logging.info("initializing waveshare v1 2.7 inch display")
+        from rpi_epd2in7.epd import EPD
+        self._display = EPD(fast_refresh=True)
+        self._display.init()
+
+
+    def render(self, canvas):
+        # have to rotate, because lib work with portrait mode only
+        # also I have 180 degrees screen rotation inn config, not tested with other valuesjk:w
+        rotated = canvas.rotate(90, expand=True)
+        if self.counter == 0:
+            self._display.smart_update(rotated)
+
+        # print invert
+        # print true image
+        elif self.counter % 35 == 0:
+            inverted_image = rotated.point(lambda x: 255-x)
+            self._display.display_partial_frame(inverted_image, 0, 0, 264, 176, fast=True)
+            self._display.display_partial_frame(rotated, 0, 0, 264, 176, fast=True)
+        
+        # partial update full screen
+        elif self.counter % 7 == 0:
+            # face + text under
+            #self._display.display_partial_frame(rotated, 35, 35, 190, 115, fast=True)
+            # full screen partial update
+            self._display.display_partial_frame(rotated, 0, 0, 264, 176, fast=True)
+        
+        # partial update face 
+        self._display.display_partial_frame(rotated, 110, 84, 92, 40, fast=True)
+
+        if self.counter >= 100:
+            self.counter = 0
+        else:
+            self.counter += 1
+
+
+    def clear(self):
+        pass
+