add 1.02EPD + 7.5(a,b,c) V2 + 2.7(4 gray)

Arduino UNO/epd7in5_V2/epd7in5/readme.md

@@ -0,0 +1,20 @@
+# GDEW075T8 7.5" e-paper display library for Arduino
+GDEW075T8 7.5" e-paper display library for Arduino
+## Hardware connection (e-Paper --> Arduino)
+    3.3V --> 3V3
+    GND  --> GND
+    DIN  --> D11
+    CLK  --> D13
+    CS   --> D10
+    DC   --> D9
+    RST  --> D8
+    BUSY --> D7
+## Expected result
+1.  Copy the libraries file of Arduino demo code to the libraries folder 
+    (C:\users\username\documents\arduino\libraries by default. You can also 
+    specify the location on 
+    Arduino IDE --> File --> Preferences --> Sketchbook location).
+2.  File > Examples > epd7in5 > epd7in5-demo
+3.  Upload the project.
+4.  The e-Paper will display images.
+