Update readme to include the V2

README.md

@@ -40,22 +40,29 @@ epd.display_frame(&mut spi)?;
 
 | Device (with Link) | Colors | Flexible Display | Partial Refresh | Supported | Tested |
 | :---: | --- | :---: | :---: | :---: | :---: |
+| [7.5 Inch B/W V2 (A)](https://www.waveshare.com/product/7.5inch-e-paper-hat.htm) [[1](#1-75-inch-bw-v2-a)] | Black, White | ✕ | ✕ | ✔ | ✔ |
 | [7.5 Inch B/W (A)](https://www.waveshare.com/product/7.5inch-e-paper-hat.htm) | Black, White | ✕ | ✕ | ✔ | ✔ |
-| [4.2 Inch B/W (A)](https://www.waveshare.com/product/4.2inch-e-paper-module.htm) | Black, White | ✕ | Not officially [[1](#42-inch-e-ink-blackwhite)] | ✔ | ✔ |
+| [4.2 Inch B/W (A)](https://www.waveshare.com/product/4.2inch-e-paper-module.htm) | Black, White | ✕ | Not officially [[2](#2-42-inch-e-ink-blackwhite---partial-refresh)] | ✔ | ✔ |
 | [1.54 Inch B/W (A)](https://www.waveshare.com/1.54inch-e-Paper-Module.htm) | Black, White | ✕ | ✔ | ✔ | ✔ |
 | [2.13 Inch B/W (A)](https://www.waveshare.com/product/2.13inch-e-paper-hat.htm) | Black, White | ✕ | ✔ |  |  |
-| [2.9 Inch B/W (A)](https://www.waveshare.com/product/2.9inch-e-paper-module.htm) | Black, White | ✕ | ✔ | ✔ | ✔ [[2](#2-29-inch-e-ink-blackwhite---tests)] |
+| [2.9 Inch B/W (A)](https://www.waveshare.com/product/2.9inch-e-paper-module.htm) | Black, White | ✕ | ✔ | ✔ | ✔ [[3](#3-29-inch-e-ink-blackwhite---tests)] |
 | [1.54 Inch B/W/R (B)](https://www.waveshare.com/product/modules/oleds-lcds/e-paper/1.54inch-e-paper-module-b.htm) | Black, White, Red | ✕ | ✕ | ✔ | ✔ |
 
+### [1]: 7.5 Inch B/W V2 (A)
 
-### [1]: 4.2 Inch E-Ink Black/White - Partial Refresh
+Since November 2019 Waveshare sells their updated version of these displays.
+They should have a "V2" marking sticker on the backside of the panel.
+
+Use `epd7in5_v2` instead of `epd7in5`, because the protocol changed.
+
+### [2]: 4.2 Inch E-Ink Black/White - Partial Refresh
 
 Out of the Box the original driver from Waveshare only supports full updates.
 
 That means: Be careful with the quick refresh updates: <br>
 It's possible with this driver but might lead to ghosting / burn-in effects therefore it's hidden behind a feature.
 
-### [2]: 2.9 Inch E-Ink Black/White - Tests
+### [3]: 2.9 Inch E-Ink Black/White - Tests
 
 Since my 2.9 Inch Display has some blurring issues I am not absolutly sure if everything was working correctly as it should :-)