Closes #9 Update readme, provide images, pcb and 3d qr adapter model

Author: sabifa

Pro Mini V2 3.3V/3D model/Fanatec QR Adapter Pro Mini.stl

@@ -0,0 +1,31 @@
+# Pro Mini V2 3.3V 16 MHz
+What you'll need:
+* Fanatec QR
+* [Pro Mini V2](https://www.ebay.com/itm/Enhancement-V2-Pro-Mini-328-16Mhz-3-3V-5V-adjustable-Arduino-Compatible-40Pins/324180291509?hash=item4b7aa6afb5:g:~UgAAOxymiVQ~6z~)
+* FTDI Adapter USB to TTL Programmer
+* PCB [can be found here](eagle%20pcb%20files/Gerber.zip)
+  * upload `Gerber.zip` to a PCB service like JLCPCB and order them
+* 1x Diode
+* 6x M5x20mm countersunk screws (like DIN 7991)
+
+optional:
+* 8 pin JST connector
+* 2x M2.5 screws to secure the pcb to the 3D model
+
+# How To
+* Program the Pro Mini
+* You can either solder the wires coming from the Fanatec QR directly to the PCB (recommended) or use an 8 pin JST connector so you can plug it in. <br>
+  * I had connection problems using the JST connector as the cable did not stick in correctly all the time, so I just soldered the wires and everything worked fine afterwards.
+* Bend the cable so that it fits into the QR housing like so:
+![Bent cable](photos/02.JPG)
+![Bent cable 2](photos/01.JPG)
+* Take the 3D printed QR adapter, put two M2.5 screws into each hole to secure the pcb
+* Make sure that the cable is not squeezed and use the six M5 screws to mount it to the Fanatec QR
+* Done!
+![Done](photos/03.JPG)
+![Done2](photos/04.JPG)
+
+# Downsides
+* In some rare cases my base reconnects if I connect the emulator to it. Nothing wild, just let it recalibrate and you're ready to race 
+* The base thinks that the funky push button is constantly pushed. I don't really know why this happens so I just disabled the code which makes the button functionality work.
+You can also find two pins on the PCB, 5V and GND, to power another button controller like an ESP32-BLE.

Pro Mini V2 3.3V/README.md

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+[Eagle]
+Version="09 03 00"
+Platform="Windows"
+Globals="Globals"
+Desktop="Desktop"
+
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Pro Mini V2 3.3V/eagle pcb files/Gerber.zip

@@ -1,5 +1,11 @@
 # Arduino_Fanatec_Wheel
 A do-it-yourself steering wheel to Fanatec's wheel base.<br/><br/>
+**29.10.2020** Run the project on a 3.3V Arduino without a logic shifter<br/>
+![Assembled Pro Mini with PCB and QR Adapter](Pro%20Mini%20V2%203.3V/photos/03.JPG)
+[more info here](Pro%20Mini%20V2%203.3V/README.md)
+
+*You can run the code on a 3.3V Arduino without the need for a logic shifter. This allows for a small enough pcb and 3D model to hold it, which you can then mount onto your custom wheel. Because the model is only 16mm high you won't have any space issues.
+________________
 **28.04.2020 Coronavirus update:** Version 1 is out!<br/>
 ![Steering wheel assembled](https://raw.githubusercontent.com/lshachar/Arduino_Fanatec_Wheel/master/Steering%20Wheel%20Photos/1%20assambled%202020-04-09%2008.11.24.jpg)
 [check out more photos here](https://github.com/lshachar/Arduino_Fanatec_Wheel/tree/master/Steering%20Wheel%20Photos)
@@ -34,7 +40,7 @@ Also, [Alevale found where to buy the connector](https://github.com/darknao/btCl
 ### Several options:
 - Use a 5V arduino with a logic level shifter. (recommended, this is what I use. [(here are The schematics)](https://github.com/lshachar/Arduino_Fanatec_Wheel/blob/master/schamtics%20arduino%20nano-level%20shifter-fanatec%20round%20plug.png)
 - Use a 5V arduino **without** a logic shifter (can be risky to your precious wheelbase)
-- Use a 3.3V arduino (I haven't tried it. They run on 8 MHZ instead of 16 MHZ for the 5V arduinos, but I'm pretty sure 8MHZ should be fast enough.)
+- Use a 3.3V arduino (You will need an Arduino Pro Mini V2 which runs 3.3V at 16 MHz, as 8 MHz is not fast enough. For a more detailed guide [please read this](Pro%20Mini%20V2%203.3V/README.md))
 
 Code was tested on arduino Uno and Nano, and works fine. However, they both output 5V and the SPI communication on the wheelbase
 is using 3.3V.