Update README.md

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@ -62,13 +62,15 @@ void print_Msg(long unsigned int message) {
}
```
Before uploading the code to your Arduino you need to select your hardware version in options.h
Before uploading the code to your Arduino you need to select your hardware version in Cart_Reader.ino
```
//******************************************
// CHOOSE HARDWARE VERSION
// !!! CHOOSE HARDWARE VERSION !!!
//******************************************
#define HW4
//#define HW3
// Remove // in front of the line with your hardware version
// #define HW5
// #define HW4
#define HW3
// #define HW2
// #define HW1
// #define SERIAL_MONITOR
@ -80,11 +82,7 @@ For more info please have a look at [this wiki article](https://github.com/sanni
Needed libraries(already included in the portable Arduino IDE under Releases)
SD lib: https://github.com/greiman/SdFat
OLED lib: https://github.com/adafruit/Adafruit_SSD1306
GFX Lib: https://github.com/adafruit/Adafruit-GFX-Library
BusIO: https://github.com/adafruit/Adafruit_BusIO
LCD lib: https://github.com/olikraus/U8g2_Arduino
RGB Tools lib: https://github.com/joushx/Arduino-RGB-Tools (you need to move the files from the src subdir to the root dir of the library)
Neopixel lib: https://github.com/adafruit/Adafruit_NeoPixel
Rotary Enc lib: https://github.com/mathertel/RotaryEncoder
SI5351 lib: https://github.com/etherkit/Si5351Arduino