diff --git a/firmware/lib/epd7in3f/epd7in3f.cpp b/firmware/lib/epd7in3f/epd7in3f.cpp
index 669ed3a..470452e 100644
--- a/firmware/lib/epd7in3f/epd7in3f.cpp
+++ b/firmware/lib/epd7in3f/epd7in3f.cpp
@@ -36,14 +36,11 @@
 
 Epd::~Epd(){};
 
-Epd::Epd()
+Epd::Epd(UWORD width, UWORD height, int busyPin, int restPin, int dcPin, int csPin)
+    : EpdIf(busyPin, restPin, dcPin, csPin)
 {
-    reset_pin = RST_PIN;
-    dc_pin = DC_PIN;
-    cs_pin = CS_PIN;
-    busy_pin = BUSY_PIN;
-    width = EPD_WIDTH;
-    height = EPD_HEIGHT;
+    width = width;
+    height = height;
 };
 
 /******************************************************************************
@@ -168,7 +165,7 @@ void Epd::SendData(unsigned char data)
 
 void Epd::EPD_7IN3F_BusyHigh(void) // If BUSYN=0 then waiting
 {
-    while (!DigitalRead(BUSY_PIN))
+    while (!DigitalRead(busy_pin))
     {
         DelayMs(1);
     }
@@ -317,7 +314,7 @@ void Epd::Sleep(void)
     SendCommand(0x07);
     SendData(0xA5);
     DelayMs(10);
-    DigitalWrite(RST_PIN, 0); // Reset
+    DigitalWrite(reset_pin, 0); // Reset
 }
 
 #endif
diff --git a/firmware/lib/epd7in3f/epd7in3f.h b/firmware/lib/epd7in3f/epd7in3f.h
index 35f52f0..41c9bb2 100644
--- a/firmware/lib/epd7in3f/epd7in3f.h
+++ b/firmware/lib/epd7in3f/epd7in3f.h
@@ -34,10 +34,6 @@
 
 #include "epdif.h"
 
-// Display resolution
-#define EPD_WIDTH 800
-#define EPD_HEIGHT 480
-
 #define UWORD unsigned int
 #define UBYTE unsigned char
 #define UDOUBLE unsigned long
@@ -57,7 +53,7 @@ Color Index
 class Epd : EpdIf
 {
 public:
-    Epd();
+    Epd(UWORD width, UWORD height, int busyPin, int restPin, int dcPin, int csPin);
     ~Epd();
     int Init(void);
     void EPD_7IN3F_BusyHigh(void);
@@ -73,10 +69,6 @@ public:
     void Clear(UBYTE color);
 
 private:
-    unsigned int reset_pin;
-    unsigned int dc_pin;
-    unsigned int cs_pin;
-    unsigned int busy_pin;
     unsigned long width;
     unsigned long height;
 };
diff --git a/firmware/lib/epd7in3f/epdif.cpp b/firmware/lib/epd7in3f/epdif.cpp
index bf2f180..633e32d 100644
--- a/firmware/lib/epd7in3f/epdif.cpp
+++ b/firmware/lib/epd7in3f/epdif.cpp
@@ -30,7 +30,13 @@
 
 #ifdef EPD7IN3F
 
-EpdIf::EpdIf(){};
+EpdIf::EpdIf(int busyPin, int restPin, int dcPin, int csPin)
+{
+    reset_pin = restPin;
+    dc_pin = dcPin;
+    cs_pin = csPin;
+    busy_pin = busyPin;
+};
 
 EpdIf::~EpdIf(){};
 
@@ -51,17 +57,17 @@ void EpdIf::DelayMs(unsigned int delaytime)
 
 void EpdIf::SpiTransfer(unsigned char data)
 {
-    digitalWrite(CS_PIN, LOW);
+    digitalWrite(cs_pin, LOW);
     SPI.transfer(data);
-    digitalWrite(CS_PIN, HIGH);
+    digitalWrite(cs_pin, HIGH);
 }
 
 int EpdIf::IfInit(void)
 {
-    pinMode(CS_PIN, OUTPUT);
-    pinMode(RST_PIN, OUTPUT);
-    pinMode(DC_PIN, OUTPUT);
-    pinMode(BUSY_PIN, INPUT);
+    pinMode(cs_pin, OUTPUT);
+    pinMode(reset_pin, OUTPUT);
+    pinMode(dc_pin, OUTPUT);
+    pinMode(busy_pin, INPUT);
     SPI.begin();
     SPI.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE0));
 
diff --git a/firmware/lib/epd7in3f/epdif.h b/firmware/lib/epd7in3f/epdif.h
index e584e6b..e5a338b 100644
--- a/firmware/lib/epd7in3f/epdif.h
+++ b/firmware/lib/epd7in3f/epdif.h
@@ -30,22 +30,23 @@
 
 #include <Arduino.h>
 
-#define BUSY_PIN 26
-#define RST_PIN 27
-#define DC_PIN 15
-#define CS_PIN 14
-
 class EpdIf
 {
 public:
-    EpdIf(void);
+    EpdIf(int busyPin, int restPin, int dcPin, int csPin);
     ~EpdIf(void);
 
-    static int IfInit(void);
-    static void DigitalWrite(int pin, int value);
-    static int DigitalRead(int pin);
-    static void DelayMs(unsigned int delaytime);
-    static void SpiTransfer(unsigned char data);
+    int IfInit(void);
+    void DigitalWrite(int pin, int value);
+    int DigitalRead(int pin);
+    void DelayMs(unsigned int delaytime);
+    void SpiTransfer(unsigned char data);
+
+protected:
+    unsigned int reset_pin;
+    unsigned int dc_pin;
+    unsigned int cs_pin;
+    unsigned int busy_pin;
 };
 
 #endif
diff --git a/firmware/src/eink.h b/firmware/src/eink.h
index 048af80..4064f35 100644
--- a/firmware/src/eink.h
+++ b/firmware/src/eink.h
@@ -4,6 +4,14 @@
 
 #include "epd7in3f.h"
 
+#define DISPLAY_WIDTH 800
+#define DISPLAY_HEIGHT 480
+
+#define BUSY_PIN 26
+#define RST_PIN 27
+#define DC_PIN 15
+#define CS_PIN 14
+
 const char *einkDisplayProperties = R"json(
 {
   "width": 800,
@@ -41,7 +49,7 @@ const char *einkDisplayProperties = R"json(
 }
 )json";
 
-Epd epd;
+Epd epd(DISPLAY_WIDTH, DISPLAY_HEIGHT, BUSY_PIN, RST_PIN, DC_PIN, CS_PIN);
 
 void initDisplay()
 {