diff --git a/drivers/dv_display/dv_display.cpp b/drivers/dv_display/dv_display.cpp
index 179d5b5d..512197c3 100644
--- a/drivers/dv_display/dv_display.cpp
+++ b/drivers/dv_display/dv_display.cpp
@@ -81,10 +81,10 @@ namespace pimoroni {
     mp_printf(&mp_plat_print, "Start I2C\n");
 
     if (res_mode != 0xFF) {
-      i2c.reg_write_uint8(I2C_ADDR, I2C_REG_SET_RES, res_mode);
+      i2c->reg_write_uint8(I2C_ADDR, I2C_REG_SET_RES, res_mode);
     }
 
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_START, 1);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_START, 1);
     mp_printf(&mp_plat_print, "Started\n");
   }
   
@@ -111,18 +111,18 @@ namespace pimoroni {
   }
 
   uint8_t DVDisplay::get_gpio() {
-    return i2c.reg_read_uint8(I2C_ADDR, I2C_REG_GPIO);
+    return i2c->reg_read_uint8(I2C_ADDR, I2C_REG_GPIO);
   }
 
   uint8_t DVDisplay::get_gpio_hi() {
-    return i2c.reg_read_uint8(I2C_ADDR, I2C_REG_GPIO_HI);
+    return i2c->reg_read_uint8(I2C_ADDR, I2C_REG_GPIO_HI);
   }
 
   void DVDisplay::i2c_modify_bit(uint8_t reg, uint bit, bool enable) {
-    uint8_t val = i2c.reg_read_uint8(I2C_ADDR, reg);
+    uint8_t val = i2c->reg_read_uint8(I2C_ADDR, reg);
     if (enable) val |= 1u << bit;
     else val &= ~(1u << bit);
-    i2c.reg_write_uint8(I2C_ADDR, reg, val);
+    i2c->reg_write_uint8(I2C_ADDR, reg, val);
   }
 
   void DVDisplay::set_gpio_hi_dir(uint pin, bool output) {
@@ -130,7 +130,7 @@ namespace pimoroni {
   }
 
   void DVDisplay::set_gpio_hi_dir_all(uint8_t val) {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_OE, val);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_OE, val);
   }
 
   void DVDisplay::set_gpio_hi(uint pin, bool on) {
@@ -138,7 +138,7 @@ namespace pimoroni {
   }
 
   void DVDisplay::set_gpio_hi_all(uint8_t val) {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_OUT, val);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_OUT, val);
   }
 
   void DVDisplay::set_gpio_hi_pull_up(uint pin, bool on) {
@@ -146,7 +146,7 @@ namespace pimoroni {
   }
 
   void DVDisplay::set_gpio_hi_pull_up_all(uint8_t val) {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_PULL_UP, val);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_PULL_UP, val);
   }
 
   void DVDisplay::set_gpio_hi_pull_down(uint pin, bool on) {
@@ -154,19 +154,19 @@ namespace pimoroni {
   }
 
   void DVDisplay::set_gpio_hi_pull_down_all(uint8_t val) {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_PULL_DOWN, val);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_GPIO_HI_PULL_DOWN, val);
   }
 
   void DVDisplay::set_led_level(uint8_t level) {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_LED, level | 0x80);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_LED, level | 0x80);
   }
 
   void DVDisplay::set_led_heartbeat() {
-    i2c.reg_write_uint8(I2C_ADDR, I2C_REG_LED, 2);
+    i2c->reg_write_uint8(I2C_ADDR, I2C_REG_LED, 2);
   }
 
   void DVDisplay::get_edid(uint8_t* edid) {
-    i2c.read_bytes(I2C_ADDR, I2C_REG_EDID, edid, 128);
+    i2c->read_bytes(I2C_ADDR, I2C_REG_EDID, edid, 128);
   }
 
   void DVDisplay::write(uint32_t address, size_t len, const uint16_t colour)
diff --git a/drivers/dv_display/dv_display.hpp b/drivers/dv_display/dv_display.hpp
index b25a0e9a..9d15fc4b 100644
--- a/drivers/dv_display/dv_display.hpp
+++ b/drivers/dv_display/dv_display.hpp
@@ -25,25 +25,11 @@ namespace pimoroni {
       MODE_RGB888 = 3,
     };
 
-    //--------------------------------------------------
-    // Variables
-    //--------------------------------------------------
-  protected:
-    // Ram accessed through the APS6404 driver
-    APS6404 ram;
-
-    // I2C interface to driver
-    I2C i2c;
-
-    // interface pins
-    static constexpr uint CS     = 17;
-    static constexpr uint D0     = 19;
-    static constexpr uint VSYNC  = 16;
-    static constexpr uint RAM_SEL = 8;
+    // I2C pins
     static constexpr uint I2C_SDA = 6;
     static constexpr uint I2C_SCL = 7;
 
-    // I2C
+    // I2C address and registers
     static constexpr uint I2C_ADDR = 0x0D;
     static constexpr uint I2C_REG_SET_RES = 0xF8;
     static constexpr uint I2C_REG_START = 0xF9;
@@ -55,6 +41,22 @@ namespace pimoroni {
     static constexpr uint I2C_REG_GPIO_HI_PULL_UP = 0xCB;
     static constexpr uint I2C_REG_GPIO_HI_PULL_DOWN = 0xCC;
     static constexpr uint I2C_REG_EDID = 0xED;
+
+    //--------------------------------------------------
+    // Variables
+    //--------------------------------------------------
+  protected:
+    // Ram accessed through the APS6404 driver
+    APS6404 ram;
+
+    // I2C interface to driver
+    I2C* i2c;
+
+    // interface pins
+    static constexpr uint CS     = 17;
+    static constexpr uint D0     = 19;
+    static constexpr uint VSYNC  = 16;
+    static constexpr uint RAM_SEL = 8;
     
     static constexpr uint32_t base_address = 0x10000;
     uint16_t width = 0;
@@ -71,8 +73,16 @@ namespace pimoroni {
     // Note resolutions on the second line require quite extreme overclocking and may not work on all hardware.
     // Either or both of the horizontal or vertical component of any resolution may be halved.
     DVDisplay(uint16_t width, uint16_t height, Mode mode = MODE_RGB555)
-      : ram(CS, D0)
-      , i2c(I2C_SDA, I2C_SCL)
+      : ram(CS, D0, pio0)
+      , i2c(new I2C(I2C_SDA, I2C_SCL))
+      , width(width), height(height)
+      , mode(mode)
+      , pixel_buffer_location(-1, -1)
+    {}
+
+    DVDisplay(uint16_t width, uint16_t height, I2C* i2c, Mode mode = MODE_RGB555)
+      : ram(CS, D0, pio0)
+      , i2c(i2c)
       , width(width), height(height)
       , mode(mode)
       , pixel_buffer_location(-1, -1)