Add pcf85063a driver

libraries/badger2040w/badger2040w.cmake

@@ -6,6 +6,13 @@ if(NOT TARGET pico_graphics)
   include(${CMAKE_CURRENT_LIST_DIR}/../../libraries/pico_graphics/pico_graphics.cmake)
 endif()
 
+if(NOT TARGET pcf85063a)
+  include(${CMAKE_CURRENT_LIST_DIR}/../../drivers/pcf85063a/pcf85063a.cmake)
+endif()
+
+if(NOT TARGET pimoroni_i2c)
+  include(${CMAKE_CURRENT_LIST_DIR}/../../common/pimoroni_i2c.cmake)
+endif()
 set(LIB_NAME badger2040w)
 add_library(${LIB_NAME} INTERFACE)
 
@@ -16,4 +23,10 @@ target_sources(${LIB_NAME} INTERFACE
 target_include_directories(${LIB_NAME} INTERFACE ${CMAKE_CURRENT_LIST_DIR})
 
 # Pull in pico libraries that we need
-target_link_libraries(${LIB_NAME} INTERFACE uc8151 pico_graphics pico_stdlib hardware_pwm)
+target_link_libraries(${LIB_NAME} INTERFACE 
+  uc8151 
+  pcf85063a 
+  pico_graphics 
+  pico_stdlib 
+  hardware_pwm
+  pimoroni_i2c)

libraries/badger2040w/badger2040w.cpp

@@ -4,6 +4,7 @@
 #include "hardware/pwm.h"
 #include "hardware/watchdog.h"
 
+#include "pimoroni_i2c.hpp"
 #include "badger2040w.hpp"
 
 namespace pimoroni {
@@ -47,6 +48,7 @@ namespace pimoroni {
 
     uc8151 = std::make_unique<UC8151>(296, 128, ROTATE_0);
     graphics = std::make_unique<PicoGraphics_Pen1BitY>(296, 128, nullptr);
+    pcf85063a = std::make_unique<PCF85063A>(new I2C(I2C_BG_SDA, I2C_BG_SCL), (uint)RTC);
   }
 
   void Badger2040W::halt() {

libraries/badger2040w/badger2040w.hpp

@@ -4,6 +4,7 @@
 #include <memory>
 
 #include "drivers/uc8151/uc8151.hpp"
+#include "drivers/pcf85063a/pcf85063a.hpp"
 #include "libraries/pico_graphics/pico_graphics.hpp"
 
 namespace pimoroni {
@@ -18,6 +19,7 @@ namespace pimoroni {
   public:
     std::unique_ptr<UC8151> uc8151;
     std::unique_ptr<PicoGraphics_Pen1BitY> graphics;
+    std::unique_ptr<PCF85063A> pcf85063a;
     Badger2040W(){};
     void init();
     void update();
@@ -39,6 +41,7 @@ namespace pimoroni {
 
   public:
     enum pin {
+      RTC         = 8,
       A           = 12,
       B           = 13,
       C           = 14,