diff --git a/rpi/examples/hello_epaper/main.cpp b/rpi/examples/hello_epaper/main.cpp
index 9ba593f..a196647 100644
--- a/rpi/examples/hello_epaper/main.cpp
+++ b/rpi/examples/hello_epaper/main.cpp
@@ -6,8 +6,22 @@
 //
 #include "../../../src/bb_epaper.h"
 BBEPAPER bbep(EPD27_176x264); // Waveshare 2.7" e-paper HAT
+// BCM GPIO numbers
+#define PIN_DC 25
+#define PIN_RST 17
+#define PIN_BUSY 24
+#define PIN_CS 8
 
 int main(int argc, const char * argv[]) {
+  bbep.initIO(PIN_DC, PIN_RST, PIN_BUSY, PIN_CS, 0, 8000000);
+  bbep.fillRect(0,0,128,296, BBEP_WHITE);
+  bbep.setRotation(90);
+  bbep.setFont(FONT_12x16);
+  bbep.setTextColor(BBEP_BLACK, BBEP_WHITE);
+  bbep.drawString("Hello World!", 0, 0);
+  bbep.refresh(REFRESH_FULL);
+  bbep.sleep(DEEP_SLEEP);
+
     return 0;
 } /* main() */