diff --git a/examples/arduino-blink-earlephilhower/platformio.ini b/examples/arduino-blink-earlephilhower/platformio.ini
index 86a3b50..e0dd4da 100644
--- a/examples/arduino-blink-earlephilhower/platformio.ini
+++ b/examples/arduino-blink-earlephilhower/platformio.ini
@@ -10,6 +10,7 @@
 [env]
 platform = raspberrypi
 framework = arduino
+board_build.core = earlephilhower
 platform_packages = 
     maxgerhardt/framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git
     maxgerhardt/toolchain-pico@https://github.com/earlephilhower/pico-quick-toolchain/releases/download/1.3.3-a/x86_64-linux-gnu.arm-none-eabi-ed6d983.220212.tar.gz
@@ -19,3 +20,6 @@ board = pico
 
 [env:nanorp2040connect]
 board = nanorp2040connect
+
+[env:adafruit_feather]
+board = adafruit_feather
\ No newline at end of file