diff --git a/toolchain-avr.cmake b/toolchain-avr.cmake
new file mode 100644
index 0000000..6a31fbd
--- /dev/null
+++ b/toolchain-avr.cmake
@@ -0,0 +1,15 @@
+# This will tell CMake that we are cross compiling
+set(CMAKE_SYSTEM_NAME Generic)
+set(CMAKE_SYSTEM_VERSION 1)
+set(CMAKE_SYSTEM_PROCESSOR avr)
+
+# Make sure it knows what binaries to use
+set(CMAKE_AR avr-ar)
+set(CMAKE_ASM_COMPILER avr-as)
+set(CMAKE_C_COMPILER avr-gcc)
+set(CMAKE_CXX_COMPILER avr-g++)
+set(CMAKE_LINKER avr-ld)
+set(CMAKE_OBJCOPY avr-objcopy)
+set(CMAKE_RANLIB avr-ranlib)
+set(CMAKE_SIZE avr-size)
+set(CMAKE_STRIP avr-strip)