diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f9888b7
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,15 @@
+*.o
+*.elf
+*.lst
+*.map
+*.sym
+*.lss
+*.eep
+*.srec
+*.bin
+*.hex
+*.al
+*.i
+*.s
+*~
+
diff --git a/mendel.pde b/mendel.pde
new file mode 100644
index 0000000..1c3f190
--- /dev/null
+++ b/mendel.pde
@@ -0,0 +1,4 @@
+
+/*
+	The existence of this file makes sources buildable with the Arduino IDE.
+*/