diff --git a/.gitignore b/.gitignore
index d1a58e0..5489391 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 jsw.h
 ljm.h
 build*/**
+temp*/**
 .vscode
diff --git a/comb_uf2.sh b/comb_uf2.sh
new file mode 100755
index 0000000..2aa49a9
--- /dev/null
+++ b/comb_uf2.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+mkdir -p temp_uf2
+rm -rf temp_uf2/*
+find build-* -name '*.uf2' -execdir bash -c "cat {} >> $PWD/temp_uf2/{}" \;
+