Add esptool

diff --git a/install/esptool.sh b/install/esptool.sh
new file mode 100755 (executable)
index 0000000..86b06f8
--- /dev/null
+++ b/install/esptool.sh
@@ -0,0 +1,7 @@
+MODULE=esptool
+mkdir -p $HOME/envs
+if [ -d $HOME/envs/$MODULE ]; then
+  python -m venv $HOME/envs/$MODULE
+fi
+source $HOME/envs/$MODULE/bin/activate
+pip install $MODULE