diff --git a/dotfiles/zshrc b/dotfiles/zshrc
index 901faa7..0799dca 100644
--- a/dotfiles/zshrc
+++ b/dotfiles/zshrc
@@ -62,3 +62,12 @@ fi
 
 # Load any local settings
 if [ -e $HOME/.zshrc.local ] ; then source $HOME/.zshrc.local ; fi
+
+function start_esp {
+  if [ ! -d ${HOME}/tools/esp ] ; then
+    echo "ESP not installed!" >/dev/stderr
+    return 1
+  fi
+  export PATH="${PATH}:${HOME}/tools/esp/xtensa-esp32-elf/bin"
+  export IDF_PATH="${HOME}/tools/esp/esp-idf"
+}