gf-bt-proxy-01 - substitutions

gf-bt-proxy-01.yaml

@@ -1,6 +1,11 @@
+substitutions:
+  devicename: gf-bt-proxy-01
+  low_devicename: gf_bt_proxy_01
+  friendly_devicename: GF Bluetooth Proxy
+
 esphome:
-  name: gf-bt-proxy-01
-  friendly_name: gf-bt-proxy-01
+  name: $devicename
+  friendly_name: $friendly_devicename
 
 esp32:
   board: esp32dev