Added usage info.

esphome/lab-ble-proxy.h

@@ -2,7 +2,10 @@
  * ESPHome helper for OWON B35T/B35T+ BLE meter on M5Stack Core 2.
  * Parser is based on the standalone Arduino sketch by Reaper7
  * (Beerware license, Revision 42) and Dean Cording's owonb35 notes.
+ * Rendering code and some functionality modified to suppport the
+ * Atorch DL24 dc load.
  */
+
 #pragma once
 
 #include <cmath>

esphome/lab-ble-proxy.yaml

@@ -1,7 +1,14 @@
+# Connects to an OWON BT35T/BT35T+ multimeter and an Atorch DL24 dc-load and mirrors their
+# displays. Also sends those values to Home Assistant for logging and dashboard display.
+# Also exposes actionable buttons to HA to control the devices.
+#
 # Derived work based on https://github.com/reaper7/M5Stack_BLE_client_Owon_B35T by reaper7.
-# AI (ChatGPT (GPT5.5), Qwen3.6) has been used to adopt the Arduino sketch to ESPHome.
+# AI (ChatGPT (GPT5.5) has been used to adopt the Arduino sketch to ESPHome
 # Ported to M5Stack Core2 due to memory constraints.
-# Integrated atorch ble proxy functionality from https://github.com/syssi/esphome-atorch-dl24 by syssi.
+# Integrated Atorch BLE proxy functionality from https://github.com/syssi/esphome-atorch-dl24 by syssi.
+# Soft buttons work as indicated for OWON meter. Left/right so select action, middle to execute.
+# Long-press is supported. Display switches to last connected device, tap center of screen to
+# switch. The dc-load has no on-device buttons, but both are available from HA.
 
 substitutions:
   name: "lab-ble-proxy"