diff --git a/README.md b/README.md
index 13af16d..9b66ca7 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,9 @@ Control page
 
 Config page
 ![](https://github.com/gysmo38/mitsubishi2MQTT/blob/master/images/config_page.png)
+
+***
+How to use:
+Flash the sketch with flash size include SPIFFS option.
+After flash, connect to device AP with name HVAC_XXXX (XXXX last 4 character MAC address), enter 192.168.1.1 and set Wifi information, save & reboot
+Set MQTT information for use with Home Assistant (Optinal), find the device IP with last 4 character MAC address in your router
diff --git a/src/mitsubishi2mqtt/mitsubishi2mqtt.ino b/src/mitsubishi2mqtt/mitsubishi2mqtt.ino
index cec1c75..34a5a61 100644
--- a/src/mitsubishi2mqtt/mitsubishi2mqtt.ino
+++ b/src/mitsubishi2mqtt/mitsubishi2mqtt.ino
@@ -1,13 +1,13 @@
 #include <ESP8266WiFi.h>      // WIFI for ESP8266
 #include <ESP8266mDNS.h>      // mDNS for ESP8266
 #include <ESP8266WebServer.h> // webServer for ESP8266
-#include <ArduinoJson.h>      // json to process MQTT
-#include <PubSubClient.h>     // MQTT
+#include <ArduinoJson.h>      // json to process MQTT: ArduinoJson 6.11.4
+#include <PubSubClient.h>     // MQTT: PubSubClient 2.7.0
 #include <DNSServer.h>        // DNS for captive portal
 #include "FS.h"               // SPIFFS for store config 
 
 #include <ArduinoOTA.h>   // for OTA
-#include <HeatPump.h>     // Swiacago library
+#include <HeatPump.h>     // Swiacago library: https://github.com/SwiCago/HeatPump
 //#include <Ticker.h>     // for LED status (Using a Wemos D1-Mini)
 #include "config.h"       // config file
 #include "html_common.h"  // common code HTML (like header, footer)
diff --git a/src/mitsubishi2mqtt/wemos_d1_mini_041b.bin b/src/mitsubishi2mqtt/wemos_d1_mini_041b.bin
new file mode 100644
index 0000000..b73ce72
Binary files /dev/null and b/src/mitsubishi2mqtt/wemos_d1_mini_041b.bin differ