diff --git a/README.md b/README.md
index 2507fcd..ac7588e 100644
--- a/README.md
+++ b/README.md
@@ -12,4 +12,26 @@ pnpm : https://pnpm.io/installation
 
 install dependencies : pnpm i
 
-run : pnpm run dev 
\ No newline at end of file
+run : pnpm run dev 
+
+### if you want to check about mqtt stuff
+
+install : 
+MQTT Explorer at : https://mqtt-explorer.com/
+
+then log with your mqtt broker credential. The projects works whatever is the broker (use hiveMq to make it works for sure and don't forget to modify the code).
+
+### to setup and work with the rfid, follow those steps
+
+https://console.hivemq.cloud/clients/arduino-esp8266
+
+### !! be careful, arduino IDE version is important you should work with the version: 1.8.18 !!
+
+https://www.aranacorp.com/fr/utilisation-dun-module-rfid-avec-un-esp8266/#google_vignette
+
+Make sure that the ports declared in your code are the same that those which were plugged on the esp8266.
+When you pluged the esp you should press the rst button and launch the serial monitor to see if it works.
+
+
+
+