diff --git a/lib/DiscordAPI/include/DiscordAPI.h b/lib/DiscordAPI/include/DiscordAPI.h
index 824b898..dd29aa6 100644
--- a/lib/DiscordAPI/include/DiscordAPI.h
+++ b/lib/DiscordAPI/include/DiscordAPI.h
@@ -15,7 +15,24 @@ public:
      */
     DiscordAPI(String hookUrl);
 
-    bool sendMessage(String message);
+    /**
+     * @brief send a message to the discord webhook
+     * @param trame trame a envoyer
+     * @return true la trame est bien envoyée
+     * @return false la trame n'est pas envoyée
+     */
+    bool sendMessage(String trame);
+
+    /**
+     * @brief envoie un embed discord avec les horaires d'ouverture et de fermeture du lab
+     *
+     * @param hStart heure d'ouverture
+     * @param hEnd heure de fermeture
+     * @return true la trame est bien envoyée
+     * @return false la trame n'est pas envoyée
+     */
+    bool sendheure(String hStart, String hEnd);
+
 private:
 
     /**
diff --git a/lib/DiscordAPI/src/DiscordAPI.cpp b/lib/DiscordAPI/src/DiscordAPI.cpp
index fec6ff7..86a28b7 100644
--- a/lib/DiscordAPI/src/DiscordAPI.cpp
+++ b/lib/DiscordAPI/src/DiscordAPI.cpp
@@ -6,9 +6,11 @@ DiscordAPI::DiscordAPI(String hookUrl){
     this->httpClient = new HTTPClient();
     this->wifiClient = new BearSSL::WiFiClientSecure;
     this->wifiClient->setInsecure();
+
+    randomSeed(analogRead(A0));
 }
 
-bool DiscordAPI::sendMessage(String message){
+bool DiscordAPI::sendMessage(String trame){
     bool sortie = true;
 
     if(WiFi.status() != WL_CONNECTED){
@@ -18,7 +20,7 @@ bool DiscordAPI::sendMessage(String message){
     this->httpClient->begin(*this->wifiClient, this->hookUrl);
     this->httpClient->addHeader("Content-Type", "application/json");
 
-    int resp = this->httpClient->POST("{\"content\":\""+ message +"\"}");
+    int resp = this->httpClient->POST(trame);
     if(resp != 204){
         sortie = false;
         Serial.print("sending message error code : ");
@@ -27,3 +29,10 @@ bool DiscordAPI::sendMessage(String message){
     this->httpClient->end();
     return sortie;
 }
+
+
+bool DiscordAPI::sendheure(String hStart, String hEnd){
+    int color = random(16777215);
+    String trame = "{\"embeds\": [{\"title\": \"Le Lab est ouvert !\",\"description\": \"Le Lab est ouvert de **"+ hStart +"** à **"+ hEnd +"**\",\"color\": \"" + color + "\"}]}";
+    return this->sendMessage(trame);
+}