Added homing functionality

printermonitor/Menu/PreheatMenu.cpp

@@ -53,20 +53,22 @@ void PreheatMenu::processKey(char c)
     Menu::processKey(c);
 }
 
-void PreheatMenu::TriggerPreheat(TemperatureMenuItem *item) {
+void PreheatMenu::TriggerPreheat(TemperatureMenuItem *item)
-    if (item->preheatBed) {
+{
+    if (item->preheatBed)
+    {
         client->preheatBed(item->preset->bed);
-
     }
 
-    if (item->preheatChamber) {
+    if (item->preheatChamber)
+    {
         client->preheatChamber(item->preset->chamber);
     }
 
-    if (item->preheatExtruder) {
+    if (item->preheatExtruder)
+    {
         client->preheatTool(0, item->preset->extruder);
     }
-    
 }
 
 void PreheatMenu::CreateTemperatureMenu(TemperatureMenuItem *item)

printermonitor/OctoPrintClient.cpp

@@ -229,6 +229,45 @@ void OctoPrintClient::preheatBed(int temperature)
   WiFiClient printClient = getPostRequest(apiPostData, stringBuffer);
 }
 
+void OctoPrintClient::homeAxis(boolean x, boolean y, boolean z)
+{
+  if (!validate())
+  {
+    return;
+  }
+
+  String apiPostData = "POST /api/printer/printhead HTTP/1.1";
+
+  const size_t capacity = JSON_ARRAY_SIZE(3) + JSON_OBJECT_SIZE(2);
+  DynamicJsonBuffer jsonBuffer(capacity);
+
+  JsonObject &root = jsonBuffer.createObject();
+
+  JsonArray &axes = root.createNestedArray("axes");
+  if (x)
+  {
+    axes.add("x");
+  }
+
+  if (y)
+  {
+    axes.add("y");
+  }
+
+  if (z)
+  {
+    axes.add("z");
+  }
+  root["command"] = "home";
+
+  String json;
+
+  root.printTo(json);
+
+  Serial.println(json);
+  WiFiClient printClient = getPostRequest(apiPostData, json);
+}
+
 void OctoPrintClient::preheatChamber(int temperature)
 {
   if (!validate())

printermonitor/OctoPrintClient.h

@@ -79,6 +79,7 @@ public:
   void getPrinterPsuState();
   void preheatTool(int toolIndex, int temperature);
   void preheatBed(int temperature);
+  void homeAxis(boolean x, boolean y, boolean z);
   void preheatChamber (int temperature);
   void updatePrintClient(String ApiKey, String server, int port, String user, String pass, boolean psu);
   void updateTemperaturePresets();

printermonitor/printermonitor.ino

@@ -444,6 +444,15 @@ void loop()
       case 'B':
       displayMenu(cooldownMenu);
       break;
+      case '1':
+      printerClient.homeAxis(true, false, false);
+      break;
+      case '2':
+      printerClient.homeAxis(false, true, false);
+      break;
+      case '3':
+      printerClient.homeAxis(false, false, true);
+      break;
     }
     }
   }