diff --git a/.vs/VSWorkspaceState.json b/.vs/VSWorkspaceState.json
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--- /dev/null
+++ b/.vs/VSWorkspaceState.json
@@ -0,0 +1,6 @@
+{
+  "ExpandedNodes": [
+    ""
+  ],
+  "PreviewInSolutionExplorer": false
+}
\ No newline at end of file
diff --git a/.vs/hydro_nft/FileContentIndex/440658ca-e0a3-4c9b-bbce-36f66d1c9dd1.vsidx b/.vs/hydro_nft/FileContentIndex/440658ca-e0a3-4c9b-bbce-36f66d1c9dd1.vsidx
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diff --git a/.vs/hydro_nft/FileContentIndex/664ff576-7809-44bd-9941-4f9a910cafab.vsidx b/.vs/hydro_nft/FileContentIndex/664ff576-7809-44bd-9941-4f9a910cafab.vsidx
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diff --git a/.vs/hydro_nft/FileContentIndex/read.lock b/.vs/hydro_nft/FileContentIndex/read.lock
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diff --git a/.vs/hydro_nft/v17/.suo b/.vs/hydro_nft/v17/.suo
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diff --git a/.vs/slnx.sqlite b/.vs/slnx.sqlite
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diff --git a/Sketch/Photon_HydroponicWateringSystem_Sketch.ino b/Sketch/Photon_HydroponicWateringSystem_Sketch.ino
new file mode 100644
index 0000000..5b6eec8
--- /dev/null
+++ b/Sketch/Photon_HydroponicWateringSystem_Sketch.ino
@@ -0,0 +1,131 @@
+//Particle photon sketch
+//advanced efficient hydroponic nft system
+//released under GPL
+//by Nitin Sawant
+//nitin@nitinsawant.com
+
+int r1 = D0;//relay
+
+int t1 = D1;//trigger ss1
+int e1 = D2;//echo ss1
+int t2 = D3;//trigger ss2
+int e2 = D4;//echo ss2
+
+float distance1, distance2;
+float upper_level,lower_level;
+
+int bucket_height=40;//max height of bucket
+int min_water = 5;
+int max_water = 35;
+
+bool ON = true;
+bool OFF = false;
+void setup() {
+  Serial.begin(115200);
+  pinMode(e1,INPUT);//echo pin of ultraSonic
+  pinMode(t1,OUTPUT);//trig pin of ultraSonic
+  
+  pinMode(e2,INPUT);//echo pin of ultraSonic
+  pinMode(t2,OUTPUT);//trig pin of ultraSonic
+  
+  pinMode(r1,OUTPUT);// relay
+}
+
+float GetWaterLevel(int dist){
+  return bucket_height - dist;
+}
+
+float CheckWaterLevelSS1() //distance calculaion...
+{
+  digitalWrite(t1,HIGH);
+  delayMicroseconds(8);
+  digitalWrite(t1,LOW);
+  delayMicroseconds(2);
+  
+  float duration1 = pulseIn(e1,HIGH);
+  distance1 = (duration1*0.0343)/2;
+  //Serial.println("SS1: "+ String(distance1)+" cm");
+  if(distance1>bucket_height){
+    distance1=bucket_height;
+  }
+
+  return GetWaterLevel(distance1);
+}
+
+float CheckWaterLevelSS2() //distance calculaion...
+{
+  digitalWrite(t2,HIGH);
+  delayMicroseconds(8);
+  digitalWrite(t2,LOW);
+  delayMicroseconds(2);
+  
+  float duration2 = pulseIn(e2,HIGH);
+  distance2 = (duration2*0.0343)/2;
+  //Serial.println("SS2: "+ String(distance2)+" cm");
+  if(distance2>bucket_height){
+    distance2=bucket_height;
+  }
+
+  return GetWaterLevel(distance2);
+}
+
+String GetPumpSwitchStatus(bool on){
+  if(on){
+    Serial.println("Switching pump: ON"); 
+  }else{
+    Serial.println("Switching pump: OFF"); 
+  }
+}
+
+void SwitchPump(bool on){
+  GetPumpSwitchStatus(on); 
+  if(on){//turn on
+    if(!PumpIsOn()){ 
+      digitalWrite(r1,HIGH);// Pump On...
+    }
+  }else{//rurn off
+    if(PumpIsOn()){
+      digitalWrite(r1,LOW);// pump off...
+    }
+  }  
+}
+
+bool PumpIsOn(){
+  bool o = (digitalRead(r1)==1);
+  if(o){
+    Serial.println("Pump is: ON");    
+  }else{
+    Serial.println("Pump is: OFF");    
+  } 
+  return o;  
+}
+
+void loop(){  
+  lower_level = CheckWaterLevelSS2();  
+  Serial.println("Lower Level: "+ String(lower_level)+" cm");
+  
+  delay(1000);
+}
+void loop2XXX() {
+  upper_level = CheckWaterLevelSS1();
+  lower_level = CheckWaterLevelSS2();
+  Serial.println("SS1: "+ String(distance1)+" cm, " + "SS2: "+ String(distance2)+" cm");
+  Serial.println("Upper Level: "+ String(upper_level)+" cm, " + "Lower Level: "+ String(lower_level)+" cm");
+
+  bool action_done = false;
+  if(lower_level<=min_water){//if water lower in bucket is finished
+    SwitchPump(OFF);
+    action_done = true;
+  }else //if there is water in lower bucket
+    if(upper_level<=min_water){//if water in upper bucket is finished
+      SwitchPump(ON);
+      action_done = true;
+  }
+
+  if(!action_done){
+    PumpIsOn();
+    Serial.println("PROGRAM IS IDLE");
+  }
+  
+  delay(1000);
+}