     // read sensor data
     plant1_value = analogRead(A0);
     plant2_value = analogRead(A1);
-    light_value = analogRead(A2);
-    temperature_value = analogRead(A3);
+    plant3_value = analogRead(A2);
+    plant4_value = analogRead(A3);
+    light_value = analogRead(A4);
+    temperature_value = analogRead(A5);
 
     // set led bar accordingly to plant1_value
     led_bar_value = round(plant1_value/80); // min: 0, max: 800

            Serial.print(plant1_value);
            Serial.print(", \"plant2_value\": ");
            Serial.print(plant2_value);
            Serial.print(", \"light_value\": ");
            Serial.print(light_value);
            Serial.print(", \"temperature_value\": ");


int plant1_value = 0;
int plant2_value = 0;
int plant3_value = 0;
int plant4_value = 0;
int temperature_value = 0;
int light_value = 0;

