change in iot

src/controllers/tanksController.js

@@ -1405,7 +1405,10 @@ exports.IotDevice1 = async (req, reply) => {
     // Update waterlevel in tanksSchema for each tank
     for (const tank of tanks) {
       const { tankhardwareId, tankHeight } = tank;
-
+      
+      if (tankHeight === null || tankHeight === undefined) {
+        continue; // Skip this iteration and move to the next tank
+      }
       // Find the corresponding tank in tanksSchema
       const existingTank = await Tank.findOne({ hardwareId, tankhardwareId });