Building Smart Wi-Fi Enabled Water Floats

See how to build a floater with a single sensor or two sensors

How to build a single floater

To build a single floater, you will need the following list of materials:

(1x) Plastic Floater 5 ½” (140)
(1x) Rigid Conduit 20mm (1000mm length)
(1x) PVC rod (2000mm length / diameter ½”)
(1x) Magnetic Rim (inner diameter 20mm / external diameter 30mm)
(1x) Contact Sensor
(1x) Clamp
Coloured tape
Cable ties
Epoxi glue

Step by step single floater

Step 1: Fix magnetic rim at the top of the conduit using Epoxy glue

Step 2: Make a hole in the bottom of the floater. Note that the conduit should reach the bottom of the floater and then be sealed applying Epoxy glue.

Step 3: Fix contact sensor in the clamp using double sided tape and cable ties.

Step 4: Make sure the arrow mark in the contact sensor will be touched by the magnetic rim.

Step 5: Insert PVC rod inside the conduit and attach the contact sensor module in the desired height. Optional – Use coloured tape for visual inspection.

How to build a Dual Floater

That floater is useful for marking a specific upper and lower water height limit.

To build a dual floater, you will need the following list of materials:

(1x) Plastic Floater 5 ½” (140)
Rigid Conduit 20mm
- (4x) 50mm length
- (1x) 320mm length
- (1x) 1000mm length
(1x) Metallic rod (2700mm length / diameter ½”)
(2x) Magnetic Rim (inner diameter 20mm / external diameter 30mm)
(2x) Contact sensor
(2x) Clamp
(4x) Inspection Tee PVC Conduit 20mm
Coloured tape
Cable ties
Epoxy glue