Construction Details – Second Generation Prototype
To simplify the design, the miniature connector between the main board and the sensor board was removed. The interconnecting wires are directly soldered to both boards and the hole is sealed by silicone rubber. To cut cost, the main PCB is held in position by glue rather than a screw and a battery with pins was used in place of the battery holder. The mechanical construction of the improved design is shown under.
Mechanical Construction (Top and Bottom View)
The photographs of the actual PCB are shown under.
Prototype PCB of the Improved Design (Top and Bottom View)
The photographs of the assembled gauge are shown under.
Assembled Tire Pressure Gauge with and Without the Front Plexiglass