Pitlochry Distribution .

Distribution.

Working as part of the exhibit design team at FifeX Ltd, I played a pivotal role in the functionality and user experience of this interactive, installed at the SSE Visitor Centre in Pitlochry.

The client — one of the largest energy suppliers in the UK — wanted an interactive to demonstrate how electrical energy is correctly managed as it travels from a hydro dam to a house. The model guides visitors through the journey that electricity takes, and the critical role transformers play along the way.

I designed and built the control system using custom PCBs to daisy-chain multiple RFID readers over I2C, managing three states for each transformer position: correct, wrong, and not detected. If the sequence is right, the house illuminates green. If a transformer is in the wrong position, the house glows red — indicating it has been blown up by a surge. Reed switches with magnets were used to detect pylon positions, as their order doesn't matter, making magnetic detection the cleanest solution.

The success of the first installation led to requests from several other SSE sites for similar interactives. Later versions used flexible LED noodles embedded in 3D printed pylons to show power travelling along them, and offered a choice of energy source — wind or hydro.

Custom PCB RFID / I2C Reed Switches LED Control 3D Printing Exhibit Design FifeX Ltd

Step 1

The visitor places transformers between the hydro dam and the house, choosing the correct sequence for safe power delivery.

Step 2

RFID readers detect each transformer's identity and position. Reed switches confirm the pylons are in place.

Step 3

Correct sequence — the house glows green. Wrong sequence — the house glows red, showing the consequences of a surge.

Pitlochry Distribution interactive — overview angle

Early pylon LED test …

Pitlochry Distribution — MDF panel build

MDF panel test …

Pitlochry Distribution — finished interactive overview

The finished interactive working in full …


A wee bit Extra

This project was part of my full-time employment with FifeX Ltd (Scotland). Working alongside a team of exhibit designers who handled the drawings, panelling and graphics, I used my experience in electronics to design and build the complete control system.

This interactive is currently installed at the SSE Visitor Centre in Pitlochry, with further versions deployed across additional SSE sites following the success of the original installation.