Coolkast

A festival cooler with four choices, each beer paired with its own colour, music track and LED animation. Multiple ESP32s handle inputs and LED timing, a Raspberry Pi drives the audio cues, relays trigger the peripheral effects. Wiring is modular and labelled for fast service.

Challenge. Give each of four beer choices an unmistakable response while keeping the system practical to service in a live festival environment.

Approach. ESP32 controllers handle inputs and LED timing, a Raspberry Pi runs the audio cues and relays trigger the surrounding effects.

Development. The control system and wiring were made modular and clearly labelled so individual elements remain accessible for fast service.

Outcome. Each selection triggers its own coordinated colour, music track and LED animation through one integrated control system.