kirby

A smart and cheap cocktail machine

Slide 1

Kirby System Architecture – Dual Control Path Design

A hybrid communication setup combining voice-activated Wi-Fi control via Alexa and direct Bluetooth control via tablet, both converging on the Arduino-driven pumping system.

Slide 1

Hardware, Software and Cloud

Bridging physical computing, automation, and service design to reimagine how we serve drinks

Overview

Kirby is an interactive drink-mixing prototype that combines Arduino-based hardware, Bluetooth connectivity, and a browser interface to automate cocktail preparation. It was designed as an experiment in IoT service innovation, exploring how connected devices can enhance efficiency and customer experience in hospitality settings.

Year: 2025
Role: Hardware & software developer, concept designer
Tools: Arduino IDE, JavaScript (Web Bluetooth API), TailwindCSS, Amazon Alexa Skills Kit, HM-10 BLE module, peristaltic pumps

The challenge

The project started with a simple curiosity: could a low-cost Arduino setup replicate the convenience and precision of commercial drink systems while remaining open and customizable?
The main challenge lay in balancing technical simplicity (so it can be built cheaply and maintained easily) with an engaging user experience. Research into smart appliances and capsule-based models (such as Nespresso) revealed that their success depends on standardization and branding, while in beverage contexts, the perceived premium value comes from the human act of pouring. This insight led to positioning Kirby not as a luxury product, but as a high-throughput, event-oriented solution where speed and consistency drive the value proposition.

Steps

1

Concept & Design

Sketched the functional architecture and wiring layout for eight independent pumps.

2

Hardware Implementation

Assembled relays, tubing, and power management to handle multiple liquid sources.

3

Software Integration

Developed the Arduino firmware to interpret single-character BLE commands and execute timed dispensing sequences.

4

Web Interface Development

Built a lightweight front-end using TailwindCSS and the Web Bluetooth API to send commands directly from a browser.

Solution

From a management standpoint, Kirby demonstrates how digital innovation can create new service efficiencies even in traditionally manual settings. In small-scale environments (private parties, small bars, events), Kirby reduces preparation time and human error, improving operational throughput and cost per serving.
While capsule-based business models could standardize ingredients and drive recurring revenue, the current prototype reveals that consumer perception still favors human service for premium experiences. Therefore, the viable market lies in contexts where velocity, consistency, and novelty outweigh ritual—such as festivals, private events, or self-service hospitality corners.

core features

  • Real-time BLE control: Commands drinks directly from any Chrome browser.

  • Alexa integration: Orders can be placed through voice interaction.

  • Modular recipe system: Each drink corresponds to a simple character command, enabling flexible configuration.

  • Open hardware design: Built entirely from affordable, off-the-shelf components.

  • Scalable use cases: From personal parties to event catering where quick service matters.