Puppy Bank

Physical computing · ProtoPie · Interaction design

An archive prototype exploring how a coin deposit could trigger coordinated physical and screen feedback from a puppy character.

ARCHIVE POSITIONINGArchive-only physical-computing prototype · not a shipped product and not a validated child-learning outcome.

MY CONTRIBUTION: Interaction concept · experience flow · enclosure prototyping · wiring logic · ProtoPie interaction states · documentation
ROLE: Interaction Designer & Prototyper
CONTEXT: Independent physical-computing exploration making a child’s coin deposit feel immediate and understandable
SCOPE: Coin-triggered sensor input · servo, NeoPixel, and screen feedback · enclosure and timing coordination

HERO EVIDENCECONCEPT INTENT · Sketch of the intended coin-triggered physical and screen response.

HERO EVIDENCEPHYSICAL EVIDENCE · Enclosure material prototype, not a completed production result.

Case file

INTENDED AUDIENCE

Intended for children learning the cause-and-effect of saving; no child participant study is documented.

DESIGN QUESTION

Saving is abstract and delayed for children. The concept asks whether immediate multisensory feedback can make one deposit easier to understand and more rewarding.

DURATION + TEAM

Duration not documented in the supplied source · independent project.

MY ROLE

Independent interaction designer and prototyper — concept, flow, enclosure trial, wiring logic, ProtoPie states, and implementation documentation.

METHODS

Interaction mapping, enclosure prototyping, sensor/servo/NeoPixel logic, ProtoPie state and timing design, and implementation planning.

CONSTRAINTS

Coin handling and child safety, enclosure/electronics fit, sensor reliability, and timing across servo, light, and screen feedback.

DOCUMENTED OUTCOME

The supplied artifacts document a physical enclosure trial, interaction logic, ProtoPie states, and control code. They do not independently demonstrate a completed child-tested or production-ready system.

EVIDENCE LIMIT

No child participants, task observations, success criteria, safety review, repeat-use result, launch, or behavior impact is documented.

Process & evidence

Reference moodboard, interaction flow, concept sketch, physical enclosure material trial, ProtoPie settings, and control-logic excerpt. Captions distinguish physical evidence, process artifacts, renders, and aspirational imagery.

Puppy Bank: Reference moodboard · not the final prototype — 01 · Reference moodboard · not the final prototype

Puppy Bank: Interaction flow diagram — 02 · Interaction flow diagram

Puppy Bank: ProtoPie state and timing setup — 03 · ProtoPie state and timing setup

Puppy Bank: Control-logic excerpt · implementation evidence — 04 · Control-logic excerpt · implementation evidence

Reflection & next step

WHAT I LEARNED

The central design challenge was coordinating physical and screen feedback without letting the reward obscure the saving action.

NEXT VALIDATION

With guardian consent, test whether children can deposit a coin and explain the response without prompting; record errors, hesitation, repeat use, and language, alongside choking, electrical, enclosure, and sound-control safety checks.