Firmware: build & optimize

Delivered work

Designed, built and operated first-hand.

A distance sensor notices someone approaching and plays the announcement — on battery, for a long time.

The board has no recovery button — a failed update still has to come back to life on its own.

Measures how full the bin is and reports it — placed where there is no mains power, so every milliamp counts.

Firmware work typically runs ₩3M–5M. It varies with the board's stage (design only, prototype, or production) and the behavior required.

A mail opens with the questions already written out. Just fill in the blanks and send.

Attaching the schematic, PCB design, and datasheets makes the review much faster.

I reply within one to three business days.