Konter Print Helper
A utility app for mobile-counter and PPOB owners that extracts e-wallet transaction data with OCR and reformats it into compact, paper-efficient 58mm thermal receipts.
PPOB & Counter Owners
Lead Developer & UI/UX Designer
Ongoing
1 · Lead Developer & Designer
Impact
Sharper receipts
Optimized 58/80mm layouts
Paper
Problem
Printing e-wallet screenshots produced blurry receipts and wasted thermal paper.
Research
Analyzed DANA, GoPay, and SeaBank transaction receipts and the fields cashiers need.
Constraints
Flutter mobile, Bluetooth thermal printers, and Android Share Intent integration.
Solution
ML Kit OCR, automatic parsing, editable receipts, and ESC/POS Bluetooth printing.
Design & Architecture
Used a Method Channel for native Share Intent integration and Provider for lightweight state management.
Development
Product design, Flutter engineering, parser logic, and hardware integration.
Challenges
Maintaining parser accuracy across screenshot formats and Bluetooth printer models.
Lessons Learned
An editable correction step before printing is essential for operational user trust.
Development Path
OCR & Parser Engine
Phase 1ML Kit OCR, automatic field parsing, and editable receipts.
Native & Hardware Integration
Phase 2Android Share Intent, Bluetooth ESC/POS, and 58/80mm layouts.
Stack