Automated Medicine Dispenser
A QR-driven dispensing system that reduces medication errors and ensures timely delivery in clinics, pharmacies, and home care.
01The Problem
Medication errors are a leading cause of preventable harm in healthcare. Wrong dosages, missed doses, or incorrect medications harm patients — especially the elderly managing multiple prescriptions at home, or busy pharmacy counters dispensing hundreds of prescriptions daily.
Manual dispensing is slow, error-prone, and requires constant attention. The goal was to build something simple, reliable, and affordable.
02The Approach
I designed a QR-based dispensing system where each prescription gets a unique QR code containing patient info, medication, and dosage. The dispenser reads the QR, identifies the correct medicine compartment, and delivers the exact dose via servo-controlled gates.
- QR code scanning for prescription verification
- Servo motor control for individual compartment dispensing
- LED + buzzer feedback for successful dispense events
- Tamper-resistant compartments to prevent misuse
- Optional logging for caregivers / pharmacists to audit usage
03How It Works
The user scans a QR code printed on their prescription (or shown on a phone). The microcontroller parses the QR, validates it against the loaded medication map, then commands the correct servo to release exactly one dose. The display confirms the action.
For multi-medication setups, the system queues doses and handles them sequentially with safe timing gaps to prevent jamming.