Case study / Embedded systems
RFID Access Control System
A Raspberry Pi Pico and MicroPython access-control project using RFID input and OLED feedback.
Hardware state machine / RFID
Physical input.
Visible state.
A compact embedded loop from credential detection to OLED feedback.
OLED / STATE 01READY
State 01 / 05Waiting for credential
The device remains ready for physical RFID input.
Overview
What the system is
An embedded access-control prototype that reads RFID credentials and communicates system state through an OLED display.
Capabilities
What it does
- 01RFID inputReads physical credentials through an RFID module.
- 02Device feedbackShows access-control state on an OLED display.