Cloud-connected building access control device with RTOS

2021 / Matías Bergerman, Pedro Carranza Vélez, Pablo González, Milagros Moutin

This project was made for the course 22.99 - Microprocessor Laboratory, at the Buenos Aires Institute of Technology (ITBA).
Professor: Ing. Daniel Jacoby.

Summary 🔗

This project consists of a small device designed to manage access to a building using magnetic cards and access pins. The main features of this project are:

• The device is controlled using the ARM Cortex microcontroller present in the Freedom-K64F development board.
• The firmware was developed using the μC/OS-III real time operating system.
• All drivers for internal peripherals and external hardware were developed from the ground up.
• The device connects over UART to a desktop computer running a gateway for a ThingSpeak online server which displays device statistics.
• Users can gain access with the use of a magnetic card, or alternatively a pin code which is entered using a rotary encoder.
• The interface consists of 7 segment displays.

All project files can be downloaded from the GitHub repo.

Diagram of the RTOS application developed: