Ambilight-Clone

• Project name: Ambilight TV Project with Raspberry Pi
• Short description: LED strip installed around a screen that reacts to the colors displayed
• Environment: Raspberry Pi OS (Debian-based)
• Tools: Raspberry Pi, C++, Python
• Institution: FEUP
• Course: ERTS (Embedded and Real Time Systems)
• Project grade: 17.2/20
• Group members:
  • Diogo Miguel Ferreira Rodrigues (dmfrodrigues2000@gmail.com / diogo.rodrigues@fe.up.pt)
  • Maria Aurora Bota (up202111378@edu.fe.up.pt)
  • Rafael Soares Ribeiro (up201806330@fe.up.pt)
  • Xavier Ruivo Pisco (up201806134@edu.fe.up.pt)

Demonstration

Setup

Python

• LED controller library: sudo pip install rpi_ws281x
• POSIX IPC library for named semaphores: sudo pip install posix_ipc

Note for screenreader.c: Make sure $DISPLAY is set to :0 (when running project through ssh, run export DISPLAY=:0 before other programs)

Run

Build project

make

Run each process in a separate terminal

./screenreader.app

./intensity.app

sudo python3 leds.py (must be sudo to write to RaspberryPi's GPIO pins)

Performance

Screenreader

Change NUM_RUNS to the number of screenreads you want, compile with make and run ./screenreader. If ledPrint(); is not commented, comment for more accurate results.

Leds

Change NUM_RUNS to the number of led color change you want to be made, run ./screenreader | sudo python3 leds.py 2>&1. If else: print(colors) is not commented, comment for more accurate results.