CarOS Arduino Simulation

A car dashboard simulation using Arduino and SimulIDE. This project implements a digital dashboard that displays speed, gear, distance, time, and music information with physical controls for acceleration and music track selection.

Overview

This project simulates a car's dashboard system using:

• Arduino UNO board
• ILI9341 TFT display
• Physical controls (buttons)
• LED indicator
• Buzzer for gear change notifications

Requirements

• SimulIDE - Circuit simulation software
• Arduino IDE
• GCC compiler for the host program
• Required Arduino Libraries:
  • Adafruit_GFX
  • Adafruit_ILI9341
• socat (for virtual serial ports)

Hardware Setup

The simulation includes:

• ILI9341 TFT Display connected to pins:

  • CS: Pin 10
  • DC: Pin 8
  • RST: Pin 9
  • MOSI: Pin 11
  • SCK: Pin 13

• Control buttons:

  • Acceleration: Pin 2
  • Next Track: Pin 5
  • Previous Track: Pin 6
  • LED Indicator: Pin 4

Features

• Real-time speed display (0-180 km/h)
• Automatic gear shifting (Neutral + 6 gears)
• Distance tracking (odometer)
• Current time display
• Music player controls
• Visual and audio feedback for gear changes
• Non-blocking LED notifications

Usage

1. Create virtual serial ports:

socat -d -d PTY,link=/tmp/ttyV0,raw,echo=0 PTY,link=/tmp/ttyV1,raw,echo=0

• Note the two PTY endpoints created
• Update the serial port in main.c with one endpoint
• Configure SimulIDE's serial monitor with the other endpoint

2. Compile and run the host program:

gcc main.c -o carsim -pthread
./carsim

3. Open the simulation in SimulIDE:
   • Load the circuit file
   • Start the simulation
   • The dashboard should now be active and responding to inputs

Building and Running

1. Load the Arduino sketch (sketch_oct6b.ino) to your Arduino board or simulator
2. Export the compiled sketch to firmware and load it in simulIDE
3. Compile the host program:

gcc main.c -o carsim -pthread

3. Run the simulation:

./carsim

Display Layout

The TFT display is organized into several sections:

• Top: Current time
• Left tile: Speed and gear indicator
• Right tile: Distance (odometer)
• Bottom tile: Music information

Communication Protocol

The host program communicates with the Arduino using the following commands:

• TIME|HH:MM:SS - Update time
• SPEED|N - Update speed value
• DIST|N.N - Update distance
• GEAR|N - Update gear (N for neutral, 1-6 for gears)
• MUSIC|trackname - Update music track
• BEEP|1 - Trigger notification

Input Controls

• Hold acceleration button to increase speed
• Release to naturally decelerate
• Press next/previous track buttons to change music
• Gear changes happen automatically based on speed
• Speed ranges for gears:
  • 0 km/h: Neutral
  • 1-19 km/h: 1st gear
  • 20-39 km/h: 2nd gear
  • 40-64 km/h: 3rd gear
  • 65-94 km/h: 4th gear
  • 95-129 km/h: 5th gear
  • 130+ km/h: 6th gear