solar_dashboard.py

import serial
import time
import matplotlib.pyplot as plt
from collections import deque

PORT = "/dev/ttyACM0"
BAUD = 9600

ser = serial.Serial(PORT, BAUD, timeout=1)
time.sleep(2)

max_points = 100
angles = deque(maxlen=max_points)
times = deque(maxlen=max_points)

last_angle = None
stable_count = 0
total_count = 0

plt.style.use("dark_background")

fig, ax = plt.subplots()
fig.canvas.manager.set_window_title("Solar Tracker Dashboard")

ax.set_ylim(20, 160)
ax.set_xlim(0, max_points)

ax.set_ylabel("Servo Angle (degrees)")
ax.set_xlabel("Time (samples)")

ax.axhline(90, linestyle="--", linewidth=1)

(line,) = ax.plot([], [], linewidth=2)

while True:
    try:
        raw = ser.readline().decode(errors="ignore").strip()

        if not raw or raw.count(",") != 2:
            continue

        left, right, angle = map(int, raw.split(","))

        times.append(len(times))
        angles.append(angle)

        if last_angle == angle:
            stable_count += 1
        total_count += 1
        last_angle = angle

        stability = (stable_count / total_count) * 100

        if len(angles) > 1:
            if angles[-1] > angles[-2]:
                direction = "RIGHT"
            elif angles[-1] < angles[-2]:
                direction = "LEFT"
            else:
                direction = "STABLE"
        else:
            direction = "STABLE"

        left_state = "BRIGHT" if left else "DARK"
        right_state = "BRIGHT" if right else "DARK"

        line.set_data(range(len(angles)), angles)
        ax.set_xlim(0, max_points)

        ax.set_title(
            f"Left: {left_state} | Right: {right_state} | "
            f"Angle: {angle}° | Dir: {direction} | "
            f"Stability: {stability:.1f}%"
        )

        plt.pause(0.05)

    except KeyboardInterrupt:
        print("Dashboard closed")
        break