Static plot added

software/smartwatch.py

 import tkinter as tk
+import matplotlib.pyplot as plt
+import numpy as np
+
 from tkinter import TOP, BOTH, X, LEFT, RIGHT
+from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
 
 class Application(tk.Frame):
     def __init__(self, master=None):
@@ -19,13 +23,22 @@ class Application(tk.Frame):
         self.label_title = tk.Label(self.frame_one, text = "Smart Watch")
         self.label_title.pack(side=LEFT)
 
-    #FRAME 2
+    #FRAME 2 - GRAPH
         self.frame_two = tk.Frame(self.master)
         self.frame_two.pack(fill=X)
 
-        self.label_subtitle_one = tk.Label(self.frame_two, text = "GRAFICO")
-        self.label_subtitle_one.pack(side=LEFT)
-    #TODO Add chart
+        figure = plt.Figure(figsize=(6,5), dpi=100)
+        
+        ax = figure.add_subplot(111)
+        chart_type = FigureCanvasTkAgg(figure, self.frame_two)
+        chart_type.get_tk_widget().pack()
+
+        x = np.arange(10)
+        y = 2.5 * np.sin(x / 20 * np.pi)
+        ax.plot(x, y, color='tab:blue')
+        ax.set_xlim([0, 10])
+        ax.set_ylim([-1, 1])
+        ax.set_title('PPG - RED')
 
     #FRAME 3
         self.frame_three = tk.Frame(self.master)