receiver test

receiver.py

@@ -0,0 +1,21 @@
+import send_test_data
+import json
+import matplotlib.pyplot as plt
+import numpy as np
+
+data_store = []
+data_buffer = []
+times = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20]
+
+for data in send_test_data.data_test_forever():
+    currentdata = json.loads(data)
+    data_store.append(currentdata["V"])
+    data_buffer = data_store[-20:]
+
+    # draw graph
+    fig, ax = plt.subplots()
+    ax.plot(times[:len(data_buffer)], data_buffer)
+    plt.xticks(np.arange(1, 21, 1))
+    plt.yticks(np.arange(0, 257, 32))
+    plt.show()
+    plt.close()