updated analysis software

code/l452_code/packet_parser_ble.py

@@ -12,11 +12,15 @@ async def scan():
 
 async def connect(device):
     async with BleakClient(device) as client:
-        value = b'6'
+        await client.write_gatt_char(TX_UUID, b'4', response=True)
-        await client.write_gatt_char(TX_UUID, value, response=True)
+        await client.write_gatt_char(TX_UUID, b'6', response=True)
         await client.stop_notify(RX_UUID)
         await client.start_notify(RX_UUID, cb)
-        await asyncio.sleep(10000)
+        await asyncio.sleep(60)
+        #await client.write_gatt_char(TX_UUID, b'2', response=True)
+        #await client.write_gatt_char(TX_UUID, b'S', response=True)
+        await client.stop_notify(RX_UUID)
+        #await asyncio.sleep(5)
 
 RX_UUID = "00000001-8E22-4541-9D4C-21EDAE82ED19"
 TX_UUID = "00000000-8E22-4541-9D4C-21EDAE82ED19"

code/l452_code/packet_parser_helpers.py

@@ -72,8 +72,9 @@ def process_ppg(d, t):
 
 accs = []
 gyros = []
+imu_sparse = 0
 def process_imu(d, t):
-    global accs, gyros
+    global accs, gyros, imu_sparse
     for e in t['elements']:
         block = d[e['offset']:e['offset'] + e['size']]
         element_size = int(len(block) / e['n_elements'])
@@ -91,13 +92,18 @@ def process_imu(d, t):
                 else:
                     pass
                     #assert False
-            if len(gyros) > 400:
+
-                gyros = gyros[-400:]
+            imu_sparse += 1
-            if len(accs) > 400:
+            if imu_sparse % 5 == 4:
-                accs = accs[-400:]
+                if len(gyros) > 1600:
+                    gyros = gyros[-1600:]
+                    accs = accs[-1600:]
                 fig, axs = plt.subplots(2)
                 g = np.array(gyros)
                 a = np.array(accs)
+                #np.save("gyros.npy", g)
+                #np.save("accs.npy", a)
+                a -= np.mean(a, axis = 0).reshape(1,3)
                 axs[0].set_ylabel("dps")
                 axs[0].plot(g[:,0])
                 axs[0].plot(g[:,1])
@@ -113,36 +119,40 @@ ecgs = []
 t1s = []
 t2s = []
 strains = []
-
+adc_sparse = 0
 def process_adc(d, t):
-    global ecgs, t1s, t2s, strains
+    global ecgs, t1s, t2s, strains, adc_sparse
     for e in t['elements']:
         block = d[e['offset']:e['offset'] + e['size']]
         element_size = int(len(block) / e['n_elements'])
         if e['name'] == b'ekg_readings_cnts[50]':
             ecgs = ecgs + [(2.4 / (1<<24)) * int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(50)]
+            adc_sparse += 1
+            if adc_sparse % 10 == 9:
                 if len(ecgs) > 200:
                     ecgs = ecgs[-2048:]
                     t1s = t1s[-205:]
                     t2s = t2s[-205:]
                     strains = strains[-205:]
-            fig, axs = plt.subplots(4)
+                fig, axs = plt.subplots(1)
-            axs[0].set_title("ECG")
+                axs.set_title("ECG")
-            axs[1].set_title("Strain")
+                #axs[1].set_title("Strain")
-            axs[2].set_title("oT")
+                #axs[2].set_title("oT")
-            axs[3].set_title("iT")
+                #axs[3].set_title("iT")
-            axs[0].plot(ecgs)
+                axs.plot(ecgs)
-            axs[1].plot(strains)
+                #axs[1].plot(strains)
-            axs[2].plot(t1s)
+                #axs[2].plot(t1s)
-            axs[3].plot(t2s)
+                #axs[3].plot(t2s)
+                fig.tight_layout()
                 plt.savefig("adcs.png")
                 plt.close()
         if e['name'] == b'str_readings_cnts[5]':
-            strains = strains + [(2.4 / (1<<24)) * int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
+            strains = strains + [int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
         if e['name'] == b'oT_readings_cnts[5]':
-            t1s = t1s + [(2.4 / (1<<24)) * int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
+            t1s = t1s + [int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
         if e['name'] == b'iT_readings_cnts[5]':
-            t2s = t2s + [(2.4 / (1<<24)) * int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
+            t2s = t2s + [int.from_bytes(block[4 * i : 4 * i + 4], byteorder = 'little', signed = True) for i in range(5)]
+
             
 def read_and_process(types, cons, size):
     index = 0

code/l452_code/packet_parser_log.py

@@ -0,0 +1,16 @@
+from packet_parser_helpers import *
+import time
+
+log = open('first_real.LOG','rb').read()
+
+types = get_type_list(packet_definitions)
+
+index = 493
+while index < len(log):
+    size = int.from_bytes(log[index:index + 4], byteorder = 'little', signed = False)
+    print("INDEX: " + str(index) + " SIZE: " + str(size) + " FILESIZE: " + str(len(log)))
+    cons = log[index + 4 : index + 4 + size]
+    read_and_process(types, cons, size)
+    #time.sleep(0.1)
+
+    index += 4 + size