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scan_bluetooth: Display "last seen in sec." and fix timeout #73

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Merged
ThomasFarstrike merged 1 commit into from
Mar 4, 2026
Merged

scan_bluetooth: Display "last seen in sec." and fix timeout #73

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17 changes: 15 additions & 2 deletions internal_filesystem/apps/com.micropythonos.scan_bluetooth/assets/scan_bluetooth.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@
https://docs.micropython.org/en/latest/library/bluetooth.html
"""

import time

try:
import bluetooth
except ImportError: # Linux test runner may not provide bluetooth module
Expand Down Expand Up @@ -90,14 +92,15 @@ def onCreate(self):
set_cell_value(
self.table,
row=0,
values=("pos", "MAC", "RSSI", "count", "Name"),
values=("pos", "MAC", "RSSI", "last", "count", "Name"),
)
set_dynamic_column_widths(self.table)

self.scan_count = 0
self.mac2column = {}
self.mac2counts = {}
self.mac2name = {}
self.mac2last_seen = {}

self.ble = bluetooth.BLE()

Expand All @@ -112,7 +115,7 @@ async def ble_scan(self):
while self.scanning:
print(f"async scan for {SCAN_DURATION_MS}ms...")
self.ble.gap_scan(SCAN_DURATION_MS, INTERVAL_US, WINDOW_US, True)
await TaskManager.sleep_ms(SCAN_DURATION_MS + 100)
await TaskManager.sleep_ms(SCAN_DURATION_MS + 500)

def onResume(self, screen):
super().onResume(screen)
Expand All @@ -139,12 +142,20 @@ def onPause(self, screen):
self.ble.active(False)
self.info("BLE deactivated")

def update_last_seen(self):
current_time = int(time.time())
for addr, last_seen in self.mac2last_seen.items():
last_seen_sec = int(current_time - last_seen)
column_index = self.mac2column[addr]
self.table.set_cell_value(column_index, 3, f"{last_seen_sec}s")

def ble_irq_handler(self, event: int, data: tuple) -> None:
try:
if event == _IRQ_SCAN_RESULT:
addr_type, addr, adv_type, rssi, adv_data = data
addr = ":".join(f"{b:02x}" for b in addr)
print(f"{addr=} {rssi=} {len(adv_data)=}")
self.mac2last_seen[addr] = int(time.time())
if name := decode_name(adv_data):
self.mac2name[addr] = name
else:
Expand All @@ -164,11 +175,13 @@ def ble_irq_handler(self, event: int, data: tuple) -> None:
str(column_index),
addr,
f"{rssi} dBm",
'0s', # Last seen since 0 sec ;)
str(self.mac2counts[addr]),
name,
),
)
elif event == _IRQ_SCAN_DONE:
self.update_last_seen()
set_dynamic_column_widths(self.table)
self.scan_count += 1
self.info(
Expand Down
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