Closed
Description
Hi,
I'm running MicroPython v1.18 on a ESP32-S3 based board (Unexpected Maker TinyS3). I'm using the onboard USB to get a remote REPL.
We're successfully running a firmware on older ESP32 boards and, after moving to the new ESP32-S3, the method bluetooth.active() appears to break the serial connection.
To quickly reproduce the issue:
# main.py
import bluetooth
ble = bluetooth.BLE()
print("Activating BLE...")
ble.active(True)
print("Activated BLE.")Output:
MPY: soft reboot
Activating BLE...
Expected output (from an older ESP32 board):
MPY: soft reboot
Activating BLE...
Activated BLE.
MicroPython v1.18 on 2022-01-17; ESP32 module with ESP32
Type "help()" for more information.
>>>
As you may see, after executing bluetooth.active() the connection hangs. The terminal becomes unresponsive (tried with rshell, picocom, Thonny IDE) and the only way to re-gain the control is to have a sleep statement at the beginning of the script and to hard reset the board.
This was tested at least on the following builds:
Nightly builds
[v1.18-610-gcf7d962cf (2022-06-10) .uf2](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-610-gcf7d962cf.uf2) [[.bin]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-610-gcf7d962cf.bin) [[.elf]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-610-gcf7d962cf.elf) [[.map]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-610-gcf7d962cf.map)
[v1.18-605-gee9feacc0 (2022-06-10) .uf2](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-605-gee9feacc0.uf2) [[.bin]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-605-gee9feacc0.bin) [[.elf]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-605-gee9feacc0.elf) [[.map]](https://micropython.org/resources/firmware/tinys3-20220610-unstable-v1.18-605-gee9feacc0.map)
[v1.18-602-gf63b4f85a (2022-06-09) .uf2](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-602-gf63b4f85a.uf2) [[.bin]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-602-gf63b4f85a.bin) [[.elf]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-602-gf63b4f85a.elf) [[.map]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-602-gf63b4f85a.map)
[v1.18-601-g3452ee58d (2022-06-09) .uf2](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-601-g3452ee58d.uf2) [[.bin]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-601-g3452ee58d.bin) [[.elf]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-601-g3452ee58d.elf) [[.map]](https://micropython.org/resources/firmware/tinys3-20220609-unstable-v1.18-601-g3452ee58d.map)
Firmware which caused the problem
# main.py
import sys
import time
import uasyncio
import bluetooth
from ble_advertising import decode_name
_IRQ_SCAN_RESULT = const(5)
_IRQ_SCAN_DONE = const(6)
async def main_loop():
ble_coro_handle = uasyncio.create_task(ble_coro())
await uasyncio.sleep(5)
async def ble_coro():
ble = bluetooth.BLE()
print("Activating BLE...")
ble.active(True)
print("Activated BLE.")
ble.irq(irq_handler)
try:
ble.gap_scan(0, 30000, 30000)
while True:
await uasyncio.sleep(5)
except uasyncio.CancelledError:
ble.gap_scan(None)
print("ble_coro: task cleaned up")
def irq_handler(self, event, data):
if event == _IRQ_SCAN_RESULT:
addr_type, addr, adv_type, rssi, adv_data = data
device_name = decode_name(adv_data) or 'unknown'
device_rssi = int(rssi)
ts = time.time()
print(f"Found device with name {device_name}, RSSI {device_rssi}, at time {str(ts)}")
elif event == _IRQ_SCAN_DONE:
print("Scan cycle terminated.")
if __name__ == "__main__":
try:
uasyncio.run(main_loop())
except KeyboardInterrupt:
print('Interrupted')
finally:
uasyncio.new_event_loop() # ble_advertising.py
from micropython import const
import struct
_ADV_TYPE_NAME = const(0x09)
def decode_field(payload, adv_type):
i = 0
result = []
while i + 1 < len(payload):
if payload[i + 1] == adv_type:
result.append(payload[i + 2 : i + payload[i] + 1])
i += 1 + payload[i]
return result
def decode_name(payload):
n = decode_field(payload, _ADV_TYPE_NAME)
return str(n[0], "utf-8") if n else ""Thanks for your help.