It's my first post and I am new to ESP32µpython.
I am using ESP32 to build a bluetooth network recently, but I cannot get any response from _IRQ_SCAN_RESULT.
The first method is this:
Code: Select all
from micropython import const
import ubluetooth
ble=ubluetooth.BLE()
if ble.active()== False:
ble.active(True)
print(ble.active())
_IRQ_SCAN_RESULT = const(1 << 4)
_IRQ_SCAN_COMPLETE = const(1 << 5)
def adv_decode(adv_type, data):
i = 0
while i + 1 < len(data):
if data[i + 1] == adv_type:
return data[i + 2:i + data[i] + 1]
i += 1 + data[i]
return None
def adv_decode_name(data):
n = adv_decode(0x09, data)
if n:
return n.decode('utf-8')
return data
def bt_irq(event, data):
if event == _IRQ_SCAN_RESULT:
# A single scan result.
addr_type, addr, connectable, rssi, adv_data = data
print(addr_type, addr, adv_decode_name(adv_data))
elif event == _IRQ_SCAN_COMPLETE:
# Scan duration finished or manually stopped.
print('scan complete')
ble.irq(handler=bt_irq)
# Scan for 10s (at 100% duty cycle)
ble.gap_scan(10000, 30000, 30000)
The second option is the following:
Code: Select all
import ubluetooth
import utime
from micropython import const
_IRQ_CENTRAL_CONNECT = const(1 << 0)
_IRQ_CENTRAL_DISCONNECT = const(1 << 1)
_IRQ_GATTS_WRITE = const(1 << 2)
_IRQ_GATTS_READ_REQUEST = const(1 << 3)
_IRQ_SCAN_RESULT = const(1 << 4)
_IRQ_SCAN_COMPLETE = const(1 << 5)
_IRQ_PERIPHERAL_CONNECT = const(1 << 6)
_IRQ_PERIPHERAL_DISCONNECT = const(1 << 7)
_IRQ_GATTC_SERVICE_RESULT = const(1 << 8)
_IRQ_GATTC_CHARACTERISTIC_RESULT = const(1 << 9)
_IRQ_GATTC_DESCRIPTOR_RESULT = const(1 << 10)
_IRQ_GATTC_READ_RESULT = const(1 << 11)
_IRQ_GATTC_WRITE_STATUS = const(1 << 12)
_IRQ_GATTC_NOTIFY = const(1 << 13)
_IRQ_GATTC_INDICATE = const(1 << 14)
ble=ubluetooth.BLE()
if ble.active()== False:
ble.active(True)
print(ble.active())
def form_mac_address(addr: bytes) -> str:
return ":".join('{:02x}'.format(b) for b in addr)
print("BLE current mac address: {}".format(form_mac_address(ble.config("mac"))))
def bt_irq(event, data):
if event == _IRQ_CENTRAL_CONNECT:
# A central has connected to this peripheral.
conn_handle, addr_type, addr = data
elif event == _IRQ_CENTRAL_DISCONNECT:
# A central has disconnected from this peripheral.
conn_handle, addr_type, addr = data
elif event == _IRQ_GATTS_WRITE:
# A central has written to this characteristic or descriptor.
conn_handle, attr_handle = data
elif event == _IRQ_GATTS_READ_REQUEST:
# A central has issued a read. Note: this is a hard IRQ.
# Return None to deny the read.
# Note: This event is not supported on ESP32.
conn_handle, attr_handle = data
elif event == _IRQ_SCAN_RESULT:
# A single scan result.
addr_type, addr, connectable, rssi, adv_data = data
print('type:{} addr:{} rssi:{} data:{}'.format(addr_type, ubinascii.hexlify(addr), rssi, ubinascii.hexlify(adv_data)))
elif event == _IRQ_SCAN_COMPLETE:
# Scan duration finished or manually stopped.
pass
elif event == _IRQ_PERIPHERAL_CONNECT:
# A successful gap_connect().
conn_handle, addr_type, addr = data
elif event == _IRQ_PERIPHERAL_DISCONNECT:
# Connected peripheral has disconnected.
conn_handle, addr_type, addr = data
elif event == _IRQ_GATTC_SERVICE_RESULT:
# Called for each service found by gattc_discover_services().
conn_handle, start_handle, end_handle, uuid = data
elif event == _IRQ_GATTC_CHARACTERISTIC_RESULT:
# Called for each characteristic found by gattc_discover_services().
conn_handle, def_handle, value_handle, properties, uuid = data
elif event == _IRQ_GATTC_DESCRIPTOR_RESULT:
# Called for each descriptor found by gattc_discover_descriptors().
conn_handle, dsc_handle, uuid = data
elif event == _IRQ_GATTC_READ_RESULT:
# A gattc_read() has completed.
conn_handle, value_handle, char_data = data
elif event == _IRQ_GATTC_WRITE_STATUS:
# A gattc_write() has completed.
conn_handle, value_handle, status = data
elif event == _IRQ_GATTC_NOTIFY:
# A peripheral has sent a notify request.
conn_handle, value_handle, notify_data = data
elif event == _IRQ_GATTC_INDICATE:
# A peripheral has sent an indicate request.
conn_handle, value_handle, notify_data = data
ble.irq(bt_irq)
ble.gap_scan(20000)Please any help or suggestion is highly appreciated.
Thanks a lot,
Pluvio.
