could you please help me get the message in main.py? I would like to further use the message I get via ble.
Thank you in advance!
main.py
Code: Select all
from machine import Pin, Timer
from esp32_ble import BLE
ble = BLE("ESP32")
print(ble.get_message())
Code: Select all
from machine import Pin, Timer
from time import sleep_ms
import ubluetooth
class BLE():
def __init__(self, name):
self.name = name
self.ble = ubluetooth.BLE()
self.ble.active(True)
self.led = Pin(2, Pin.OUT)
self.timer1 = Timer(0)
self.timer2 = Timer(1)
self.disconnected()
self.ble.irq(self.ble_irq)
self.register()
self.advertiser()
self.message = ""
def connected(self):
self.timer1.deinit()
self.timer2.deinit()
def disconnected(self):
self.timer1.init(period=1000, mode=Timer.PERIODIC, callback=lambda t: self.led(1))
sleep_ms(200)
self.timer2.init(period=1000, mode=Timer.PERIODIC, callback=lambda t: self.led(0))
def ble_irq(self, event, data):
#global message
if event == 1:
'''Central disconnected'''
self.connected()
self.led(1)
elif event == 2:
'''Central disconnected'''
self.advertiser()
self.disconnected()
elif event == 3:
'''New message received'''
buffer = self.ble.gatts_read(self.rx)
self.message = buffer.decode('UTF-8').strip()
def get_message(self):
return self.message
def register(self):
# Nordic UART Service (NUS)
NUS_UUID = '6E400001-B5A3-F393-E0A9-E50E24DCCA9E'
RX_UUID = '6E400002-B5A3-F393-E0A9-E50E24DCCA9E'
TX_UUID = '6E400003-B5A3-F393-E0A9-E50E24DCCA9E'
BLE_NUS = ubluetooth.UUID(NUS_UUID)
BLE_RX = (ubluetooth.UUID(RX_UUID), ubluetooth.FLAG_WRITE)
BLE_TX = (ubluetooth.UUID(TX_UUID), ubluetooth.FLAG_NOTIFY)
BLE_UART = (BLE_NUS, (BLE_TX, BLE_RX,))
SERVICES = (BLE_UART, )
((self.tx, self.rx,), ) = self.ble.gatts_register_services(SERVICES)
def send(self, data):
self.ble.gatts_notify(0, self.tx, data + '\n')
def advertiser(self):
name = bytes(self.name, 'UTF-8')
self.ble.gap_advertise(100, bytearray('\x02\x01\x02') + bytearray((len(name) + 1, 0x09)) + name)