micropython/ports/esp32/modules/espnow.py

31 lines
853 B
Python

# espnow module for MicroPython on ESP32
# MIT license; Copyright (c) 2022 Glenn Moloney @glenn20
from _espnow import *
class ESPNow(ESPNowBase):
# Static buffers for alloc free receipt of messages with ESPNow.irecv().
_data = [None, bytearray(MAX_DATA_LEN)]
_none_tuple = (None, None)
def __init__(self):
super().__init__()
def irecv(self, timeout_ms=None):
n = self.recvinto(self._data, timeout_ms)
return self._data if n else self._none_tuple
def recv(self, timeout_ms=None):
n = self.recvinto(self._data, timeout_ms)
return [bytes(x) for x in self._data] if n else self._none_tuple
def irq(self, callback):
super().irq(callback, self)
def __iter__(self):
return self
def __next__(self):
return self.irecv() # Use alloc free irecv() method