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# Simple test of a ESPnow server and client transferring data.
# This test works with ESP32 or ESP8266 as server or client.
try:
import network
import espnow
except ImportError:
print("SKIP")
raise SystemExit
# Set read timeout to 5 seconds
timeout_ms = 5000
default_pmk = b"MicroPyth0nRules"
def init(sta_active=True, ap_active=False):
wlans = [network.WLAN(i) for i in [network.WLAN.IF_STA, network.WLAN.IF_AP]]
e = espnow.ESPNow()
e.active(True)
e.set_pmk(default_pmk)
wlans[0].active(sta_active)
wlans[1].active(ap_active)
wlans[0].disconnect() # Force esp8266 STA interface to disconnect from AP
e.set_pmk(default_pmk)
return e
# Server
def instance0():
e = init(True, False)
multitest.globals(PEERS=[network.WLAN(i).config("mac") for i in (0, 1)])
multitest.next()
peer, msg1 = e.recv(timeout_ms)
if msg1 is None:
print("e.recv({timeout_ms}): Timeout waiting for message.")
e.active(False)
return
print(bytes(msg1))
msg2 = b"server to client"
e.add_peer(peer)
e.send(peer, msg2)
print(bytes(msg2))
e.active(False)
# Client
def instance1():
e = init(True, False)
multitest.next()
peer = PEERS[0]
e.add_peer(peer)
msg1 = b"client to server"
e.send(peer, msg1)
print(bytes(msg1))
peer2, msg2 = e.recv(timeout_ms)
print(bytes(msg2))
e.active(False)
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