import network
import espnow
import select

# A WLAN interface must be active to send()/recv()
ap = network.WLAN(network.AP_IF)
ap.active(True)
ap.disconnect()   # Because ESP8266 auto-connects to last Access Point

ap_mac = ap.config('mac')
print(ap_mac)
print(ubinascii.hexlify(ap_mac))

e = espnow.ESPNow()
e.active(True)

poll = select.poll()
poll.register(e, select.POLLIN)
poll.poll(0)

while True:
    for event in poll.poll(0) :
        if event[0] == e: 
            host, msg = e.recv()
            if msg:             # msg == None if timeout in recv()
                print(host, msg)