使用ESP-NOW协议

import espnow

import ubinascii
import network

wlan_sta = network.WLAN(network.STA_IF)
wlan_sta.active(True)
wlan_mac = wlan_sta.config('mac')
print(ubinascii.hexlify(wlan_mac).decode())

import network
import espnow
import time

sta = network.WLAN(network.STA_IF)    # Enable station mode for ESP
sta.active(True)
sta.disconnect()        # Disconnect from last connected WiFi SSID

e = espnow.ESPNow()     # Enable ESP-NOW
e.active(True)

peer1 = b'\xe8\x68\xe7\x4e\xbb\x19'   # MAC address of peer1's wifi interface
e.add_peer(peer1)                     # add peer1 (receiver1)

peer2 = b'\x60\x01\x94\x5a\x9c\xf0'   # MAC address of peer2's wifi interface
e.add_peer(peer2)                     # add peer2 (receiver2)

print("Starting...")            # Send to all peers

e.send(peer1, "walk", True)     # send commands to pear 1
e.send(peer2, "walk", True)     # send commands to pear 2
time.sleep_ms(2000)
e.send(peer1, "walk", True)
e.send(peer2, "back", True)
time.sleep_ms(2000)

import network
import espnow
from machine import UART

def espnow_rx():
    #config UART
    uart = UART(0, baudrate=115200)

    # A WLAN interface must be active to send()/recv()
    sta = network.WLAN(network.STA_IF)
    sta.active(True)
    sta.disconnect()                # Disconnect from last connected WiFi SSID

    e = espnow.ESPNow()                  # Enable ESP-NOW
    e.active(True)

    peer = b'\x5c\xcf\x7f\xf0\x06\xda'   # MAC address of peer's wifi interface
    e.add_peer(peer)                     # Sender's MAC registration

    while True:
        host, msg = e.recv()
        if msg:                          # wait for message
            if msg == b'walk':           # decode message and translate
                uart.write("kwkF")       # to the NyBoard's command
            elif msg == b'back':
                uart.write('kbk')
            elif msg == b'stop':
                uart.write('d')

if __name__ == "__main__":
    espnow_rx()