使用兩顆esp32實現ESP-NOW 1對1的雙向的通訊程式

兩顆程式一樣，只是MAC 位址不同，需注意。 
可以接收和傳送的程式：

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import network import espnow # 初始化 Wi-Fi 接口為 STA 模式 sta = network.WLAN(network.STA_IF) sta.active(True) # 獲取並顯示 ESP32 的 MAC 地址 mac_address = sta.config('mac') mac_address_readable = ':'.join(['{:02x}'.format(b) for b in mac_address]) print("MAC Address:", mac_address_readable) # 初始化 ESP-NOW esp = espnow.ESPNow() esp.active(True) # 添加另一顆晶片的 MAC 地址 peer_mac = b'\xb0\xa7\x32\xc0\xc6\xbc' # 另一顆晶片的 MAC 地址 esp.add_peer(peer_mac) # 設置一個函數來處理接收到的訊息 def on_recv(peer, msg): if msg: print("Received from {}: {}".format(peer, msg)) if msg == b'end': print("Ending communication") return True return False # 主要的循環來發送和接收訊息 while True: # 傳送訊息 message = b"Hello from ESP-NOW!" esp.send(peer_mac, message) print("Message sent:", message) # 接收訊息 if on_recv(*esp.recv()): break # 如果接收到 'end' 訊息，結束循環 # 稍作延遲以避免過多的傳送 import time time.sleep(1)

執行結果：

MPY: soft reboot

MAC Address: b0:a7:32:c0:c6:70

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'

Message sent: b'Hello from ESP-NOW!'

Received from b'\xb0\xa72\xc0\xc6\xbc': b'Hello from ESP-NOW!'