import network
import time# 创建WLAN对象
wlan = network.WLAN(network.STA_IF)def scan_and_display_wifi_networks():# 激活接口wlan.active(True)# 扫描附近的WiFi网络networks = wlan.scan()print("可用的WiFi网络：")for i, net in enumerate(networks):ssid = net[0].decode('utf-8')  # 网络名称bssid = ''.join('%02x:' % b for b in net[1])[:-1]  # MAC地址channel = net[2]  # 信道RSSI = net[3]  # 信号强度authmode = net[4]  # 加密方式hidden = net[5]  # 是否隐藏SSID# 将加密方式转换为人类可读的格式auth_modes = ['OPEN', 'WEP', 'WPA-PSK', 'WPA2-PSK', 'WPA/WPA2-PSK', 'WPA2']authmode_str = auth_modes[authmode] if authmode < len(auth_modes) else '未知'# 打印网络信息print(f"{i + 1}: SSID: {ssid}, BSSID: {bssid}, 信道: {channel}, 信号强度: {RSSI}, 加密方式: {authmode_str}, 隐藏: {hidden}")return networksdef connect_to_wifi(max_attempts=10):attempt_count = 0
# ---- 固定wifi -------while not wlan.isconnected() and attempt_count < max_attempts:print(f"尝试连接WiFi... (第 {attempt_count + 1} 次尝试)")wlan.connect('wifi账号', 'wifi密码')# 只支持2.4的wifiattempt_count += 1time.sleep(3)  # 等待3秒后再次尝试连接if wlan.isconnected():print("WiFi连接成功！")print("IP地址:", wlan.ifconfig()[0])mqtt()send_post_request()start_websocket()else:print(f"WiFi连接失败，尝试了 {max_attempts} 次。")
# ---- 固定wifi -------
# ---- 选择wifi -------
# try:
#  selection = int(input("请选择要连接的WiFi网络编号：")) - 1
#  if 0 <= selection < len(networks):
#     ssid = networks[selection][0].decode('utf-8')
#     password = input(f"请输入{ssid}的密码：")
#     wlan.connect(ssid, password)
#    if wlan.isconnected():
#       print("WiFi连接成功！")
#       print("IP地址:", wlan.ifconfig()[0])
#       # 其他方法#   else:
#     print("WiFi连接失败，请检查密码是否正确，并重试。")
#  else:
#       print("选择的网络编号不正确。")
#   except ValueError:
#    print("请输入一个有效的数字。")
# ---- 选择wifi -------def main():while True:networks = scan_and_display_wifi_networks()# 如果扫描到的网络列表不为空，则提示用户选择并连接if networks:print("执行连接。")connect_to_wifi()if wlan.isconnected():break  # 如果连接成功，退出循环else:print("未扫描到可用的WiFi网络。")time.sleep(3)  # 等待1秒后重新扫描和连接if __name__ == "__main__":main()