49 lines
1.1 KiB
Python
49 lines
1.1 KiB
Python
import network,time,board
|
|
from machine import UART
|
|
import time
|
|
|
|
def wifi_init(RX_Pin,TX_Pin):
|
|
board.register(TX_Pin,board.FPIOA.UART2_TX)
|
|
board.register(RX_Pin,board.FPIOA.UART2_RX)
|
|
|
|
uart = UART(UART.UART2,115200,timeout=1000, read_buf_len=1024*16)
|
|
T1=time.ticks_ms()
|
|
while True:
|
|
tmp=uart.read()
|
|
if tmp:
|
|
if tmp.endswith("OK\r\n"):
|
|
break
|
|
else:
|
|
uart.write("AT+RST\r\n")
|
|
time.sleep_ms(20)
|
|
if time.ticks_diff(time.ticks_ms(), T1) >2000:
|
|
raise AttributeError("ESP-AT not connected or needs to be reset")
|
|
try:
|
|
nic = network.ESP8285(uart)
|
|
time.sleep(1)
|
|
print("ESP-AT OK")
|
|
return nic
|
|
except Exception:
|
|
raise AttributeError("ESP-AT Connection Failed")
|
|
|
|
|
|
def wifi_deal_ap_info(info):
|
|
res = []
|
|
for ap_str in info:
|
|
ap_str = ap_str.split(",")
|
|
info_one = []
|
|
for node in ap_str:
|
|
if node.startswith('"'):
|
|
info_one.append(node[1:-1])
|
|
else:
|
|
info_one.append(int(node))
|
|
res.append(info_one)
|
|
return res
|
|
|
|
def scans(nic):
|
|
ap_info = nic.scan()
|
|
ap_info = wifi_deal_ap_info(ap_info)
|
|
ap_info.sort(key=lambda x:x[2], reverse=True)
|
|
return ap_info
|
|
|