连接外界WiFi传输数据时这个的报错是什么意思，应该如何解决？
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MJPEG Streaming with FIR
这个例子展示了如何将MJPEG流式传输到FIREFOX浏览器（IE和Chrome不起作用）。只需输入您的网络SSID和KEY，然后连接到从ifconfig输出的IP地址/端口。
import sensor, image, network, usocket, fir
SSID='Xiaomi_37E6_5G' # Network SSID
KEY='03201435' # Network key
HOST = '192.168.191.2' # 使用第一个可用的端口
PORT = 8000 # 任意非特权端口重置传感器
sensor.reset()
设置传感器的设置
sensor.set_contrast(1)
sensor.set_brightness(1)
sensor.set_saturation(1)
sensor.set_gainceiling(16)
sensor.set_framesize(sensor.QQVGA)
sensor.set_pixformat(sensor.RGB565)初始化热成像传感器
fir.init()
初始化wlan模块并连接到网络
print("Trying to connect... (may take a while)...")
wlan = network.WINC()
wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)我们现在通过DHCP应该有一个有效的IP
print(wlan.ifconfig())
创建服务器套接字
s = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)
绑定和监听
s.bind((HOST, PORT))
s.listen(5)将超时设置为1秒
s.settimeout(1.0)
print ('Waiting for connections..')
client, addr = s.accept()
print ('Connected to ' + addr[0] + ':' + str(addr[1]))从客户端读取请求
data = client.recv(1024)
应该在这里解析客户端请求
发送多部分header
client.send("HTTP/1.1 200 OK\r\n"
"Server: OpenMV\r\n"
"Content-Type: multipart/x-mixed-replace;boundary=openmv\r\n"
"Cache-Control: no-cache\r\n"
"Pragma: no-cache\r\n\r\n")开始流媒体图像
while (True):
image = sensor.snapshot()# 捕获FIR数据 # ta: Ambient temperature 环境温度 # ir: Object temperatures (IR array) 物体温度（IR阵列） # to_min: Minimum object temperature 最小物体温度 # to_max: Maximum object temperature 最大物体温度 ta, ir, to_min, to_max = fir.read_ir() # 缩放图像并使用framebuffer对其进行融合 fir.draw_ir(image, ir) # 绘制环境温度、最小温度和最大温度。 image.draw_string(0, 0, "Ta: %0.2f"%ta, color = (0xFF, 0x00, 0x00)) image.draw_string(0, 8, "To min: %0.2f"%to_min, color = (0xFF, 0x00, 0x00)) image.draw_string(0, 16, "To max: %0.2f"%to_max, color = (0xFF, 0x00, 0x00)) cimage = image.compressed(quality=90) client.send("\r\n--openmv\r\n" \ "Content-Type: image/jpeg\r\n"\ "Content-Length:"+str(cimage.size())+"\r\n\r\n") client.send(cimage)client.close()
报错内容：
Trying to connect... (may take a while)...
Running in Station mode...
[0, 0, '', 'f8:f0:05:aa:90:8d', '0.0.0.0']Traceback (most recent call last):
File "", line 25, in
OSError: -2
MicroPython v1.9.4-4548-g24c934f79 on 2019-03-23; OPENMV4 with STM32H743
Type "help()" for more information.
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