同样的代码，我有两个摄像头，一个是openmv4 H7 plus新买的，一个是openmv4 H7 R2旧的。plus摄像头昨天开始能联网，后来就不行了，不知是否IDE更新了摄像头配置, 驱动和网卡匹配反而有问题了？。我开始以为是网卡问题，测试后发现不是。因为旧摄像头能联网。新的plus连ip都找不到了，也不报错，IDE就那样blocking无限期。。。。。。

@kidswong999 变砖问题按提示运行就解决了。可是还是没有WiFi连接

@kidswong999 而且因为找不到openMV，我的openMV就此变砖了

@kidswong999 wifi卡没有问题，我运行相关例子在手机和相关浏览器都能成功传输视频。我就是因为要作为client传给指定rstp指定port视频，而不是用openMV做controller才想用这个remote control例子试试拓展。

openMV4 R2摄像头+WiFi模块。配置和重置都有执行，而且重置完确实红灯亮了又灭了，串口标志闪了一下，wifi标志没有出现过。我再连接的时候告诉我找不到摄像头了

补充一下，我买的是openMV4 H7 R2 Cam

# RTSP Video Server
#
# This example shows off how to stream video over RTSP with your OpenMV Cam.
#
# You can use a program like VLC to view the video stream by connecting to the
# OpenMV Cam's IP address.

import network, omv, rtsp, sensor, time

# RTP MJPEG streaming works using JPEG images produced by the OV2640/OV5640 camera modules.
# Not all programs (e.g. VLC) implement the full JPEG standard for decoding any JPEG image
# in RTP packets. Images JPEG compressed by the OpenMV Cam internally may not display.

# FFPLAY will correctly handle JPEGs produced by OpenMV software.

sensor.reset()

sensor.set_pixformat(sensor.JPEG) # Only supported by the OV2640/OV5640.
sensor.set_framesize(sensor.UXGA)

print("sensor set done")
# Turn off the frame buffer connection to the IDE from the OpenMV Cam side.
#
# This needs to be done when manually compressing jpeg images at higher quality
# so that the OpenMV Cam does not try to stream them to the IDE using a fall back
# mechanism if the JPEG image is too large to fit in the IDE JPEG frame buffer on the OpenMV Cam.

omv.disable_fb(True)

# Setup Network Interface

network_if = network.WLAN(network.STA_IF)
network_if.active(True)
#network_if.connect('your-ssid', 'your-password')

# Setup RTSP Server

server = rtsp.rtsp_server(network_if)

# For the call back functions below:
#
# `pathname` is the name of the stream resource the client wants. You can ignore this if it's not
# needed. Otherwise, you can use it to determine what image object to return. By default the path
# name will be "/".
#
# `session` is random number that will change when a new connection is established. You can use
# session with a dictionary to differentiate different accesses to the same file name.

def setup_callback(pathname, session):
    print("Opening \"%s\" in session %d" % (pathname, session))

def play_callback(pathname, session):
    print("Playing \"%s\" in session %d" % (pathname, session))

def pause_callback(pathname, session): # VLC only pauses locally. This is never called.
    print("Pausing \"%s\" in session %d" % (pathname, session))

def teardown_callback(pathname, session):
    print("Closing \"%s\" in session %d" % (pathname, session))

server.register_setup_cb(setup_callback)
server.register_play_cb(play_callback)
server.register_pause_cb(pause_callback)
server.register_teardown_cb(teardown_callback)

# Track the current FPS.
clock = time.clock()

# Called each time a new frame is needed.
def image_callback(pathname, session):
    clock.tick()
    img = sensor.snapshot()
    # Markup image and/or do various things.
    print(clock.fps())
    return img

# Stream does not return. It will call `image_callback` when it needs to get an image object to send
# to the remote rtsp client connecting to the server.

server.stream(image_callback)

我把print(wlan.ifconfig())注释掉了后，程序能运行到print ('Waiting for connections..') 串口打印出了信息，然后又block了

显示Type "help()" for more information.

Trying to connect... (may take a while)...

Traceback (most recent call last):
File "", line 22, in
Exception: IDE interrupt
MicroPython: v1.18-omv-r13 OpenMV: v4.3.2 HAL: v1.9.0 BOARD: OPENMV4-STM32H743
Type "help()" for more information.

Trying to connect... (may take a while)...

然后就阻塞没有反应了。相应代码如下：

# MJPEG Streaming
#
# This example shows off how to do MJPEG streaming to a FIREFOX webrowser
# Chrome, Firefox and MJpegViewer App on Android have been tested.
# Connect to the IP address/port printed out from ifconfig to view the stream.

import sensor, image, time, network, usocket, sys

SSID ='xyzbalabala'     # Network SSID
KEY  ='12345678'     # Network key
HOST =''     # Use first available interface
PORT = 8080  # Arbitrary non-privileged port

# Reset sensor
sensor.reset()
sensor.set_framesize(sensor.QQVGA)
sensor.set_pixformat(sensor.GRAYSCALE)

# Init wlan module and connect to network
print("Trying to connect... (may take a while)...")
wlan = network.WINC()
wlan.connect(SSID, key=KEY, security=wlan.WPA_PSK)

# We should have a valid IP now via DHCP
print(wlan.ifconfig())

# Create server socket
s = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)

# Bind and listen
s.bind([HOST, PORT])
s.listen(5)

# Set server socket to blocking
s.setblocking(True)

def start_streaming(s):
    print ('Waiting for connections..')
    client, addr = s.accept()
    # set client socket timeout to 2s
    client.settimeout(2.0)
    print ('Connected to ' + addr[0] + ':' + str(addr[1]))

    # Read request from client
    data = client.recv(1024)
    # Should parse client request here

    # Send multipart 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")

    # FPS clock
    clock = time.clock()

    # Start streaming images
    # NOTE: Disable IDE preview to increase streaming FPS.
    while (True):
        clock.tick() # Track elapsed milliseconds between snapshots().
        frame = sensor.snapshot()
        cframe = frame.compressed(quality=35)
        header = "\r\n--openmv\r\n" \
                 "Content-Type: image/jpeg\r\n"\
                 "Content-Length:"+str(cframe.size())+"\r\n\r\n"
        client.send(header)
        client.send(cframe)
        print(clock.fps())

while (True):
    try:
        start_streaming(s)
    except OSError as e:
        print("socket error: ", e)
        #sys.print_exception(e

)

openMV的热点代码运行起来了，但是看不见结果。似乎这个连接总是被connection refuse。Android手机也是一次就遭拒。求解决