Showing posts with label WiFi. Show all posts
Showing posts with label WiFi. Show all posts

Wednesday, March 18, 2020

Answer: I'm having trouble with my WiFi security camera and need help/advice.

WiFi cams are just not reliable. Anyone that tells you diff is just not monitoring them that close. I work from home and have 4 dedicated monitors plus automation monitoring my systems which makes it painfully clear to me when a camera (and a lot of other devices) are having an issue.

But maybe they / you don't really care. Maybe you just want something simple that works most of the time. That is a legit opinion too. Not everyone wants much less needs solid coverage but if you do, read on. 

Better WiFi might help but not solve it

It is important to note it is not just WiFi strength. My level WiFi coverage of 10 AP is extreme for the few acres I'm covering but to align all my cams I need solid WiFi for my tablets over a good bit of my property plus I have a fair number of non cam devices that require WiFi like weather monitoring, irrigation and even some remote smart plugs and lights where Z-wave and ZigBee are not practical.
Note there actually 3 more APs besides the 10 shown here. An Ethernet Over Power at the gate and another at the creek side plus one on a separate test network

Then there is interference 

With interference on the rise from neighbors WiFi and other devices, multiple APs are becoming common and pretty much guarantees at least a few dropped frames from lost packets. Even out here on the edge of town. Here is an example of some of the APs in my logs of neighboring APs from just just one day of the cars passing by over 200 feet from the nearest AP of mine.

Some cams will stick to a channel or an even an AP till restarted. 

From my personal experience with multiple models of cams from over a dozen brands, if, for one of a multitude of reasons, they lose connection for a second they might:

  • Wait for THAT AP to be reachable again. 
  • Switch to the nearest AP on that channel even if the signal is too weak to be usable. You can work around this one a bit if your network supports min RSSI.
  • Not even notice the disconnect for X amount of time
  • I've even seen the occasional reboot though it is hard to say which was the cause and which the effect there.
Rarely is it anything close to a quick automatic reconnect.

But does it matter?

Granted in most cases we are just talking a few short outages which you might never notice if you you were not sitting in front of the consoles or checking the footage. Note too that depending on your NVR software and settings WiFi issues, might manifest as low frame rate or hung video for awhile before disconnects get long enough to get an offline indication on a console much less a notification. A few dropped frames may not seem like a big deal but if you are trying to get a usable shot of a face or plate it could mean everything.

The WiFi range of cameras varies wildly too. 

Off the same AP and the same time I've have had WiFi cameras "work" 200 feet away while others could not connect 50 feet down the same line of sight. The Wyze cams are so bad about dropping offline I have scripts for repower them via smart plugs if they are offline more than a couple minutes.

But if you really must

Sometimes WiFi really is the only practical option but if you are talking security find some way to use a wired cam even if it means Ethernet Over Power or point to point wireless. If WiFi is your only option I strongly recommend putting them on smart plugs and setting up scripts to restart them as needed.

Plus this

Then there is the whole other discussion on recording 24/7 vs on motion much less only to the cloud when the camera having the issue is battery powered and or recording to the cloud such as Ring, Nest, Wyze, Arlo ect.

Wednesday, July 4, 2018

Wyze Cam Pan 1080p Pan/Tilt/Zoom Camera and V2

Wyze Cam Pan 1080p Pan/Tilt/Zoom Wi-Fi Indoor Smart Home Camera with Night Vision and 2-Way Audio

Setup was easy.







The password would be filled in above but see below.



No the QR code will not work even on my network since the password was blanked.



However when I went to check the video a week later for some samples to post and it had quit recording after a day. The camera was still tracking movement just not recording to the cloud. I had not put an SD in yet so there was nothing to check there. So I deleted the camera from the app, reset the cam and did a readd. But it would not connect. I wasted hours trying stuff. Finally I tried setting up a wide open Access Point (AP) and noticed the password was still filled in. I removed it and it connected. Repowered and it still reconnected so I wiped it all and readded to the secured guest network and it still works. While I was at it I stuck a 32 GB SD in it.



So far it looks like it is running just under 1 Mbps bandwidth. Their specs recommend 1.5




So far the main drawbacks are:


  • Only records to SD or the cloud
  • Only saves triggered video. No 24/7
  • You can only view video from the phone app (no web viewing).
  • No easy way to change WiFi password.
  • Some suspicious network activity has been reported so only use on a guest or other isolated network.
  • The above also probably means you should think twice about putting the app on and phone or tablet that has sensitive info on it.




Pluses:


  • Free 7 days of cloud recording.
  • Ridiculously cheap at just $38 including shipping.
  • Seems to do an OK  job of tracking (by doing pan and tilt) and marking moving object in the video. (See videos below.) Note people have reported being creeped out by this and have to admit it does feel a bit weird and makes the camera seem a bit alive. I was actually surprised how little video was saved vs the amount of time the cam appears to be panning to look at things.
  • Can save / send video to a huge number of services
  • Alexa support just added.







I posted some sample videos on YouTube with the motion and sound detection at the default values and motion detection masked to around the dog door. Unfortunately I can not really show you the mask because when you go back in to modify the mask it only shows till the video kicks in and then defaults back to the whole screen.







Basically it is top to bottom from the wall socket to the edge of the window.



Main things to note here are how random the video is. It was triggered by noise way more than motion.




Lastly connecting the cam is slow and fails fair amount. Being an encrypted guest network might be a factor in that though as mentioned above I would definitely suggest isolating from your network like that.


Since the cam does not record 24/7, if this was my only cam in there I would be thinking of taking off the mask and cranking the sensitivity. Though that would probably make finding video of actual motion harder to find. As is I already have 2 cameras recording 24/7 in there to me it is mainly another motion detector and hopefully gets a close up of who is using the door should I need to know. If they made an outdoor version of this I'd definitely have a spot for it and would probably recommend at double the price. Would think about a couple for the barn if I could monitor on a local PC since most of my cams are to let me see what is going on (as in what has the dogs upset) with as little distraction / time wasted as possible. Having to open an app, connect to a cam and find a notification just does not do that. To notify you with a video if something is moving where there should be no motion it is not bad. Especially for the price.




Update: 8/11/2018 More issues.


Found these instructions online for using Tiny cam to bridge the cam to the local NVR. They did not work for me. Might be some sort of manual firewall config though. Note they seem to connect to the server not the cam directly so you might be burning as much down bandwidth as up using them. When you test your connection it says it is receiving something but dropping all frames even if you point it at an address that does not respond which is either misleading or something else is going on.



However, trying to debug first I checked the regular app and it could not connect either till I rebooted the cam. Even after rebooting the cam it kept dropping out. So that might be an issue too. Oddly there are plenty of recordings which would seem to indicate the stream is getting to the cloud.



On a whim I tried connecting with the Amazon Show. But it now seems to think my one cam is two cams with the same name and will not connect to I rename one.



Update 11/22/2018: Got Tinycam to link to Blue Iris


Note I started with Pro version this time. Not sure if that was a factor in it working this time. 


Note when selecting Wyze and the cam type cloud is the only protocol available despite what the pics in the instructions sem to show. Then in Blue Iris setup your video config like this

Blue Iris video config window

The host and port come from the Tinycam app as mentioned in the instructions. Note the capital I in cameraId. 

The value can be found be pulling up the live view of the camera in a browser. The first screen you see when you point your browser to the Tinycam web server is the status / maint screen.

Tinycam status and maintenance page


Click on the All Cameras button and you get something like this.
Tinycam view all cameras page
Click the fullscreen icon
Full screen button pic
on one of the cameras and the cameraId for it is the end of the URL (Highlighted with yellow rectangle in pic.)

Tinycam single camera view page


This should get you connected however for for me:

  • The first cam, the pan version, connected fine but second, a V2, was iffy getting to show in the phone interface, web interface and never did connect to Blue Iris while I was sorting all this. I did move the V2 closer to the AP though and it started working so it might be a WiFi issue. Especially then coupled with its failure to connect in the driveway.
  • The Samsung Note 4 I was running Tinycam Pro on got hot and the drain on the battery even with the display turned off was high enough the battery ran out after s few hours. After recharging the phone, only running the Tinycam app, removing it from the case and placing it across a pyrex bowl to maximize air flow I got it to run overnight without overheating or the battery going dead.
  • Lastly it appears Tinycam is pulling from the cloud service which means you will be buring double the external bandwidth that would only be local with a camera with ONVIF or RSTP support.
Update 1/17/2019: After shutting down about everything else on the phone (does not even have sim) and only connecting to one Wyze camera. I noticed Tinycam was offline and when I checked it this is what the phone looked like. Probably lucky it did not burst into flame.
I put in a new battery and placed a temperature monitor with alarm on it. So far it seems OK but keeping a close eye on it. Here is a chart of the temp of the phone vs the room it is in.


In the load chart below it appears there is an upload of around 7-9 Mbps from the 2 cams. There is of course other stuff going on which spikes the upload to 20 Mbps or more and the download  is an almost constant 40 Mbps. But again in the dips is a matching 7-9 Mbps load.
OPNsense traffic report page

Here is a shot of the Tinycam stats screen the second day showing a bit on improvement over the day before.
Tinycam status info

After a couple days of up and downs I can't say I recommend Tinycam as a bridge or a constant view solution. Though at least some of the problems are probably Wyze related. I had both cams working for awhile the cameras seemed to take turns being offline. I tired installing on Bluestacks which seemed to have similar viewing issues and as far as I can see, no way to make the web server part of Tinycam accessible outside of Bluestacks. I also tried it on my new LG G Pad 2 a lot more powerful than the Note 4. Unfortunately the best I could do was get one camera to connect. I should note here too even the Wyze app was having issues talking to the cams despite signal levels of up to -26 db (99%). In fact I saw more issues with the cam with the stronger signal.


The last thing to try is OpenIPC Firmware for Wyze Cameras 

It is basically rooting the camera to convert it to a simple WiFi camera. It is open source and appears to be a simple SD card install. 

Note "Set up Wifi in the SD card config folder wpa_supplicant.conf" in the instructions means rename wpa_supplicant.conf.dist to wpa_supplicant.conf then edit it to change SSID and such to match your WiFi network.

ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=0
ap_scan=1

network={
        ssid="SSID"
        # Uncomment to connect to Hidden SSIDs
        #scan_ssid=1 
        key_mgmt=WPA-PSK
        pairwise=CCMP TKIP
        group=CCMP TKIP WEP104 WEP40
        psk="PW"
        priority=2

}

However once I did this the camera would no longer connect to WiFi. Seems this is a known issue.   After some research on Raspberry Pi blogs I found some dos that said priority=2 is only if you have more than one WiFi you use. removing it seems to have solved it.

I also discovered the demo.bin file is a boot loader altered to look at the SD so you really only have to mess with the holding the button bit the one time. I should also note the OpenIPC version has all the logging stripped out of run.sh so when things go wrong it is impossible to know what happened. So added some back similar to what was in the Dafang hacks and a couple things of my own in mine to help sort things.

CONFIGPATH=/system/sdcard/config
LOGDIR="/system/sdcard/log"
LOGPATH="$LOGDIR/startup.log"
if [ ! -d $LOGDIR ]; then
  mkdir -p $LOGDIR
fi
echo "==================================================" >> $LOGPATH
echo "Starting OpenIPC" >> $LOGPATH
echo "==================================================" >> $LOGPATH

## Update hostname:
hostname -F $CONFIGPATH/hostname.conf

## Load kernel modules
insmod /driver/tx-isp.ko isp_clk=100000000
##insmod /driver/sensor_imx323.ko
insmod /driver/sensor_jxf22.ko
##insmod /driver/sensor_ps5230.ko
insmod /driver/exfat.ko
insmod /driver/sample_motor.ko
insmod /driver/audio.ko spk_gpio=-1 sign_mode=0
insmod /driver/sinfo.ko
##insmod /driver/8189es.ko
insmod /driver/sample_pwm_core.ko
insmod /driver/sample_pwm_hal.ko
insmod /driver/rtl8189ftv.ko
##insmod /system/sdcard/driver/sensor_jxf22.ko data_interface=2 pwdn_gpio=-1 res                                                                    et_gpio=18 sensor_gpio_func=0

## Fix IR:
echo 63 > /sys/class/gpio/export
echo out > "/sys/class/gpio/gpio25/direction"
echo out > /sys/class/gpio/gpio63/direction
echo 1 > /sys/class/gpio/gpio63/value


## Start Wifi:
echo Start Wifi: >> $LOGPATH
wpa_supplicant -D nl80211 -iwlan0 -c $CONFIGPATH/wpa_supplicant.conf -B &
sleep 5
wpa_supplicant_status="$(wpa_cli status)"
echo "wpa_supplicant: $wpa_supplicant_status" >> $LOGPATH

#udhcpc -i wlan0 -s /system/etc/udhcpc.script -q
udhcpc -i wlan0 -p /var/run/udhcpc.pid -b -x hostname:"$(hostname)"  >> $LOGPATH 2>&1

## NTP Server
echo Start ntpd: >> $LOGPATH
ntp_srv="$(cat "$CONFIGPATH/ntp_srv.conf")"
/system/sdcard/bin/busybox ntpd -q -n -p "$ntp_srv" # run ntp update  >> $LOGPATH 2>&1

## Start FTP & SSH
echo Start FTP-SSH: >> $LOGPATH
/system/sdcard/bin/dropbearmulti dropbear -R  >> $LOGPATH 2>&1
/system/sdcard/bin/bftpd -d  >> $LOGPATH 2>&1

## Start Webserver:
echo Start Webserver: >> $LOGPATH
/system/sdcard/bin/boa -c /system/sdcard/config/  >> $LOGPATH 2>&1

## Autostart
for i in /system/sdcard/config/autostart/*; do
echo Start $i: >> $LOGPATH
  $i  >> $LOGPATH 2>&1

done

On the plus side if all else fails just powering it up without the SD card seems to set it back to where it was when first set it up with your config intact.

Working with Blue Iris

If you got the OpenIPC working OK then to get Blue Iris to use it you need a video config like this


The password is ismart12
Note you need to type in the Video Path and change the RTSP port.
I have not fully tested it yet but it seems like many of the controls do not actually work and or go back to defaults after reboots.
Other I've noticed so far
Time seems to ignore timezone and shows UTC
The video stream seems to be 720p no matter what the value Manage->Setting->Resolution are set to.
Manage->Setting->Display debug info on OSD look useful
Bumping the cam seems to be too much motion for it to deal with,

CPU is really cranking and the cams seems to be running hotter than it did before the new firmware.
Motion detection does not seem to actually doing anything till you configure it and then only puts a dot in the upper right corner

It is hard to say how much CPU motion detection is using but given I've seen it hit 100% it does not seem to be worth the overhead.

Lastly night vision does not seem to be working right. Setting Manage->Setting->RTSP->Night Vision to On seems to flip it into night vision mode for a second then it flips back even when it is too dark to see anything unless you turn off IR Cut first. There might a set of clicks that get this working but this would seem to indicate it is not planned to be fixed.
So with the IR Cut on my hall at night with just the light from the bath room looks like this from the Wyze V2.
For comparison here to the view from the kennel looking back the other way.
If I turn off the IR Cut you can see a lot more
Which really is not that bad other than the tint. If I turn the lights on in the hall it is not enough to mask the tint though it should be bright enough in the daytime.
Was about to give up on this for the night when I went though the process one last time and this time there was no tint. This it the options I ended up with.
And here is the working night shot.

Update 4/29/2019 Wyze adds RTSP support.
Tried it on my Pan and was as easy as and similar to the OpenIPC SD card style upgrade though with less needed config.  Details here. So far seems like everything else looks the same. Given how hard OpenIPC drives the V2 I figured something would have to go. If the cam does not fry from the load I'll be impressed. By the next morning the case was still cooler than the V2 running OpenIPC. I did notice bumping the cam when I felt the case seemed to freak out the tracking for a bit causing the cam to bounce back and forth for a while. Had to stick my hand in front of it to give it a simple view to calm it down.

Update 5/18/2019 Wyze RTSP definately better than the OpenIPC firmware.
Bottom line, I bought another V2 to try this on after the Pan and was impressed enough to get another and convert the V2 I had OpenIPC on to the Wyze RTSP firmware.

Caveats:


On the plus side.

  • Both the V2 and Pan are supported where OpenIPC sort of does.
  • The camera runs somewhat cooler
  • I'm not seeing the pixel distortions (see above) anymore. 
  • You retain all the Wyze features including the output resolution, working day/night switch and rectangles around motion.

Reliability of the stream seems unchanged. I've gone to just putting them on Etekcity plugs and having my home automation system repower them if they are offline for more than a few minutes to workaround that. Still all and all it tough to beat for $25 and $38. Especially when you get 3 way storage. On the SD card, 24/7 stream to NVR and alerts to the cloud. That should insure you always know what happened.