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  1. E

    Help with Alarm I/O Wires

    You may connect it either way. In my case, it was a matter of cabling availability (only three, power and trigger) at the end point
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    Help with Alarm I/O Wires

    Just check my notes. Yes, the yellow cable is at the same potential as the green, actually both at 0 volts (ground). It would be the same as bring the green cable to either yellow or green. TonyR is better suited for your application, in which you may used the camera 12v (if available), while...
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    Help with Alarm I/O Wires

    not sure if I answered your question in the above post. A drawing could help
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    Help with Alarm I/O Wires

    I understand you need the constant 12V for power, while the Green is for triggering. Not sure about the yellow cable. I installed a similar bell at an office front desk, using only the green cable (plus power). It was a long time, but I could check my notes. If you have an ohm-meter, check for...
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    Help with Alarm I/O Wires

  6. E

    Help with Alarm I/O Wires

    You want your ding-dong to activate during an event? The alarm IN/OUT are dry-contacts. Normally the alarm ground is for the input side, while the alarm common is for the output side. If you have an ohm-meter, better confirm, but the output could be “floating” to comply with your particular...
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    Help finding a floodlight ethernet / non-wifi camera

    an ip camera with relay output will be a better solution, imo. Adding an extra relay (normally is 10amps a/c or dc), you may control different spot lights (for controlling that particular camera output). You may event start a remote sequence, by controlling other intelligent switches via Shelly...
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    Let's see what today holds

    or probably they will recommend you to install cameras around the city. Let me know, I may go and help you!
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    Recommendation for good/cheap mini camera?

    Only the 1080 model. If you only need the boards + lens mount (no metal case), same CamHi app US $30.91 8％ Off | 1/2.8" 8.0MP IMX415 Sensor Mini WIFI 3G 4K 4G Camera Network Kamera Module 8MP 5MP 2MP IP Camera CCTV Video Audio Camhi https://a.aliexpress.com/_mNUrTfO
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    Recommendation for good/cheap mini camera?

    Tested for special applications, good performance. The CamHi app works fine. https://m.aliexpress.com/i/32821868088.html
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    EzViz CS-CV206 - Method to get around device being attached to account? (Will pay for resolution)

    I’m giving up with mine. It’s a matter of security adopted by Ezviz. After exchanging several “back-and-forth” emails with useless technical support, ended up using my “Ezpiss” as a magnetic paper clip. That was a couple of years ago. Promise myself to never buy an Ezviz again
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    Best microcontroller camera? (Raspberry pi, Arduino etc...)

    “Cell phones emit low levels of radio frequency energy, a type of non-ionizing radiation. The available scientific data on exposure to radio frequency energy show no categorical proof of any adverse biological effects other than tissue heating.” Nov 3, 2022...
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    POE Floodlight/Camera Recommendation?

    Following CanCuba recommendations, why not building your own lamps around a junction box, installed in the soffit? Using three 7” spot lights will cover enough area, while you may mount your camera in the bottom if needed. I recommend at least 2-Amps power supply for the lamps. Just to show you...
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    Camera on a condominium terrace for 50m surveillance

    for such an extension of days, then better go with surveillance. Keep us informed of your project. Good luck!
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    Camera on a condominium terrace for 50m surveillance

    Unless you got your car parked for a long time, the average power consumption (idle) is between .25~.50 A/h
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    Camera on a condominium terrace for 50m surveillance

    The advantage of having a camera inside your car (dual facing front/back), for sure will provide better visual id than using a camera from your balcony. It will be better if the camera allows for recording directly to your NVR. But the Ring wifi mode (no subscription), will only allow recording...
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    Camera on a condominium terrace for 50m surveillance

    These are designated car parking spaces. But, unless you live in an industrial park, avoid the semi-trailers
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    Camera on a condominium terrace for 50m surveillance

    Our residential complex (HOA) will not allow installing cameras (privacy matters). I live in a condo as well, but my car is only 25m from my parking spot. Regarding your car, at that distance of 50m, your objective is obtaining evidence in case someone hits your car, or getting as-well...
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    Car Door Checker...

    You’re welcome. Of course, let me know if you need additional information. If your plan is using a thin brushed metal, it will be easier than my plastic PVC box. The wider plastic, specially after drilling the small hole for the lens (drill #1), will produce a “tunel” effect in the image...
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    Best microcontroller camera? (Raspberry pi, Arduino etc...)

    maybe that's why I forget so many things…but wait, I'm turning 65
  21. E

    Car Door Checker...

    Unfortunately, I did not took photos of the project. But basically is the same approach I used on spy cams. The cameras used come in two styles, with a metal body/bracket, and a bare mounted board. In my previous warehouse installation, the camera metal bracket was “glued” to the plastic box...
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    Car Door Checker...

    Nice project. In a previous installation, I used a surface mount 4”x4” PVC weatherproof box to include two side-by-side pinhole board cameras. It was for a commercial warehouse application, but It will look funny for residential. To disguise the purpose of installing a pvc box at the main...
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    Car Door Checker...

    Interesting project. What type of enclosure you plan to use in order to accommodate the pinhole lenses in opposite directions? Are you planning to include both in a single case (back-to-back)?
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    Peep hole camera

    the following is Onvif compliant camera, no experience with this particular item US $38.50 30％ Off | V380 Door Eye Hole Security 1080P HD 1.7mm Lens Wide Angle FishEye CCTV Network Mini Peephole Door WifI Camera P2P ONVIF https://a.aliexpress.com/_mLQYqa8
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    Peephole Camera: Any recommendations?

    Consider the power requirements for the camera. Installed one before for a customer (purchased by himself). Since the unit will be wifi, the battery power consumption is an important factor to consider. In my case, it was a 5Vdc unit (micro-USB), and since the door was near a wall, close to an...
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    Microphone input wiring question and Bluetooth receiver for DS-2CD2147G2-SU

    if your getting audio-out from the camera mic (at the NVR side), is a matter of switching the ip camera settings to line-in. As Flintstone61 graphics, my experience is mostly with Dahua products, but same should apply to Hik as well. I am not sure if you means not able to access the camera web...
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    Think twice before you walk into a hotel room

    with micro-technology advancing and cheaper cam prices, not to mention over sex bombarding, worth checking the room surroundings https://www.cyberghostvpn.com/en_US/privacyhub/how-to-find-hidden-cameras/amp/
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    Wall mounts for Dahua turrets: PFB 203/4/5 Are they downward compatible?

    Is basically different hole pattern configurations between cameras plate mounts. Just as Flintstone61 suggested, if specific mount is not available, I usually “tap and drill bit” new holes for the included M4 screws (3)...
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    Microphone input wiring question and Bluetooth receiver for DS-2CD2147G2-SU

    Not sure if you want to sacrifice (cut) the RCA or the BT connector. Cutting will be an easier task, especially for experimenting. The bare cables will connect perfectly to the camera block. Since all your connectors are stereo, while the camera is mono, you only need ground and signal...
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    Microphone input wiring question and Bluetooth receiver for DS-2CD2147G2-SU

    no experience with hik cams, but normally you need to switch (settings) between the cam built-in microphone, or the line-input (shown connector). There should include volume levels to adjust as well (cam settings). Since your plan is to use the BT receiver as the line-input, why you need to use...
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