This is off topic but it might be useful for some people here.
I found this 8 channel TTL GPIO, 6 of which can be analog to digital input for input voltage 0-5V. It costs on $20 but takes a couple of weeks to ship from India. You can use any language that reads/writes from the serial port - I use Ruby.
8 Channel USB GPIO Module With Analog Inputs
I use this for the following: I have a PIR sensor on the road to my driveway. When triggered it sends a signal via radio to a receiver in my house (one of the Dakota series). The receiver has relays are are triggered when the channel is triggered. I use the Normally Open side of the relay. The relay connects to the board above with a series resistor that holds the voltage high. When the relay is triggered the signal goes from high to low. A Ruby program interfaces with the board via a serial port and monitors once a second for when the channel goes low. When it does, it uses JSON to send an external event to BI which then notifies me via email that someone/something is on my driveway. I might use one of the outputs on the board to trigger a doorbell in my basement so if I'm downstairs I can know when something is happening on my driveway.
Again off topic, but I think this is a useful device.
I found this 8 channel TTL GPIO, 6 of which can be analog to digital input for input voltage 0-5V. It costs on $20 but takes a couple of weeks to ship from India. You can use any language that reads/writes from the serial port - I use Ruby.
8 Channel USB GPIO Module With Analog Inputs
I use this for the following: I have a PIR sensor on the road to my driveway. When triggered it sends a signal via radio to a receiver in my house (one of the Dakota series). The receiver has relays are are triggered when the channel is triggered. I use the Normally Open side of the relay. The relay connects to the board above with a series resistor that holds the voltage high. When the relay is triggered the signal goes from high to low. A Ruby program interfaces with the board via a serial port and monitors once a second for when the channel goes low. When it does, it uses JSON to send an external event to BI which then notifies me via email that someone/something is on my driveway. I might use one of the outputs on the board to trigger a doorbell in my basement so if I'm downstairs I can know when something is happening on my driveway.
Again off topic, but I think this is a useful device.
hmjgriffon
Known around here
I was gonna say, that was starting to sound like a Rube Goldberg machine.
So did mine, Thursday, woohoo!
tangent
IPCT Contributor
- May 12, 2016
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Sorry but no.
You don't want to use an analog input device for security sensors. Ideally you use an opto-isolated digital input device... all you need to know is on/off
Wire into a cam with io, an NVR, or a sealevel daq for bi.
analogue input not bad for security sensors if your measuring for an end of line resistor.. but I highly doubt he's doign that and opto isolators are good on anything external.
forgot about sealevel devices, yeah no point at all in all that hodgpodge with those available for a reasonable price given what they do (plug-n-play ethernet gpio)
forgot about sealevel devices, yeah no point at all in all that hodgpodge with those available for a reasonable price given what they do (plug-n-play ethernet gpio)
Thanks j4co. I am going to order the PFB203W. Appreciate confirmation of compatibility and informative post.
Which mount would you recommend for mounting the 5231r-z on the soffit? The facia comes down a few inches so I want to make sure it's below.
qwert106
n3wb
- Dec 5, 2015
- 25
- 7
i had problems with motion detection on the cam. After a lot of testing i think it's a firmware bug on motion detection in cam (Firmware dated 25 Oct 2016). The problem exists if you rotate the picture and/or use mirror-funktion in picture settings. Motion detection 's area is still the same (as without rotate/mirror). i hope you understand what i mean, sorry for my bad english... For example: if i use "mirror" then motion detection on the left side of the image will only trigger if the defined area is on the right side - very strange. Someone else with this problem?
tangent
IPCT Contributor
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So long as the fascia doesn't block the camera's view, probably none you can mount it directly.
hmjgriffon
Known around here
tangent
IPCT Contributor
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Depends on how it's positioned but yeah if it would block or reflect ir you're right you need a box. So for this camera that would be the PFA136
http://www1.dahuasecurity.com/download/Accessory_Selection_201701232.pdf
hmjgriffon
Known around here
or remotely mounted IR with internal turned off.
which from what I hear is the tits lol.
Kawboy12R
Known around here
- Nov 18, 2014
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A 3" fascia board in front of a soffit mounted turret is going to cause problems with internal IR use and probably also block some of the view of the cam, depending on mounting height, angle downward, and lens length. You could try it but I bet a mounting box would greatly improve things. And yes, external IR is the bee's knees.
Ah, I fi-na-lly got the chance to order 5 of the 5321's just now after waiting for stock since early December. I wonder how long they'll take with CNY...
After some deliberation, decided the PFB203W was the correct wall mount. Only 4 in stock! Ugh. Oh well. Ordered them anyway.
Booked yet another flight to Australia where the Dahua NVR is installed, waiting...
After some deliberation, decided the PFB203W was the correct wall mount. Only 4 in stock! Ugh. Oh well. Ordered them anyway.
Booked yet another flight to Australia where the Dahua NVR is installed, waiting...
tangent
IPCT Contributor
- May 12, 2016
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