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Show HN: Echo Show – RaspberryPi Security Camera

sammachin.com

11–20 of 23 posts

Re: Show HN: Echo Show – RaspberryPi Security Camera

#12
Bit offtopic but still worth mentioning for future reference is that when you count seconds out loud, start from 21.

What it does is this ensures the numbers are closer to 1 second duration because the amount of time it takes to mention the 2-3 syllables whereas the early ones { 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 } are merely 1 syllable.

Why 21 and not 13? Its an easy to remember number (just add 20 to your starting count), and the second part of the number is still accurate.

Don't believe me? Feel free to verify with a stopwatch.

I learned this from driving lessons in NL. Based on some quick translation abracadabra it seems to equally apply to English.

(NB: To be precise, 9 would be 2 syllables in Dutch while its only 1 syllable in English. Other languages will vary!)

Re: Show HN: Echo Show – RaspberryPi Security Camera

#13
post #12

Bit offtopic but still worth mentioning for future reference is that when you count seconds out loud, start from 21. What it does is this ensures the numbers are closer to 1 second duration because the amount of time it takes to mention the 2-3 syllables whereas the early ones { 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 } are merely 1 syllable. Why 21 and not 13? Its an easy to remember number (just add 20 to your starting coun…

I count 1001, 1002 and so on.

Re: Show HN: Echo Show – RaspberryPi Security Camera

#14
I've toyed around with a couple of these for use as baby cams -- mostly streaming the video feed over RTSP using VLC as the server. The video feed always works well, but I've never been able to get the audio from a usb mic to transmit using this method. The last time I googled about the topic, it didn't look like anyone else had had much success adding audio to the stream.

Does anyone know of any RaspberryPi projects that have succefully integrated audio into the video feed?

Re: Show HN: Echo Show – RaspberryPi Security Camera

#15
post #14

I've toyed around with a couple of these for use as baby cams -- mostly streaming the video feed over RTSP using VLC as the server. The video feed always works well, but I've never been able to get the audio from a usb mic to transmit using this method. The last time I googled about the topic, it didn't look like anyone else had had much success adding audio to the stream. Does anyone know of any RaspberryPi projects…

I assume audio was included on a "Pi for WebRTC", but both audio and video may have come from an attached webcam rather than separate sources:

https://news.ycombinator.com/item?id=14788060

"we managed to get something smooth working with UV4L"

https://www.raspberrypi.org/forums/viewtopic.php?t=132658

https://www.linux-projects.org/uv4l/installation/

Re: Show HN: Echo Show – RaspberryPi Security Camera

#16
post #12

Bit offtopic but still worth mentioning for future reference is that when you count seconds out loud, start from 21. What it does is this ensures the numbers are closer to 1 second duration because the amount of time it takes to mention the 2-3 syllables whereas the early ones { 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 } are merely 1 syllable. Why 21 and not 13? Its an easy to remember number (just add 20 to your starting coun…

I count 1001, 1002 and so on.

Works as well, and 1000 might be an easier modifier than 20 in some situations.

Downside is there's going to be a difference in elapsed time between { 1001, 1002, 1003, 1004, 1005, 1006, 1008, 1009, 1010, 1012 } and 1013+.

Regardless, better than conventional { 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 }.

Re: Show HN: Echo Show – RaspberryPi Security Camera

#17
I set up an RPI camera without any of the echo stuff: https://blog.thekyel.com/?anchor=motion

It was fairly easy, but there were a few gotchas. It does a pretty good job, but I do get some false-positives with changes in light.

Now that I see this project, I really need to put a video together showing how mine works....

Re: Show HN: Echo Show – RaspberryPi Security Camera

#18
post #12

Bit offtopic but still worth mentioning for future reference is that when you count seconds out loud, start from 21. What it does is this ensures the numbers are closer to 1 second duration because the amount of time it takes to mention the 2-3 syllables whereas the early ones { 1, 2, 3, 4, 5, 6, 8, 9, 10, 12 } are merely 1 syllable. Why 21 and not 13? Its an easy to remember number (just add 20 to your starting coun…

Twenty n is a new one on me, it was always n thousand in my hide and seek days, but it seems there are so many variations - n hundred, one thousand and n, n Mississippi etc. - with such a wide range in length of modifier, each spoken with its corresponding degree of rapidity, that I wonder if it's more a case of tapping into an instinctive feel for the length of a second, with the modifier word just helping focus the mind on the matter.

Re: Show HN: Echo Show – RaspberryPi Security Camera

#19
post #4

I've been using MotionEyeOS for several months now. I setup a a couple of Pi3's with some cheap Logitech USB webcams. Works great from inside the house - I used velcro to tape the cameras pointing out from various windows around the house and in the garage. https://github.com/ccrisan/motioneyeos I am looking for something that will work outside and has night vision though.

Hey, I've recently been working on a similar project [1] to setup cameras on Pis with cheap USB webcams. However, I had repeated issues with Logitech cams causing the Pis to crash. Thanks for this link to MotionEyeOs, I'm going to see if this allows me to get some use from those cameras as well. (I had fallen back to using some HP and generic USB cameras).

Regarding your quest for a camera that will work outside and has night vision, I mention it in my little write-up, but an amazon search for "elp dome camera" should turn up a handful of USB webcams with IR illumination and an outdoor enclosure. I've had one on my outdoor balcony for about 6 weeks now without issue.

[1] http://moonbench.xyz/projects/pi-camera-network

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