tag:blogger.com,1999:blog-7203640512649941007.post5972985162512385573..comments2024-03-26T21:35:24.521+00:00Comments on NestBoxTech: Wireless access point bird boxNestBoxTechhttp://www.blogger.com/profile/17596961979586589583noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-7203640512649941007.post-34023944759170935322018-03-29T23:47:50.688+01:002018-03-29T23:47:50.688+01:00booted, and rebooted and rebooted etc etcbooted, and rebooted and rebooted etc etcNestBoxTechhttps://www.blogger.com/profile/17596961979586589583noreply@blogger.comtag:blogger.com,1999:blog-7203640512649941007.post-17279300725992844552018-03-19T09:52:13.343+00:002018-03-19T09:52:13.343+00:00The 5V problem seems odd (did the Pi even boot?) b...The 5V problem seems odd (did the Pi even boot?) but I think the revised configuration (48V>12V>5V) will prove more satisfactory.SteveDeehttps://www.blogger.com/profile/10645378028590228663noreply@blogger.comtag:blogger.com,1999:blog-7203640512649941007.post-3425396403394967652018-03-18T17:02:32.177+00:002018-03-18T17:02:32.177+00:00so, after testing a 'satellite' box with 4...so, after testing a 'satellite' box with 4m speaker cable... it does not work at 5v. Interestingly, there is no measurable voltage drop from 5.14V over that cable, but no joy. I changed it so that it goes as follows: House (50m, 48v) -> junction box (drop to 12v) -> satellite box (4m test, 12v) then drop 12v to 5v using a recom r-78b5.0 1.5 converter. This works, not clear why given that I cant demonstrate a voltage drop when trying 5v over speaker cable. I suspect its my choice of cable, since the WAP box works fine over a couple of meters of ethernet at 5v transmission. A bit of a pain, as it adds a bit more complexity at £10 extra cost per satellite box. NestBoxTechhttps://www.blogger.com/profile/17596961979586589583noreply@blogger.comtag:blogger.com,1999:blog-7203640512649941007.post-39758274389947452532018-03-16T10:58:45.065+00:002018-03-16T10:58:45.065+00:00Absolutely brilliant! And I look forward to seeing...Absolutely brilliant! And I look forward to seeing lots of video from you this year.<br /><br />Re: 5V supply to PiZero's: I would suggest you check the actual voltage at each Pi using a DVM, with 30m cable & using worst case conditions (e.g. lights on, streaming, remote pc displaying stream). Could you run 48V instead of 5V and then drop to 5V? I guess most of the common regulators may not stand a 48V input voltage.<br /><br />Re: choppy video: I'd suggest checking the WiFi data rates; from PiZero back to WAP, and from WAP back to house pc. Take a look at my post: https://captainbodgit.blogspot.co.uk/2015/07/some-thoughts-on-wifi-coverage.html<br /><br />You may also need to consider the mounting and orientation of boxes and PiZeros within the box (e.g. if a box is on a tree trunk, facing away from the WAP, its signal may be attenuated by the tree trunk).<br /><br />Good luck, its an interesting project.SteveDeehttps://www.blogger.com/profile/10645378028590228663noreply@blogger.com