Go to advanced search

by travisfarmer
Fri Jan 01, 2021 6:03 pm
Forum: Other projects
Topic: inventory management scanner
Replies: 2
Views: 188

inventory management scanner

so, i have a large number of electronic parts. spares from various projects, from bulk ebay buys. i ordered one of these: https://www.ebay.com/itm/Trohestar-Nuberopa-N4-PDA-Wireless-Barcode-Scanner-1D-2-4G-Portable-Inventory/233754561711 with the intent to store the inventory info in a spreadsheet, ...
by travisfarmer
Sat Jun 27, 2020 7:26 am
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

Re: idea: replacing a large power hungry rack server, with Rpi computers

Could it be some weird security feature related to AppArmor, SELinux or a user authenticated NFSv4 mount? i did a temporary edit of /etc/passwd to allow user www-data (runs apache2, and owns the files on both the NFS server). then i did a "su" into user www-data, and was able to freely re...
by travisfarmer
Fri Jun 26, 2020 9:17 pm
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

Re: idea: replacing a large power hungry rack server, with Rpi computers

bit of an issue setting up my webserver. i installed apache2 and php7, and setup the NFS mount. apache2 runs as UID 33, GID 33. the folder on my NFS share, on the server the folder containing the data also has the same UID/GID. yet when i try to view my website i get this: http://tjfhome.ddns.net/ i...
by travisfarmer
Fri Jun 26, 2020 5:38 pm
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

Re: idea: replacing a large power hungry rack server, with Rpi computers

RAID on my Dell PE R710 is hardware, via a Dell PERC 6/i. so apparently Smartmontools won't work, it says my SAS drives don't support SMART. (just checked) my "off-site" backup server doesn't currently have the capacity to move the data from my main server so i can convert to RAID6, and i ...
by travisfarmer
Thu Jun 25, 2020 8:17 pm
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

Re: idea: replacing a large power hungry rack server, with Rpi computers

while my Dell that will be running the NFS file server may be a single point of failure, the OS is on two RAID1 drives, and the data is on four RAID5 drives. anything critical is mirrored off-site to a FreeNAS server i have is a secret location ;) (ok, so it is locked in an unattached garage. but &q...
by travisfarmer
Thu Jun 25, 2020 9:03 am
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

Re: idea: replacing a large power hungry rack server, with Rpi computers

it is just a personal website, so file access speed is not as important as say, an enterprise web server. i think my old website used to get maybe 5 - 10 hits a day, not including search engines. not sure a cluster is necessary, though i have never set one up, so i don't know much about them. ya mig...
by travisfarmer
Wed Jun 24, 2020 7:22 pm
Forum: Networking and servers
Topic: idea: replacing a large power hungry rack server, with Rpi computers
Replies: 16
Views: 866

idea: replacing a large power hungry rack server, with Rpi computers

the rack server i was using is a Dell PowerEdge R710. it ran my website (Apache, MariaDB, PHP), my email (Postfix, plus a POP3/IMAP server), and some other stuff that became less important, when it failed after an update (didn't miss them, so i guess i really didn't need them). the major issue with ...
by travisfarmer
Sun Apr 05, 2020 12:43 pm
Forum: Networking and servers
Topic: how to share a network connection on the WiFi, to a device connected to the ethernet port?
Replies: 2
Views: 187

Re: how to share a network connection on the WiFi, to a device connected to the ethernet port?

If the traffic from the device is only going to the Pi and doesn't need to be routed anywhere else, then you don't need to do anything special. The Pi should use the WiFi router for internet connection and to access the local network, and will use the wired connection for the device. All you need i...
by travisfarmer
Sun Apr 05, 2020 12:31 pm
Forum: Networking and servers
Topic: how to share a network connection on the WiFi, to a device connected to the ethernet port?
Replies: 2
Views: 187

how to share a network connection on the WiFi, to a device connected to the ethernet port?

ok, here is the basic scenario of what i want to do. i have a Rpi 3B+ connected to my WiFi in a remote connection. also at this location, i have a single ethernet only device that needs to be connected to the network. i can make a ethernet crossover cable. in thinking... the ethernet only device is ...
by travisfarmer
Thu Apr 02, 2020 7:56 am
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

This summer I'm planning to install a solar powered Pi as a game camera at my camp in Eustis. Next winter should be interesting. Love it there too. let me know how it works out. i get deer feeding in my yard from time to time. a Pi game camera would be neat, if my WiFi reaches that far, that is. ( ...
by travisfarmer
Thu Apr 02, 2020 7:37 am
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

I live in central Maine and have had 6 Pis deployed outside 365 (sometimes 366) days a year, for approx 3 winter seasons. All but one are Pi0Ws, in small Styrofoam boxes with a rectangular hole cut in the bottom, covered by a screen to keep out little heat seeking critters. The other Pi is a 4B4G t...
by travisfarmer
Sun Mar 29, 2020 9:57 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

For the OP...doubt you're going to have a thermal problem with the Pi. You'll be out of spec, so not relying on a given board until you've tested it would be a really good idea. If you can position the Pi so it's on the house-facing side of the generator, it'll probably be a bit warmer than on the ...
by travisfarmer
Sun Mar 29, 2020 9:35 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

not a problem. i admire one to admit when they are wrong. :)

~Travis
by travisfarmer
Sun Mar 29, 2020 9:27 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

google says differently.
https://www.google.com/search?q=-40F+to+c

-40 is the crossover point with F and C.

~Travis
by travisfarmer
Sun Mar 29, 2020 3:15 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

just happened to think... this generator is supplied with a cold weather kit. it has a thermostatically controlled heat mat for the battery, and another wrapped around the oil filter to warm the oil. both are set to turn on at less than 40*F. the oil filter heater i like. as for the battery heater, ...
by travisfarmer
Sun Mar 29, 2020 2:19 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

that would work fine, if the generator ran constantly. ;) it is a standby generator.
though it may be possible to put the Rpi in an insulated box, and install a small low wattage light bulb for heat.

~Travis
by travisfarmer
Sun Mar 29, 2020 1:38 pm
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

could be possible... i looked up the RS-232 specs, and if i use CAT-5 cable, i should be able to reach the house. the advantage being that i don't have to know the Baud rate of the generator Aux port, as the software auto-detects, where the XBEE does not. the Rpi will still have to be powered by the...
by travisfarmer
Sun Mar 29, 2020 11:06 am
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Re: Rpi 3B+: how cold can it still opperate?

ok, thank you. i will proceed with the project, and see what happens.
if worst comes to worst, i could try the XBEE option.

~Travis
by travisfarmer
Sun Mar 29, 2020 10:46 am
Forum: General discussion
Topic: Rpi 3B+: how cold can it still opperate?
Replies: 21
Views: 933

Rpi 3B+: how cold can it still opperate?

i have a 15KW Generac generator, and i will be attaching a Rpi 3B+ to it, running this project on it: https://github.com/jgyates/genmon but as i live in Maine, USA, temps have been known to get down to -40*, and colder. will the Rpi still function? if not, my next thought would be to use an XBEE S1,...
by travisfarmer
Sat Feb 15, 2020 2:52 pm
Forum: Off topic discussion
Topic: Raspberry Pi for saving marriage.
Replies: 47
Views: 7399

Re: Raspberry Pi for saving marriage.

Found this thread, and thought it was literal, but was amused to find it was far from it. quite entertaining. :lol:
ShiftPlusOne wrote: Had to delete a post. Please keep it family friendly.
now i am stuck wondering... ;)

~Travis
by travisfarmer
Sun Jul 21, 2019 7:21 pm
Forum: Raspberry Pi OS
Topic: any way to get Autodesk Eagle on Raspbian?
Replies: 2
Views: 431

Re: any way to get Autodesk Eagle on Raspbian?

Hmm, guess not. oh well, thanks anyway for responding.

~Travis
by travisfarmer
Sun Jul 21, 2019 7:05 pm
Forum: Raspberry Pi OS
Topic: any way to get Autodesk Eagle on Raspbian?
Replies: 2
Views: 431

any way to get Autodesk Eagle on Raspbian?

before my Win10 Laptop died, i used Eagle for all my schematic drawings. i tried the Linux version from Autodesk, but it would not run (file format error). i am currently downloading Fritzing, but i really prefer Eagle.

~Travis
by travisfarmer
Sat Jul 20, 2019 7:26 pm
Forum: Beginners
Topic: (SOLVED) Rpi4B4 - automount SMB file shares, my fstab
Replies: 7
Views: 1846

Re: (SOLVED) Rpi4B4 - automount SMB file shares, my fstab

just setup NFS, tried it and your right, it is easier. Thanks! :D

~Travis
by travisfarmer
Sat Jul 20, 2019 7:00 pm
Forum: Beginners
Topic: (SOLVED) Rpi4B4 - automount SMB file shares, my fstab
Replies: 7
Views: 1846

Re: (SOLVED) Rpi4B4 - automount SMB file shares, my fstab

DougieLawson wrote:
Sat Jul 20, 2019 6:51 pm
What's running on 10.142.174.123? Does that NAS box support NFS shares, because NFS shares are much easier to use with Linux (as they support the full Linux permissions bits for owner, group and world stuff).
FreeNAS-11.2-U5

yes, it seems to support NFS, though i have never used NFS.

~Travis
by travisfarmer
Sat Jul 20, 2019 6:49 pm
Forum: Beginners
Topic: (SOLVED) Rpi4B4 - automount SMB file shares, my fstab
Replies: 7
Views: 1846

Re: Rpi4B4 - automount SMB file shares, my fstab

played around with a few things: proc /proc proc defaults 0 0 /dev/mmcblk0p6 /boot vfat defaults 0 2 /dev/mmcblk0p7 / ext4 defaults,noatime 0 1 # a swapfile is not a swap partition, no line here # use dphys-swapfile swap[on|off] for that //10.142.174.123/travis /shares/smb_travis cifs credentials=/h...

Go to advanced search