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by Barabba
Sun Aug 25, 2019 6:58 pm
Forum: Beginners
Topic: How to access SSH when under private IP
Replies: 5
Views: 243

Re: How to access SSH when under private IP

Thnak you for answer, it is impossible to configure port forwarding because the internet provider gacves me a 10.* IP on the WAN of the router, they have private IP address in their network to save public IP addresses, May kindly suggest a solution about my questions, an SSH bridge (or how to setup ...
by Barabba
Sat Aug 24, 2019 2:20 pm
Forum: Beginners
Topic: How to access SSH when under private IP
Replies: 5
Views: 243

How to access SSH when under private IP

Hi everyone, I'm reading around for solutions but I would discuss with you about the possibilities. Im my case I have: a Raspberry3 with and internet connection with private IP 10.* a reachable PC connected to internet by public IP winning Win7, that can be used as a server my laptop connected to in...
by Barabba
Mon May 06, 2019 10:22 pm
Forum: Troubleshooting
Topic: Are 52° celsius safe for RB3 too keep it work forever?
Replies: 4
Views: 340

Re: Are 52° celsius safe for RB3 too keep it work forever?

Thank you for your kind answer! yes the case looks really good, my problem is almost the GPIO flat cable, but I guess it's possible to manage it. Anyway if you tell me that with 52° will not suffer of unstability or premature dead.. I can also leave it like that.. May someone report how long they ke...
by Barabba
Mon May 06, 2019 1:12 pm
Forum: Troubleshooting
Topic: When SD get frozen, experts needed
Replies: 2
Views: 296

Re: When SD get frozen, experts needed

Thank you for your kind answer! Well, I'm not sure that Watchdog will reset the SD too, can you confirm that? Is a watchdog hard reset take off power to SD? Or is the system send a reset command to SD? I'm pretty sure that with sudo reboot the SD isn't initialized, or at least will not "reset" it en...
by Barabba
Fri May 03, 2019 6:58 pm
Forum: Troubleshooting
Topic: When SD get frozen, experts needed
Replies: 2
Views: 296

When SD get frozen, experts needed

Hi mates, thank you for reading this and suggesting solutions. I've several questions about it, I'll try to make shorter as possible. I've a RB3, it was running only Node Red with very low CPU consumption 2-5%, with 58-59° CPU temperature and SD Samsung 16GB. Few RAM usage, and log2RAM to limit the ...
by Barabba
Fri May 03, 2019 5:37 pm
Forum: Troubleshooting
Topic: Are 52° celsius safe for RB3 too keep it work forever?
Replies: 4
Views: 340

Are 52° celsius safe for RB3 too keep it work forever?

Hi mates, I?m using RB3 only for Node Red and Teamviewer (no USB attached, 5,15 volt power), usually the load is very low, maybe 2 to 5%, I've tried to open some holes in the cover so I lower from 59° to 52° now. Is it to consider safe temperature to a long life? I don't want to add a fan cause in t...
by Barabba
Fri May 03, 2019 5:28 pm
Forum: Troubleshooting
Topic: Undervoltage with a 3A power brick
Replies: 5
Views: 288

Re: Undervoltage with a 3A power brick

Hi, I can report my experience here, usually power blocks have poor section of wires bringing power to micro usb, the power supply can be good and really output 3A without dropping voltage under 5V, but even one meter of cable with not adeguate section can lose 0,1 maybe 0,2 volt on peaks of current...
by Barabba
Mon Apr 22, 2019 2:18 pm
Forum: Advanced users
Topic: (Is this) The correct ways to install the watchdog package?
Replies: 46
Views: 60428

Re: Is this the correct way to install the watchdog package?

Hi everyone, I've some questions here, I hope someone can answer. Ok I active watchdog, if nothing is "polling" it before 10 seconds (for example) it wil restart the Raspberry, once is active who does this? Supposing nothing is doing it the Raspberry will kkep rebooting forever. Now.. it's clear som...
by Barabba
Sat Apr 20, 2019 3:21 pm
Forum: Beginners
Topic: RPi3B+ and watchdog...
Replies: 14
Views: 10346

Re: RPi3B+ and watchdog...

SOmebody else told to do that:
In /boot/config.txt add/change:

watchdog=on

In /etc/systemd/systemd.conf, change #RuntimeWatchdogSec= to:

RuntimeWatchdogSec=10s

so what config file should be changed?
by Barabba
Sat Apr 20, 2019 3:17 pm
Forum: Beginners
Topic: RPi3B+ and watchdog...
Replies: 14
Views: 10346

Re: RPi3B+ and watchdog...

Hi mates, I?ve some questions too, sorry I'm a newbie here.. thanks for support So I'll write this to console: modprobe bcm2835_wdt echo "bcm2835_wdt" | sudo tee -a /etc/modules apt-get install watchdog update-rc.d watchdog defaults 1) question: I read somewhere the watchdog service is already insta...
by Barabba
Mon Apr 15, 2019 8:16 am
Forum: General discussion
Topic: Understand unstability of Rasberry3
Replies: 8
Views: 549

Re: Understand unstability of Rasberry3

It happened again, after about one week.. as usual I guess, TCP stopped working, no more SSH, telnet, Node Red, etc. I don't know how this can come from. Node Red was keep working (I mean, it can read and write to I2C bus, and responsive), but log2RAM stop working as well (I guess it from syslog on ...
by Barabba
Thu Apr 04, 2019 9:26 pm
Forum: General discussion
Topic: Understand unstability of Rasberry3
Replies: 8
Views: 549

Re: Understand unstability of Rasberry3

thank you for kind answers, doesyour script write at sometime the log files to SD? I don't want to loose them after a reboot/shutdown/power loss.. not completely at least.. The solution I described make a dump every hour, useful, but I've noticed there still new entries on syslog file, before the ho...
by Barabba
Thu Apr 04, 2019 9:20 pm
Forum: Troubleshooting
Topic: NTP synchronized: no
Replies: 2
Views: 366

Re: NTP synchronized: no

recently I updated the Raspbian (previous version was from november, if I remember right, not that old..) and now I have 3 "yes" after reboot, so seems it's updating to NTP and this is updating RTC too.. as it should be
by Barabba
Thu Apr 04, 2019 6:45 pm
Forum: General discussion
Topic: Understand unstability of Rasberry3
Replies: 8
Views: 549

Re: Understand unstability of Rasberry3

Thank you mates for the kind replies, well as I explained in the topic here: https://www.raspberrypi.org/forums/viewtopic.php?f=63&t=234114&p=1451564#p1451564 I rebuilt yesterday the power supplier, I dedicate a DC/DC based on another chip (5 A) to RB3, added capacitor, sold a new cable 2x0,75 to th...
by Barabba
Thu Apr 04, 2019 6:30 pm
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Re: Under-voltage detected! Which is the maximum power voltage for Raspb3?

Well, I've seen that in RB1 there is only fuse, but on RB2 there is also a mosfet to check inverse polarity, I couldn't find the scheme of RB3 to understand better. Well I dedicated a DC/DC (based now on XL4015, instead of other before lm2596) only for RB3 with a condenser of 10.000uF at output, and...
by Barabba
Tue Apr 02, 2019 6:25 pm
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Re: Under-voltage detected! Which is the maximum power voltage for Raspb3?

I noticed that with 5,32v input I have 5,07 volt on Gpio.. maybe a bit of voltage drop on cable, but maybe something drops also inside RB on the power management stage
by Barabba
Tue Apr 02, 2019 10:03 am
Forum: General discussion
Topic: Understand unstability of Rasberry3
Replies: 8
Views: 549

Understand unstability of Rasberry3

Hi mates, I would try to get from your experience a sensation, lookign for a concrete/real answer is hard with few elements, but you know better than me how kernel works and where I should look deeper to solve it. I have RB3, with Raspbian updated, powered by DC/DC 3A from 12v to 5,32v (+ a 10.000uF...
by Barabba
Tue Apr 02, 2019 9:03 am
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Re: Under-voltage detected! Which is the maximum power voltage for Raspb3?

Hi, thanks for keping posting here, No I don't have *any* USB connected to it, but I have some I2C hardware conncted to the GPIO connector, this hardware should not drain much current, especially when no buttons are pressed and not pullup resististors are grounded. Ther are 2 16lines I/0, 2 16libes ...
by Barabba
Thu Mar 21, 2019 9:21 pm
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Re: Under-voltage detected! Which is the maximum power voltage for Raspb3?

I would report you my experience, I turned it to 5,25 volt, the amount of low voltages was really reduced, I tested it for some hours and I had only one event, to avoid it I turned to 5,32v and now after many days I had no logs about it. ANyway I decided to enforce the size of the main powerline, I'...
by Barabba
Wed Mar 13, 2019 12:47 am
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Re: Under-voltage detected! Which is the maximum power voltage for Raspb3?

Thank you mates, interesting topic! Well, no USB devices on it, raspberry is used for Node Red only, it detects undervoltage every 3-7 minutes, so also when its cpu is close to idle.. that doesn't have sense.. I also installed a capacitor of 10.000uF on DC/DC output to suppress current peaks.. if th...
by Barabba
Wed Feb 20, 2019 6:14 pm
Forum: General discussion
Topic: Under-voltage detected! Which is the maximum power voltage for Raspb3?
Replies: 11
Views: 859

Under-voltage detected! Which is the maximum power voltage for Raspb3?

Hi mates I've put the DC/DC converter (3Amper + 10.000uF at output) to 5.05volt to power up Raspberry 3, but seems it's not enough, about 3 to 7 minutes I've this warning on syslog. It looks I've to rise a bit the voltage, which can be the right one to don't exceed? Maybe 5,3volt?
Thank you
by Barabba
Mon Jan 14, 2019 11:17 am
Forum: Troubleshooting
Topic: NTP synchronized: no
Replies: 2
Views: 366

Re: NTP synchronized: no

I kindly ask some help, thank you
by Barabba
Thu Jan 10, 2019 1:06 am
Forum: Troubleshooting
Topic: NTP synchronized: no
Replies: 2
Views: 366

NTP synchronized: no

Hi, I try to explain my problem as short as possible, thank you for kind help: I've RasPI3 with RTC on I2C bus, I would like it consider it as default clock and use NTP (if internet available) every X hours to update RTC. It seems to be a quite hard work and sicerely I don't understand why Raspbian ...
by Barabba
Wed Aug 03, 2016 4:23 pm
Forum: Automation, sensing and robotics
Topic: Drive laser projector by ILDA (LaserBoy) with DMX control
Replies: 0
Views: 863

Drive laser projector by ILDA (LaserBoy) with DMX control

Hi everyone! I'm glad to annunce a new project, that allows laser fans to drive with bunch of $ a professional laser remotely using ILD files, avoiding spend 200-600$ DACs and software on market. It's based on something already existing, Laserboy as main software running on Raspberry, cheap DAC with...

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