Go to advanced search

by nachiketh
Wed Sep 05, 2018 5:31 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Can you tell us what the 27v power supply is feeding. If I read it correctly it also power the other motherboard directly? And are there any kind of inductive (aka motor) or ? Ok so here are the output rating of the SMPS: Rated voltage Vout DC 24 V Total tolerance, static ± 3 % Static mains compens...
by nachiketh
Wed Sep 05, 2018 4:56 am
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Yes and also there's another motherboard board drawing power from the same source as mine, and that's not got affected. I'm unable to arrive at a conclusion as to what might have caused this and fried the pi. Is the 'another motherboard' also a Pi? The other motherboard is an Intel base board If no...
by nachiketh
Tue Sep 04, 2018 7:38 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Did the step-down providing 5V survive that ? Nope that's blown too. Was the power connected through the microUSB connector or via the GPIO connector? It's connected via the microUSB In either case it might be difficult to determine cause and effect of the two faults, but a step-down fault that app...
by nachiketh
Tue Sep 04, 2018 7:22 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Okay, can I also ask what for kind of 27V SMPS are you using. And did he survive? Because, it looks like the 5V supply didn't survive it and the 27V did get straight to you Rpi. I'm collecting this information as that's a 3rd party supplier, will probably have this information in a day or two. And ...
by nachiketh
Tue Sep 04, 2018 6:56 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

I'm guessing it's got something to do with a power surge happening when the power transmission resumes, causing it to spike the input voltage. Whatever caused the damage it seems to be a quite substantial adverse condition to have done that. Did the step-down providing 5V survive that ? Nope that's...
by nachiketh
Tue Sep 04, 2018 6:44 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Could this be the result of a lightning strike ? I doubt that, there is another motherboard drawing power from the same SMPS which is working perfectly fine. :roll: However a power shutdown happens every now and then. I'm guessing it's got something to do with a power surge happening when the power...
by nachiketh
Tue Sep 04, 2018 5:14 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

recently the pi burnt out and i lost the board If you could describe how your Pi was being used, what it was connected to, and how it "burnt out" - stopped working, burst into flames, started smoking, etc - it might be possible to suggest why that may have happened, what might have caused it, and h...
by nachiketh
Tue Sep 04, 2018 2:46 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

Input - 8V-50V Output - 5V 3A(Max) Can you provide more information about this power supply. For example what is the exact type? This is the power supply i'm using: https://www.amazon.com/GERI-Converter-Module-8-50V-Output/dp/B00W52N8XW/ref=sr_1_1?ie=UTF8&qid=1536072415&sr=8-1&keywords=8-50v+dc+to+...
by nachiketh
Tue Sep 04, 2018 12:58 pm
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Re: Raspberry Pi Power Source

LTolledo wrote: Get the RPF recommended power supply unit. Simple as that.
Unfortunately I do not have a AC power in the environment where i'm using this RPi, hence I cannot use the RPF recommended power supply unit.
by nachiketh
Tue Sep 04, 2018 11:55 am
Forum: Troubleshooting
Topic: Raspberry Pi Power Source
Replies: 21
Views: 474

Raspberry Pi Power Source

I'm currently powering the raspberry Pi from a 27V DC SMPS via a step down transformer having the following specification: Input - 8V-50V Output - 5V 3A(Max) However recently the pi burnt out and i lost the board, this happend after it was running fine since the last few weeks. Is there any addition...
by nachiketh
Sat Aug 18, 2018 12:56 pm
Forum: Troubleshooting
Topic: eth0 unstable on rpi
Replies: 1
Views: 130

eth0 unstable on rpi

The ethernet interface bound to a static IP on my rpi3 model B keeps going down every few minutes, the system logs show the following: Aug 18 18:18:43 raspberrypi kernel: [ 3895.679071] ERROR::dwc_otg_hcd_urb_enqueue:487: Not connected Aug 18 18:18:43 raspberrypi kernel: [ 3895.679071] Aug 18 18:18:...
by nachiketh
Tue Mar 20, 2018 5:18 am
Forum: Troubleshooting
Topic: Boot WiFi dhcpcd issues
Replies: 0
Views: 92

Boot WiFi dhcpcd issues

I'm running a Raspberry PI 3 Model B with the following Raspian image: No LSB modules are available. Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.1 (stretch) Release: 9.1 Codename: stretch I can see the following logs from syslogs: Mar 19 01:17:01pi CRON[11384]: (root) CMD ( cd / && ru...
by nachiketh
Sun Mar 11, 2018 2:38 pm
Forum: Troubleshooting
Topic: Issues with Bluetooth and WiFi
Replies: 0
Views: 454

Issues with Bluetooth and WiFi

I am running a RPI3 running the following version of Raspbian: Distributor ID: Raspbian Description: Raspbian GNU/Linux 9.1 (stretch) Release: 9.1 Codename: stretch The WiFi connectivity on this RPI3 is shaky with the connection going down occassionaly, whenever the WiFi connectivity is down, i can ...
by nachiketh
Thu Jul 20, 2017 11:49 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Reading temperature data from a TC513AX
Replies: 0
Views: 224

Reading temperature data from a TC513AX

Hi, I'm working on a project where there is a need for me to read temperature data on a rPi, from a Temperature controller. The specifications of the same are in the link below: http://www.selec.com/Content/DownlodableFiles/Operating%20Manuals/Temperature%20series/Economic%20temperature%20controller...
by nachiketh
Sat Jul 15, 2017 2:51 pm
Forum: Advanced users
Topic: NTP Client Configuration
Replies: 1
Views: 934

NTP Client Configuration

I have setup my rPi to sync time from an NTP server on my network, I have a couple of questions regarding the same. Is there a way to make my rPi sync the timezone information as well along with the time. currently its only syncing the time but the timezone is still the same On boot, how to make sur...
by nachiketh
Wed Jan 27, 2016 8:56 am
Forum: General programming discussion
Topic: Encrypt SD card content
Replies: 41
Views: 37716

Re: Encrypt SD card content

how about this for protecting your intellectual property: sudo apt-get install ecryptfs-utils sudo apt-get install lsof sudo ecryptfs-migrate-home -u pi There will be a bit more to it but thats the main part - it will only cover your home folder. If you want to do more then its something like: http...
by nachiketh
Mon Dec 14, 2015 2:43 pm
Forum: Troubleshooting
Topic: RPi hangs on boot with ACT LED continously on
Replies: 3
Views: 516

Re: RPi hangs on boot with ACT LED continously on

Read the sticky again, because a continously glowing ACT means it's corrupted. Oops I somehow missed that line.. thanks! You may be able to browse the files, but it still could be corrupted. How do you shutdown the Pi? Do you pull the plug? Yes the Pi runs in an environment where the power supply i...
by nachiketh
Mon Dec 14, 2015 2:24 pm
Forum: Troubleshooting
Topic: RPi hangs on boot with ACT LED continously on
Replies: 3
Views: 516

RPi hangs on boot with ACT LED continously on

I have been using the RPi(Raspberry Pi 2 Model B) for the last few months on a regularly without any issues, however it has stopped working since last night where after reboot the Pi wont come up. Both the red and the green LED are glowing fully and the Pi is not booting up. Connecting it to a displ...
by nachiketh
Sat Dec 12, 2015 8:15 am
Forum: Troubleshooting
Topic: WiFi Latency Issues
Replies: 2
Views: 524

Re: WiFi Latency Issues

The real test of signal quality is to use it. Any problems? Yes i'm facing packet drops between my laptop and pi and also delays in TCP communication, this is intermittent as most times the ping response seems ok and sometimes it is high, below is a snapshot, as you can see the min is 10 ms where a...
by nachiketh
Fri Dec 11, 2015 5:35 pm
Forum: Troubleshooting
Topic: WiFi Latency Issues
Replies: 2
Views: 524

WiFi Latency Issues

So i'm running an rPi in an always on mode and connecting to it over the WiFi. I'm using a 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) USB WiFi dongle which is one of the recommended peripherals. I'm seeing that the network latency from my laptop to the rPi is too high whereas...
by nachiketh
Tue Dec 08, 2015 4:12 pm
Forum: Troubleshooting
Topic: WiFi Link goes down
Replies: 3
Views: 1508

Re: WiFi Link goes down

Have you disabled the power saving mode for your WiFi dongle? https://www.raspberrypi.org/forums/viewtopic.php?p=855239#p855239 I'm unable to find the modprobe file for my adapter. The following is USB device details: Bus 001 Device 007: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (H...
by nachiketh
Fri Dec 04, 2015 6:43 am
Forum: Troubleshooting
Topic: WiFi Link goes down
Replies: 3
Views: 1508

WiFi Link goes down

Hi Folks, I'm using a USB WiFi dongle on my RPi, I have observed that after some time (~1Day) the WiFi goes down and requires me to reboot the rPi whenever that happens, upon going through the syslog I found the following error around the time the rPi went offline: Dec 4 10:18:24 raspberrypi ifplugd...
by nachiketh
Wed Jul 15, 2015 6:42 pm
Forum: Advanced users
Topic: RS232 Interfacing on RPi
Replies: 12
Views: 1468

Re: RS232 Interfacing on RPi

ame wrote:By "inject your own characters" I mean just send some extra characters to the serial port which are additional to any characters that the protocol specifies.
Thanks, will try this out and see if I can actually simulate the same behaviour on Linux
by nachiketh
Wed Jul 15, 2015 6:41 pm
Forum: Advanced users
Topic: RS232 Interfacing on RPi
Replies: 12
Views: 1468

Re: RS232 Interfacing on RPi

But you did this on Windows ? I have a feeling that these codes we are talking about only exist on the Windows side. (between hardware and application) (Thats how I interpret "Enables or disables placement of a line and modem status data into the data stream." anyway.) But I can't be sure if it imp...
by nachiketh
Wed Jul 15, 2015 10:05 am
Forum: Advanced users
Topic: RS232 Interfacing on RPi
Replies: 12
Views: 1468

Re: RS232 Interfacing on RPi

The question is, do you really need it ? I tried interfacing with the legacy device using PySerial without setting the controls, I did not receive any response from the device. I then had to move to C++ where I can set these control codes and I was then able to successfully interface with the devic...

Go to advanced search