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by LTolledo
Sun Nov 11, 2018 2:26 pm
Forum: Troubleshooting
Topic: 6x usb hdd limit can it be overcome.
Replies: 6
Views: 553

Re: 6x usb hdd limit can it be overcome.

I kinda have the same dilemma when I though about transferring my 18 x 4TB and 2 x 2TB USB HDD " drive clusters " from my Win10 to RPi3B+, but as I have found out, the RPi3B+ can only see 6 of the 20 USB HDDs... using a single USB 3.0 cable from a powered Hub. might try splitting to 10 x 4TB in one ...
by LTolledo
Sun Nov 11, 2018 1:56 pm
Forum: Raspberry Pi OS
Topic: Duplicate an image using Win32DiskImager doesn't work
Replies: 13
Views: 2118

Re: Duplicate an image using Win32DiskImager doesn't work

Despite what has been presented, if the algorithm used in Win32DiskImager's see a failure in size comparison, then image duplication fails. Some may argue more.... and more.... because of this....because of that.....but: If the condition(s) are not met, then image duplication using Win32DiskImager w...
by LTolledo
Sun Nov 11, 2018 9:00 am
Forum: Troubleshooting
Topic: Cannot boot NOOBS.
Replies: 12
Views: 1492

Re: Cannot boot NOOBS.

How about trying to boot from a Raspbian Stetch image, flashed to the microSD card using Etcher.

it might save you some trouble (and microSD space).
by LTolledo
Sun Nov 11, 2018 8:53 am
Forum: Automation, sensing and robotics
Topic: Read Temperature from Omron K3MA
Replies: 7
Views: 1803

Re: Read Temperature from Omron K3MA

You can still use the OMRON temperature controller "as a temperature display/controller" only. to be able to use it and a Raspberry Pi, you need to connect the thermocouple wire to the from the OMRON temp controller to a temperature A/D converter connected to your RPi. Then use your code to read the...
by LTolledo
Fri Nov 09, 2018 10:23 pm
Forum: Troubleshooting
Topic: Problems with booting (after months of no problems)
Replies: 6
Views: 481

Re: Problems with booting (after months of no problems)

Im sorry, im not sure i know exactly what you mean by ''physically are you using to write NOOBS", but I just followed this https://projects.raspberrypi.org/en/pro ... -started/2 tutorial ? I think FTrevorGowen meant was on what hardware did you format the microSD card. Is it the PC's SD/microSD slo...
by LTolledo
Fri Nov 09, 2018 10:10 pm
Forum: Beginners
Topic: Raspbian stretch lite
Replies: 5
Views: 755

Re: Raspbian stretch lite

That caught me by surprise too when I installed Raspbian Stretch Lite.... thinking it was a "lighter" version of the desktop (just boot to minimal desktop environment, apps/packages to be added later by user) then I checked again the documentation.... re-flashed the microSD with the desktop version ...
by LTolledo
Fri Nov 09, 2018 1:47 pm
Forum: General discussion
Topic: Raspberry pi 30A relay
Replies: 15
Views: 2994

Re: Raspberry pi 30A relay

to make it simple, you cannot (and will never ever) turn ON an AC100V relay with just 3.3V DC directly from the RPi's GPIO.

even "5V relays" dont usually work well directly on RPi's 3.3V GPIO...

better test it first with a 3V battery to confirm it the relay actually turns ON.
by LTolledo
Fri Nov 09, 2018 10:17 am
Forum: Beginners
Topic: More than one connection to gpio and speaker/mic problem
Replies: 8
Views: 618

Re: More than one connection to gpio and speaker/mic problem

if you want mic input to RPi, better use a USB sound dongle with analog out and mic in ports. Those same ones that you can use on a windows pc (like the SoundBlaster X-Fi Go). Even those cheapo USB dongles work with the RPi the program/app you want to use must be able to identify and access the mic ...
by LTolledo
Fri Nov 09, 2018 10:11 am
Forum: Beginners
Topic: MotionEye - need help
Replies: 4
Views: 556

Re: MotionEye - need help

you have to log in as admin...

and better change the admin password immediately (unless you welcome hacking from outsiders, then disregard this line)..
by LTolledo
Fri Nov 09, 2018 9:46 am
Forum: Troubleshooting
Topic: Problems mounting a USB flash drive as addition storage on an rpi 3 B+
Replies: 3
Views: 314

Re: Problems mounting a USB flash drive as addition storage on an rpi 3 B+

Welcome to the forums! if you are using the desktop version... install gparted run gparted when installation finished sudo gparted in gparted, select the USB flash drive unmount it then delete the partition of the unmounted drive then format it to EXT4. then mount it then you can exit gparted be sur...
by LTolledo
Fri Nov 09, 2018 9:37 am
Forum: Troubleshooting
Topic: Pi3 Jessie lite reboot hang
Replies: 3
Views: 454

Re: Pi3 Jessie lite reboot hang

No plans on trying Stretch lite?
by LTolledo
Wed Nov 07, 2018 9:57 pm
Forum: General discussion
Topic: 12 V Relay for power cutoff
Replies: 2
Views: 308

Re: 12 V Relay for power cutoff

emergency power cut off as in no shutdown process on RPi3B, just plain switch off, based on sensor reading. does the 12v power line supplies power to the RPI3B and sensors via buck converter? if the sensor connected to RPi and RPi will command the relay to turn on sensor ---> sensor interface ---> R...
by LTolledo
Wed Nov 07, 2018 9:34 pm
Forum: Off topic discussion
Topic: The future of computer mice
Replies: 26
Views: 8242

Re: The future of computer mice

Computer mouse will stay... specially for those requiring precise cursor control, as in CAD and/or digital image processing.

a good future contender for the computer mouse might be the Brain Wave Interface controlled GUI.....
by LTolledo
Wed Nov 07, 2018 2:13 pm
Forum: Beginners
Topic: Raspberry pi 3 Model B USB ports usage limit
Replies: 7
Views: 973

Re: Raspberry pi 3 Model B USB ports usage limit

Your PAM8403 can draw up to 1.2A itself, but in my experience, it is very difficult to actually reach that high. I would avoid powering it via USB, others have claimed it creates a ground loop. What is your suggestion for powering amplifier? been there, so I'll fill you up on what I did. Have a goo...
by LTolledo
Tue Nov 06, 2018 11:25 pm
Forum: Troubleshooting
Topic: yet another samba connect issue
Replies: 11
Views: 916

Re: yet another samba connect issue

do you have a "pi" user defined in Winpc?

are you able to connect to the samba share but cannot read/write to it?

another is you may have to set the samba version from 1 to 2, as win10pc cannot (or will not) access samba version 1.
by LTolledo
Tue Nov 06, 2018 11:10 pm
Forum: Troubleshooting
Topic: Raspberry Pi 2B Makes Wi-Fi Unusable
Replies: 1
Views: 132

Re: Raspberry Pi 2B Makes Wi-Fi Unusable

If you set the IP address in the RPi2B as static using the "old method" of editing the dhcpcd.conf and/or network interfaces, your RPi2B may be issuing an IP conflict in your WiFi router. Check the IP addresses. A better solution will be to have the WiFi Router issue static IP addresses to your devi...
by LTolledo
Tue Nov 06, 2018 10:15 pm
Forum: Advanced users
Topic: relay 220ac light
Replies: 31
Views: 2471

Re: relay 220ac light

My suggestion is you may do the circuit from the RPi to the relay module. This will fulfil your DIY enthusiasm. Test it first by connecting an LED light to the relay output. Once you have confirmed that the circuit and program works according to your requirements/intentions then the next is to consu...
by LTolledo
Tue Nov 06, 2018 9:55 pm
Forum: Advanced users
Topic: how can I duplicate my PI ?
Replies: 9
Views: 1822

Re: how can I duplicate my PI ?

another "long" method if the OS you are using is not Raspbian Desktop is 1. Save the microSD card image to a winpc using Win32DiskImager. This will also serve as you "backup" image 2. Use Etcher to flash the backed up image to the other microSDs. Just make sure that the microSD capacity is the same ...
by LTolledo
Tue Nov 06, 2018 1:07 pm
Forum: Advanced users
Topic: relay 220ac light
Replies: 31
Views: 2471

Re: relay 220ac light

Another safe commercial alternative: https://energenie4u.co.uk/catalogue/product/ENER002-2PI this one looks nice! Might get one set..... 22quid for safe/tested product, just "plug and play" vs. 7quid for DIY one. cheap but "unsafe" and troublesome... when dealing with electrical mains: Safety First...
by LTolledo
Tue Nov 06, 2018 12:55 pm
Forum: General discussion
Topic: GPIO power cable?
Replies: 3
Views: 477

Re: GPIO power cable?

There are USB to Serial adaptor cables (using DuPont ends) available on Amazon. Dont know if the cable size is at least AWG20....

just cut off the data lines. will save you from cutting,stripping, crimping and inserting to just buying and cutting......
something like this
adfruit.jpg
adfruit.jpg (116.96 KiB) Viewed 461 times
by LTolledo
Tue Nov 06, 2018 12:38 pm
Forum: Raspberry Pi OS
Topic: Large, (128GB) SSD install
Replies: 11
Views: 6442

Re: Large, (128GB) SSD install

Forget NOOBS. Use Etcher to write the Raspbian image. No need to format. +2 installed Raspbian Stretch on 240GB SSD and 2TB Seagate Barracuda 2.5"HDD using image flashed by Etcher. so simple.... no worries....and just plain works! cable used is SATA to USB3.0 adaptor, by Eluteng and Inatek, using c...
by LTolledo
Tue Nov 06, 2018 12:20 pm
Forum: Advanced users
Topic: relay 220ac light
Replies: 31
Views: 2471

Re: relay 220ac light

CAUTION! output will still be AC220V
by LTolledo
Tue Nov 06, 2018 12:12 pm
Forum: Advanced users
Topic: relay 220ac light
Replies: 31
Views: 2471

Re: relay 220ac light

I second scotty101's warning about electrical dangers by inexperienced persons. electrocution by 220V is quite painful and sparks can cause electrical fires and/or can leave at least 2nd degree burns if you're lucky. for the RPi to relay side, I suggest inserting a non-inverting transistor array, as...
by LTolledo
Tue Nov 06, 2018 11:29 am
Forum: Troubleshooting
Topic: wlan static ip not working
Replies: 2
Views: 742

Re: wlan static ip not working

undo all changes! or start from fresh install if you have access to your WiFI router, to set static IP for your RPI, go to the settings to set the router reserve a single WiFi IP (and/or Ethernet LAN IP) address for your RPi. even if you re-install raspbian/other OS to your RPi, it will always get t...
by LTolledo
Tue Nov 06, 2018 10:25 am
Forum: General discussion
Topic: 64-bit operating system
Replies: 358
Views: 140715

Re: 64-bit operating system

.... well at any rate.....64bit raspbian will be out when it is available ...... . . . . . . .....those in a hurry can just compile one themselves, instead of waiting for someone to do it for themselves........ ... . . . ... ... . . . ...

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