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by raymate
Sun Apr 07, 2019 9:05 pm
Forum: Raspbian
Topic: Error doing update
Replies: 2
Views: 342

Re: Error doing update

So what happened when you ran sudo dpkg --configure -a as suggested? Please post any *full* error messages Well all is now well I just typed that command and it did something, rebooted and its allowed me to upgrad OK. Problem solved, I really dint know if I should do that to or not, guess I should ...
by raymate
Sun Apr 07, 2019 6:17 pm
Forum: Raspbian
Topic: Error doing update
Replies: 2
Views: 342

Error doing update

Just started to get a error today doing an update, I'm simply doing sudo apt-get update sudo apt-get dist-upgrade (also get error just doing dist-upgrade) Its saying E: dpkg was interrupted, you must manually run "sudo dpkg --configure -a' to correct the problem. Im not sure 100% what to put, so bef...
by raymate
Sat Feb 23, 2019 10:12 pm
Forum: HATs and other add-ons
Topic: Tips for soldering GPIO
Replies: 8
Views: 836

Re: Tips for soldering GPIO

drgeoff wrote:
Sat Feb 23, 2019 9:48 pm
You may find it easier to solder to the other end of the pins on the underside of the board. That also has the advantage of leaving the pins intact and able to use a connector should that be desirable at a future time.
Good tip
by raymate
Wed Feb 20, 2019 2:51 am
Forum: HATs and other add-ons
Topic: Tips for soldering GPIO
Replies: 8
Views: 836

Re: Tips for soldering GPIO

Thanks for all the tips, I shall see how it goes :)
by raymate
Wed Feb 20, 2019 1:11 am
Forum: HATs and other add-ons
Topic: Tips for soldering GPIO
Replies: 8
Views: 836

Tips for soldering GPIO

Any tips on soldering wire direct to GPIO, I can't seem to make wire stick.

If it does then it tend to break of leaving no solder on GPIO pins.
by raymate
Sun Feb 10, 2019 6:07 pm
Forum: General discussion
Topic: We've opened a shop!
Replies: 62
Views: 3286

Re: We've opened a shop!

Congrats, now who else want's to go just to get the mouse and keyboard.... :lol: or will normal distributors be able to to sell them at some point ?

Please
by raymate
Sat Feb 02, 2019 7:32 pm
Forum: Python
Topic: Not sure if this is possible...
Replies: 11
Views: 490

Re: Not sure if this is possible...

Basically yes Im running Pi with no monitor or keyboard it will just be on the WiFi running a python script to control a fan with a temperature sensor. I want to be able to connect with VNC from time to time to see the output of the temperature sensor, my python script is "print" the sensor readings...
by raymate
Sat Feb 02, 2019 6:16 pm
Forum: Python
Topic: Not sure if this is possible...
Replies: 11
Views: 490

Re: Not sure if this is possible...

That'll send output to the text console. If you're running the desktop you won't see it unless you switch to it. Take it out of rc.local and try what MarkDH102 suggested but be aware that with that method it will only run when your user is logged into the desktop. You might also find it runs more t...
by raymate
Sat Feb 02, 2019 2:43 pm
Forum: Python
Topic: Not sure if this is possible...
Replies: 11
Views: 490

Re: Not sure if this is possible...

I have set it up to auto run at boot, which it does indeed do but i can't see the status that is printed to the shell window. How are you doing that? cron? /etc/rc.local? ~/.profile? ~/.bashrc? /etc/profile? autostart? systemd service? The method you use affects when your program gets run and wheth...
by raymate
Sat Feb 02, 2019 2:09 am
Forum: Other projects
Topic: GPIO PIN Power Question
Replies: 2
Views: 236

Re: GPIO PIN Power Question

There are no posted specs for how much current each pin can pass, but it is known the absolute limit is 2.5A, because that's what the power supply and polyfuse can give - unless you are powering a different way. That said, your devices probably draw only milliamps, so one pin should do both, and th...
by raymate
Sat Feb 02, 2019 12:30 am
Forum: Other projects
Topic: GPIO PIN Power Question
Replies: 2
Views: 236

GPIO PIN Power Question

Creating a project that uses a DHT11 sensor and a relay. They both use 5v to power each item. My question is should I power them from the same 5v pin or use say pin 2 and 4 to power each individually? Can I apply this to the ground pins also again just use one ground pin or should I use pin 6 and 9?...
by raymate
Fri Feb 01, 2019 8:15 pm
Forum: Python
Topic: Not sure if this is possible...
Replies: 11
Views: 490

Not sure if this is possible...

Created a python script that runs a fan with a relay and it all works fine, the script outputs status to screen showing if its on and the temperature from a DHT11. Of course I can open this and run it then see the output but I have set it up to auto run at boot, which it does indeed do but i can't s...
by raymate
Sun Jan 27, 2019 1:25 pm
Forum: Automation, sensing and robotics
Topic: Buying quality components?
Replies: 6
Views: 458

Buying quality components?

Hi, What brands are recommended for buy components such as relay, temp, humidity sensor, fans and jumper wires. As Im starting to build some projects that will be installed into my home and run 24/7 I dont really want something that will be poorly made and create a fire risk. Not sure if you can pro...
by raymate
Mon Jan 21, 2019 1:20 am
Forum: Python
Topic: [solved] Controlling a fan on a relay with python
Replies: 13
Views: 3635

Re: [solved] Controlling a fan on a relay with python

Thanks for the reply, but I use Pi I dont want to start buying more controller boards, its just another thing to lean :) I just found this library here for the pi: https://tutorials-raspberrypi.com/raspberry-pi-measure-humidity-temperature-dht11-dht22/ This should work just fine, with my script. Lo...
by raymate
Mon Jan 21, 2019 1:07 am
Forum: Python
Topic: [solved] Controlling a fan on a relay with python
Replies: 13
Views: 3635

Re: [solved] Controlling a fan on a relay with python

I know its doable with arduino, (even the arduino pro micro, you don't have to go big with the bulky arduino uno). Like this video here: https://www.youtube.com/watch?v=xD8wHXDzLkQ Just ignore anything related to the TM1637 display, and you get exactly what you want...something to turn on a device ...
by raymate
Mon Jan 21, 2019 12:22 am
Forum: Python
Topic: [solved] Controlling a fan on a relay with python
Replies: 13
Views: 3635

Re: [solved] Controlling a fan on a relay with python

Here you go: https://www.instructables.com/id/Automated-cooling-fan-for-Pi/ Temp functions are inside the script Want to build something like this but want to use an external temp sensor such as the DHT11, any tutorial you can recommend. So using a replay to control external fan with external temp ...
by raymate
Fri Jan 18, 2019 5:21 pm
Forum: Automation, sensing and robotics
Topic: Controlling relays with temperature sensor
Replies: 12
Views: 2513

Re: Controlling relays with temperature sensor

I'd probably use a DS18B20 for the sensor, as they are so easy to set up on the Pi. For the fans, I'd probably use a MOSFET or series of MOSFETs to drive them. That way you can use PWM to control the speed of the fan based on the temperature, rather than having them switch on and off at full speed....
by raymate
Fri Jan 18, 2019 5:19 pm
Forum: Automation, sensing and robotics
Topic: Controlling relays with temperature sensor
Replies: 12
Views: 2513

Re: Controlling relays with temperature sensor

DougieLawson wrote:
Fri Jan 18, 2019 5:04 pm
You may have a long wait for an answer TheScrawler hasn't been on the forum since Tue 13 Mar 2018, 02:57.
You could be right, any other tutorials that may help me.

I know its basic stuff but Im stumped where to start
by raymate
Fri Jan 18, 2019 4:07 pm
Forum: Automation, sensing and robotics
Topic: Controlling relays with temperature sensor
Replies: 12
Views: 2513

Re: Controlling relays with temperature sensor

@thescrawler May I ask, I'm trying to something like this. Want to control a number of 5v USB fans using a relay as a on/off switch for the fans. Using a temperature sensor to sense the location. I'm running fans in a network rack. Could I ask what hardware you are using in terms of temp sensor and ...
by raymate
Tue Nov 27, 2018 12:04 am
Forum: HATs and other add-ons
Topic: PoE HAT - USB Ports not working - over-current (FIXED - New Hardware Release)
Replies: 327
Views: 81147

Re: PoE HAT - USB Ports not working - over-current (FIXED - New Hardware Release)

Don't help you but I got mine, in Canada, from BuyaPi

So some have made it across the pond, they did tell me the revised is very limited stock when I got mine.
douglas5962 wrote:
Mon Nov 26, 2018 6:23 pm
Has anyone been able to purchase the modified POE Hats in the US? Newark has pulled them off there website again for some reason.
by raymate
Fri Nov 16, 2018 2:41 am
Forum: General discussion
Topic: Looking for small mechanical wired keyboard...
Replies: 8
Views: 510

Re: Looking for small mechanical wired keyboard...

Yes no membrane, I like the ones such as "POKR3R" and "WHITEFOX" "MAGICFORCE" preferred switches for me are cherry brown, but I'm really looking for a cheaper alternative even copy of said keyboard, its running on a Pi so dont real want to use a keyboard that costs more than the Pi itself really, bu...
by raymate
Fri Nov 16, 2018 1:25 am
Forum: General discussion
Topic: Looking for small mechanical wired keyboard...
Replies: 8
Views: 510

Looking for small mechanical wired keyboard...

Have one of them tiny wireless keyboards you can get plenty of different styles on eBay amazon etc. I'm looking for a small form factory USB wired keyboard, ideally something mechanical, the keys don't need to be full size. Ideally not full size as I want a small compact quality keyboard, for exampl...
by raymate
Thu Nov 15, 2018 11:23 pm
Forum: HATs and other add-ons
Topic: PoE HAT - USB Ports not working - over-current (FIXED - New Hardware Release)
Replies: 327
Views: 81147

Re: PoE HAT - USB Ports not working - over-current

Thank you. now I see, so it seems I do have the revised board, might hang onto the original one I also have it might be collectable one day ;) Does it have an extra daughter-board/mezzanine board as per my image above and shown in my blog: https://www.martinrowan.co.uk/2018/11/raspberry-pi-poe-hat-o...
by raymate
Thu Nov 15, 2018 11:15 pm
Forum: HATs and other add-ons
Topic: PoE HAT - USB Ports not working - over-current (FIXED - New Hardware Release)
Replies: 327
Views: 81147

Re: PoE HAT - USB Ports not working - over-current

How to tell if I have revised board?
by raymate
Wed Nov 14, 2018 2:16 am
Forum: HATs and other add-ons
Topic: PoE Hat Fan... hat
Replies: 1
Views: 1279

PoE Hat Fan... hat

Does anyone make a hat that is basically the PoE hat but just the fan side of it with no PoE? I have the PoE hat and I don't use the PoE side of as yet, but I love how the fan cycles on and off as needed. Would it be easy to make my own hat to do the same with a tiny fan? Is the fan cycling on off c...

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