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by JonnyAlpha
Mon Feb 12, 2018 10:46 am
Forum: Automation, sensing and robotics
Topic: PiWars 2018 - Remote Control Better / Best Option Advice
Replies: 0
Views: 53

PiWars 2018 - Remote Control Better / Best Option Advice

Hi; Sanity check and advice please. For remote control we are currently using a Pi Hut 2.4Ghz Wireless Game Controller. We have a couple of issues with this method: (a). Every so often, normally at crucial moments' the connection seems to get lost and either the Robot crashes or stops and cannot be ...
by JonnyAlpha
Fri Jan 26, 2018 10:38 pm
Forum: Advanced users
Topic: PiCamera Version
Replies: 6
Views: 386

Re: PiCamera Version

Many thanks all. I will pass it on.
by JonnyAlpha
Tue Jan 23, 2018 7:00 pm
Forum: Advanced users
Topic: PiCamera Version
Replies: 6
Views: 386

PiCamera Version

Posting on behalf of Dave Akerman who asked the question on Twitter:

Quick question - is there a simple way to find the model or resolution of Pi camera connected, from a bash script? No doubt it can be done in Python with picamera but is there something simpler ?

Thanks
by JonnyAlpha
Fri Dec 29, 2017 6:32 pm
Forum: Advanced users
Topic: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached
Replies: 7
Views: 478

Re: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached

So a reply from PiBorg said that it should be ok, so I tested it and it was fine.
Just make sure you switch off (and or) disconnect any battery / power supply to motor driver board before applying power to the Raspberry Pi.
by JonnyAlpha
Wed Dec 27, 2017 5:57 pm
Forum: Advanced users
Topic: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached
Replies: 7
Views: 478

Re: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached

Why not ask the product maker/supplier after all it's there product design they should know rather than expecting some on on the forum to have done what you want to do. Not every possible bit of kit and every way of using it will have been tested by someone on the forum. I have asked the product ma...
by JonnyAlpha
Wed Dec 27, 2017 5:55 pm
Forum: Advanced users
Topic: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached
Replies: 7
Views: 478

Re: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached

Main problem will be power supply contention, where two power supplies with even only slightly different voltages will cause high currents to flow from to another if directly connected, limited by parasitic cable resistance. If the add-on board has a series diode on the 5V rail, it should be fine (...
by JonnyAlpha
Sat Dec 23, 2017 7:25 pm
Forum: Advanced users
Topic: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached
Replies: 7
Views: 478

Re: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached

Thanks for the reply but that wasn't the question :-)
by JonnyAlpha
Sat Dec 23, 2017 3:21 pm
Forum: Advanced users
Topic: Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached
Replies: 7
Views: 478

Powering a Pi with Mains AC / DC Adaptor with Battery Pack Attached

Hi; I have just assembled a MonsterBorg which comes with a Thunderborg Motor Driver. The setup (MonsterBorg / ThunderBorg and Raspberry Pi) is powered by 10 x AA batteries. The Pi receives its power from the ThunderBorg via the GPIO (the first 6 pins are connected to the ThunderBorg). Removing the b...
by JonnyAlpha
Thu Dec 14, 2017 4:31 pm
Forum: Advanced users
Topic: Connect to Pi After Losing Remote Access
Replies: 2
Views: 252

Connect to Pi After Losing Remote Access

OK; This is a common problem (for me). So when demonstrating out I have a Pi setup to access a WIfi Hotspot. However occasionally at crucial times, for whatever reason it fails to connect . Then without a monitor or keyboard to connect it to I cannot take a look inside and see what if anything has f...
by JonnyAlpha
Tue Dec 12, 2017 7:52 pm
Forum: Automation, sensing and robotics
Topic: Reading Wireless Controller Input
Replies: 1
Views: 320

Re: Reading Wireless Controller Input

OK slight deviation but using this guide here: https://learn.pimoroni.com/tutorial/robots/controlling-your-robot-wireless-keyboard I managed to control some LEDs using buttons on a wireless keyboard, lot of delay though so would not be great for fine motor control :-) Now to find a guide on generic ...
by JonnyAlpha
Thu Dec 07, 2017 8:52 pm
Forum: Automation, sensing and robotics
Topic: Reading Wireless Controller Input
Replies: 1
Views: 320

Reading Wireless Controller Input

Hi; I have recently purchased this Wireless Game Controller from the Pi Hut: https://thepihut.com/products/raspberry-pi-compatible-wireless-gamepad-controller I have successfully set it up and have it working with the motor driver board that comes with the CamJamEduKit #3. What I would like to do no...
by JonnyAlpha
Mon Nov 27, 2017 7:55 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

That explains why so far my fund raising project has grossed $ NIL, everyone is getting wary.
If you back my project you won't receive any technology but you might receive a personal thank you video :-)

https://spsr.me/LLhK
by JonnyAlpha
Sun Nov 26, 2017 6:17 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

KanoMaster22 wrote:
Sun Nov 26, 2017 4:49 pm
I was reading some people on this thread had backed the Tiko 3D printer. I presume you have seen this.
Sorry not sure I follow?
by JonnyAlpha
Sun Nov 26, 2017 6:14 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

After this I would be able to successfully use my Anet to produce the printed parts for my Hypercube. I think you will find that most printers only have three axes and you need four to print a hypercube. (yes, yes, I know -- it's a type of printer -- but the joke was too good to ignore) I started r...
by JonnyAlpha
Sat Nov 25, 2017 7:21 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

Hi, I didn't notice that you'd purchased a 3d printer on a black friday sale. Congratulations. I hope you have a lot of fun with it. The MakerGear isn't a filament, it's a 3d printer. But, it looks like (for now) - you're past the looking phase, and into the doing phase. Good luck. Yes I finally to...
by JonnyAlpha
Sat Nov 25, 2017 4:34 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

PLA and ABS are the main filaments, and (as mentioned) - ABS (and Nylon) could have a heated bed for printing. I think that a heated bed should be on the "need to have" list. For decorative things, you'll likely use PLA, and for robotic things you'll likely use ABS, and for very fine/tough robotic ...
by JonnyAlpha
Sat Nov 25, 2017 3:41 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

Just ordered some borosilacate glass, thermal padding and bulldog clips.
Also some PLA+, a MOSFET, spare Extruder tubes, nozzles and thumb screws for bed levelling.

Edit - just found a whole pack of bulldog clips in my draw!!!
by JonnyAlpha
Fri Nov 24, 2017 10:36 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

Where did you get the glass from if you don't mind me asking?
Have you added auto leveling yet?
by JonnyAlpha
Fri Nov 24, 2017 7:07 pm
Forum: Off topic discussion
Topic: 3D Printer
Replies: 68
Views: 13733

Re: 3D Printer

Just ordered the Anet A8 from Gearbest - the support and upgrades for this printer sold it for me in the end. Black Friday Sale £106. Today it is down to £99 grab an absolute bargain.
by JonnyAlpha
Fri Nov 17, 2017 6:17 pm
Forum: Off topic discussion
Topic: Makerspace Crowd Funding
Replies: 0
Views: 552

Makerspace Crowd Funding

If this is not allowed please delete. Fellow Pi Enthusiasts, I am a teacher who is passionate about developing children's educational experience through digital technology. I apologise for this post but I wanted to make you aware that my school is trying to raise money to create a digital workshop f...
by JonnyAlpha
Sat Oct 21, 2017 3:53 pm
Forum: Python
Topic: Python 2 and Python 3 Missing Module Issue
Replies: 8
Views: 814

Re: Python 2 and Python 3 Missing Module Issue

Ok so I am now making some progree (my current script now has three different videos!!!) and appears to be working OK. It is written in Python 2 however, which has caused me some trouble especially when trying to get user input, I instinctively used: name = input("what is your name") The above code ...
by JonnyAlpha
Tue Oct 17, 2017 7:55 pm
Forum: Python
Topic: Python 2 and Python 3 Missing Module Issue
Replies: 8
Views: 814

Re: Python 2 and Python 3 Missing Module Issue

Ah Mr Hutting, I have been searching for your contact details to help out with this and could not find them until I spotted the module :-) I am working on two projects for which I need python-omxplayer-wrapper, one is the code that you originally helped me with for a static virtual robot and the oth...
by JonnyAlpha
Mon Oct 16, 2017 8:08 pm
Forum: Python
Topic: Python 2 and Python 3 Missing Module Issue
Replies: 8
Views: 814

Re: Python 2 and Python 3 Missing Module Issue

Sorry guys I have been sending you on a goose hunt :-( I just looked at this again and noticed a program in the main folder (pi) called keyb.py. So much has happened since I last looked at this the module must have been this custom one written / modified by Jozef Hutting - the gentleman who helped m...
by JonnyAlpha
Sat Oct 14, 2017 8:07 am
Forum: Python
Topic: Python 2 and Python 3 Missing Module Issue
Replies: 8
Views: 814

Python 2 and Python 3 Missing Module Issue

Hi; Someone on GitHub has helped me successfully play a video, pause it and play a second video and unpause the first using Will Price's OMXPlayer-Wrapper for omxplayer. What I want to do know is expand this code to add more videos for different scenarios as a front end to an interactive program for...
by JonnyAlpha
Thu Aug 31, 2017 9:11 pm
Forum: Troubleshooting
Topic: Old RPi not booting with new Raspbian Stretch Image
Replies: 1
Views: 736

Old RPi not booting with new Raspbian Stretch Image

Hi; So I am running a digital workshop on Sat / Sun and in preparation thought I would by some Kingston Micro SD Cards and SD Adaptors - download the latest OS (Stretch) so that I can run Sonic Pi. I am using older Model B with 2 USB ports and have successfully run Raspbian with Sonic Pi using my ow...

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