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by Bigcat123
Mon Oct 17, 2016 9:52 am
Forum: Automation, sensing and robotics
Topic: Laser Range Finding Sensor?
Replies: 3
Views: 8024

Laser Range Finding Sensor?

I am in dire need of getting some sort of module board/sensor that serves the purpose of laser range finding in a direct beam. Does anyone have any suggestions for a piece of hardware of this kind? I don't want an IR/Ultrasonic version of this - the former is too short range (I need at least a metre...
by Bigcat123
Sun Sep 18, 2016 2:02 pm
Forum: Automation, sensing and robotics
Topic: Electronic Speed Controller - Needs Servo Signal - help!
Replies: 4
Views: 1387

Re: Electronic Speed Controller - Needs Servo Signal - help!

I had never come across it before - but now looking at it! Looks fantastic and just what I need. In particular, I am studying from the demo code that Joan has provided for the Adafruit 12 channel servo driver I have - it has a killer set_pulse_width function. Just trying to run it, but having some i...
by Bigcat123
Sun Sep 18, 2016 1:02 pm
Forum: Automation, sensing and robotics
Topic: Electronic Speed Controller - Needs Servo Signal - help!
Replies: 4
Views: 1387

Electronic Speed Controller - Needs Servo Signal - help!

Hi folks, So I have an ESC (electronic speed controller) that is hooked up to a big lipo and a nice brushless motor. The instructions that came with the ESC and motor are horrendously vague. Anyway I know that it requires a servo signal to control it and the general rule is that an ESC wants the fol...
by Bigcat123
Sat Sep 17, 2016 8:06 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Raspberry Pi 3 & Wiimote?
Replies: 4
Views: 7098

Re: Raspberry Pi 3 & Wiimote?

In The Raspberry Pi Guy's tutorial he seems to use a Wiimote with motion plus? https://youtu.be/bO5-FjLe5xE

Still no luck finding anything discussing Wiimotes on the Pi 3 :(
by Bigcat123
Fri Sep 16, 2016 9:32 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Raspberry Pi 3 & Wiimote?
Replies: 4
Views: 7098

Raspberry Pi 3 & Wiimote?

Hi folks, Just wondering whether anyone knows of a comprehensive way of using Wiimotes in Python that uses the Pi 3's bluetooth chip? I watched this tutorial video but it is quite old and for the original Pi - consequently its for a USB bluetooth dongle and doesn't work. Ideally I am looking to be a...
by Bigcat123
Tue Jul 21, 2015 12:36 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Serial eek! Data problems!
Replies: 2
Views: 621

Serial eek! Data problems!

Hi there, So currently I am doing a little project where I want to manipulate a 3D model using (ideally) compass/accelerometer data. Currently I am playing around with just the accelerometer. I am using an ARM mbed device that has a built-in Freescale accelerometer - I have written the code in the m...
by Bigcat123
Tue Dec 24, 2013 12:57 pm
Forum: Raspbian
Topic: Help! Autorun a Python script?!
Replies: 1
Views: 715

Help! Autorun a Python script?!

Hello all, I have a Python script that I want to run on startup... It is quite simple - pushes my IP address to an OLED display. But the thing is: what do I have to do to get it to run on startup? Other tutorials have mentioned bash scripts - what are they? Can someone please help me! Thanks Bigcat123
by Bigcat123
Mon Oct 28, 2013 6:26 pm
Forum: Automation, sensing and robotics
Topic: Fast geared motors - anyone know where to get em?
Replies: 5
Views: 1117

Re: Fast geared motors - anyone know where to get em?

So... http://www.hobbytronics.co.uk/mm-gear-motor-100 or http://www.hobbytronics.co.uk/mm-gear-motor-30 And you think that they would be powerful enough to drive something around 80cm^2 big? With a fair bit of hardware on them? Thanks I don't know. I did notice at least one review (not sure which g...
by Bigcat123
Mon Oct 28, 2013 5:28 pm
Forum: Automation, sensing and robotics
Topic: Fast geared motors - anyone know where to get em?
Replies: 5
Views: 1117

Re: Fast geared motors - anyone know where to get em?

So... http://www.hobbytronics.co.uk/mm-gear-motor-100 or http://www.hobbytronics.co.uk/mm-gear-motor-30 And you think that they would be powerful enough to drive something around 80cm^2 big? With a fair bit of hardware on them?

Thanks
by Bigcat123
Mon Oct 28, 2013 4:58 pm
Forum: Automation, sensing and robotics
Topic: Fast geared motors - anyone know where to get em?
Replies: 5
Views: 1117

Fast geared motors - anyone know where to get em?

Hello all, I am on the hunt for some fast geared motors... I have built a robot before (using the Magician robot chassis) however it went a bit slow (the motors were these ones: http://www.ebay.co.uk/itm/Arduino-Smart-Car-Robot-DC-3V-6V-Drive-Gear-Motor-with-tire-/161131891991?pt=UK_BOI_Electrical_C...
by Bigcat123
Sun Oct 27, 2013 4:11 pm
Forum: General discussion
Topic: WiFi with no monitor or keyboard... Help!
Replies: 15
Views: 4915

Re: WiFi with no monitor or keyboard... Help!

Just a cheapskate ploy from the manufacturers to avoid having to put an optical drive in 'em..... You can't beat an old school desktop, with a big monitor, a real mouse and wired network. I'm just an old cynic who should probably have been put out to grass years ago. I understand - and believe me i...
by Bigcat123
Sun Oct 27, 2013 3:42 pm
Forum: General discussion
Topic: WiFi with no monitor or keyboard... Help!
Replies: 15
Views: 4915

Re: WiFi with no monitor or keyboard... Help!

Save yourself a lot of trouble for the future, download Ubuntu (12.04 will fit on a CD) and burn it onto a CD/DVD. When you need a linux box other than the Pi, just boot your PC from it. It can be used for lots of jobs on the Pi, without having to work around the limitations of M$ Windoze. And when...
by Bigcat123
Sun Oct 27, 2013 11:36 am
Forum: General discussion
Topic: WiFi with no monitor or keyboard... Help!
Replies: 15
Views: 4915

Re: WiFi with no monitor or keyboard... Help!

Let's see now.... No monitor/keyboard. No ethernet. No Wifi. Hmmmm. However *do* we communicate with the Pi? I guess you've been accessing it via the serial port, right? ISTM that you should be able to get an ethernet cable at your local Radio Shack, if nothing else... Normally I plug it into the T...
by Bigcat123
Sun Oct 27, 2013 10:52 am
Forum: General discussion
Topic: WiFi with no monitor or keyboard... Help!
Replies: 15
Views: 4915

Re: WiFi with no monitor or keyboard... Help!

Thanks for the reply,

Sadly I don't have an ethernet cable handy at the moment and so I will not be able to do that. Any other way of doing it?

Thanks again
by Bigcat123
Sun Oct 27, 2013 10:34 am
Forum: General discussion
Topic: WiFi with no monitor or keyboard... Help!
Replies: 15
Views: 4915

WiFi with no monitor or keyboard... Help!

Hello all,

I have just got a USB WiFi dongle for my Raspberry Pi but I am having some trouble using it - mainly because I can't plug it into a monitor and keyboard. Is there anyway to setup WiFi without a monitor? I don't have access to a Linux machine either - just Windows!

Thanks
by Bigcat123
Wed Oct 23, 2013 6:01 pm
Forum: Python
Topic: Barcode Database???
Replies: 6
Views: 3790

Barcode Database???

Hello All, My friend and I are working on a barcode scanner project. We have purchased a USB barcode scanner and the aim is for us to be able to scan pretty much any product and it to then be able to tell us what that product is and more importantly what material it is. We theorised that there must ...
by Bigcat123
Tue Oct 01, 2013 8:41 pm
Forum: Python
Topic: Python Factorizing help!
Replies: 2
Views: 696

Python Factorizing help!

Dear Forumers... I'm pretty handy with Python - but this last task has thrown me... I was wondering whether any of you could help? The task is as follows: Write a program in Python 3 that factorizes a number Start by thinking about the algorithms... You may NOT use any of Python's factorizing functi...
by Bigcat123
Wed Sep 18, 2013 7:23 pm
Forum: Python
Topic: Stuck on Codecademy! Please help!
Replies: 4
Views: 1827

Stuck on Codecademy! Please help!

I am doing a few courses on Codecademy and this one thing has been really annoying me because I do not know what it is asking me to do! So I am trying to write a really simple program that converts words into PygLatin - PygLatin is like 'fake latin' , its just a bit of simple fun. And essentially yo...
by Bigcat123
Sun Sep 15, 2013 5:58 pm
Forum: Automation, sensing and robotics
Topic: 6 Legged buttons...
Replies: 9
Views: 1569

Re: 6 Legged buttons...

One way among many. Connect the top blue wire to ground. Connect the middle blue wire to a gpio. Set the gpio pull up/down mode to pull up. The gpio will read 1 with the switch in one position and 0 in the other. Ah, OK... Pull up what pin?! With a resistor? Thanks! The gpios have internal pull ups...
by Bigcat123
Sun Sep 15, 2013 5:24 pm
Forum: Automation, sensing and robotics
Topic: 6 Legged buttons...
Replies: 9
Views: 1569

Re: 6 Legged buttons...

joan wrote:One way among many.

Connect the top blue wire to ground. Connect the middle blue wire to a gpio. Set the gpio pull up/down mode to pull up. The gpio will read 1 with the switch in one position and 0 in the other.
Ah, OK... Pull up what pin?! With a resistor?

Thanks!
by Bigcat123
Sun Sep 15, 2013 3:15 pm
Forum: Automation, sensing and robotics
Topic: 6 Legged buttons...
Replies: 9
Views: 1569

Re: 6 Legged buttons...

joan wrote:Is that a button? Looks more like the backside of a slider switch.
Yes that is exactly what it is! Sorry the name slipped my mind! What difference does that make? The slider still has two states? How would I wire it up if it wasn't in the PCB?

Thanks
by Bigcat123
Sun Sep 15, 2013 10:41 am
Forum: Automation, sensing and robotics
Topic: 6 Legged buttons...
Replies: 9
Views: 1569

6 Legged buttons...

Hello! I have recently salvaged a few 6 legged buttons that I really really want to get working with my Pi - the problem is I don't know what to do with all of the legs! I have been trying to follow this tutorial here: http://www.youtube.com/watch?v=ZpkI2JGdtAA&list=UUfY8sl5Q6VKndz0nLaGygPw But that...

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