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by bouncymat
Tue Oct 01, 2013 7:17 pm
Forum: Scratch
Topic: Scratch in the Classroom
Replies: 4
Views: 1852

Re: Scratch in the Classroom

how about the zoom on the projector - all of ours have it , normally on the remote control
by bouncymat
Thu Jun 13, 2013 12:56 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Controlling ESC (Electronic speed controller) with RPi.
Replies: 22
Views: 25423

Re: Controlling ESC (Electronic speed controller) with RPi.

I think you may be beyond where i can help you! If you put a servo on the board does it work with the original example code? - this is a good test to check if the servo board is working, made a big smile on my face when i got the servo swiveling about. Other than that have a look at the data sheet f...
by bouncymat
Tue Jun 11, 2013 7:24 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Controlling ESC (Electronic speed controller) with RPi.
Replies: 22
Views: 25423

Re: Controlling ESC (Electronic speed controller) with RPi.

I also have very little idea what i am doing (as you will see when i post the code in a moment). Firstly - you do have the motor set up properly? i used a lipo battery connected to the esc, then connect the earth and signal wire from the esc to the control board - I do not know if you can connect al...
by bouncymat
Tue Jun 11, 2013 1:55 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Controlling ESC (Electronic speed controller) with RPi.
Replies: 22
Views: 25423

Re: Controlling ESC (Electronic speed controller) with RPi.

hi I spent a while trying to get the RPi PWM to drive my ESC with no luck so i bought the same Adafruit 16Ch servo board. I have got it working, with my brushless motor and ESC. The problem you are having may be the same as that which stumped me (i just had a beeping twiching motor for quite some ti...
by bouncymat
Sun Jun 02, 2013 10:35 pm
Forum: Camera board
Topic: Streaming Raspberry Pi Camera H264 into HTML over RTMP
Replies: 199
Views: 255687

Re: Streaming Raspberry Pi Camera H264 into HTML over RTMP

thankyou,
got this working (good instructions)

i'm getting about 6 seconds delay (wifi to wifi) using the settings as described. Does that sound about right or could i do better?
by bouncymat
Fri May 31, 2013 9:12 am
Forum: Staffroom, classroom and projects
Topic: If you could share 1 idea with a teacher, what would it be?
Replies: 15
Views: 3615

Re: If you could share 1 idea with a teacher, what would it

unfortunatly time has not allowed me to play with it yet..to busy working! - hopefully this term i might get to have a go.
by bouncymat
Fri May 24, 2013 5:22 am
Forum: Camera board
Topic: h264 Converter...
Replies: 9
Views: 5394

Re: h264 Converter...

I really don't know alot about this but...
i copied the h264 file to a pc.
open VLC
click 'Media'
select 'Convert/Save'
add file to list
......
by bouncymat
Thu May 16, 2013 5:40 am
Forum: Automation, sensing and robotics
Topic: help with servoblaster
Replies: 4
Views: 1533

Re: help with servoblaster

No I couldn't get anything to work- I think the pwm was not good enough!?...I am a proper beginner though.
I gave up for a while but have just got a adafruit servo board to try... Connected it to a servo yesterday and it worked straight away, I hope to try it on the esc later today.
by bouncymat
Wed May 15, 2013 5:10 pm
Forum: Python
Topic: python arrow control
Replies: 3
Views: 10861

Re: python arrow control

Thankyou, that helps explain what is happening. I did try pygame first but not successfuly. I'll give it another go.
by bouncymat
Fri May 03, 2013 11:53 am
Forum: Python
Topic: python arrow control
Replies: 3
Views: 10861

python arrow control

hi i am trying to use arrrow keys to control a RC car. I found some code here http://www.raspberrypi.org/phpBB3/viewtopic.php?f=32&t=41195 which uses 'curses' and it works really well. i need to add a few more lines which will allow the car to stop or go straight, i have added a few lines at the end...
by bouncymat
Mon Apr 29, 2013 9:07 pm
Forum: General discussion
Topic: Pi as WiFi AP
Replies: 2
Views: 513

Re: Pi as WiFi AP

hi, i am not an expert, i spent a couple of weeks failing at this following various tutorials but the other day i found.... https://github.com/harryallerston/RPI-Wireless-Hotspot/ in the networking section. and i am using this adaptor http://www.amazon.co.uk/gp/product/B008BZAZ1U/ref=oh_details_o01_...
by bouncymat
Tue Apr 23, 2013 2:47 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: SPI mcp3008
Replies: 4
Views: 3980

Re: SPI mcp3008

Brilliant - thankyou
tried it and it works.
by bouncymat
Mon Apr 22, 2013 8:38 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: SPI mcp3008
Replies: 4
Views: 3980

SPI mcp3008

hi I have been trying for quite some time to work this out but I just cant get there. I have a mcp3008 connected up as shown here (but without the cobbler) http://jeremyblythe.blogspot.co.uk/2012/09/raspberry-pi-hardware-spi-analog-inputs.html and followed the instructions both there and here http:/...
by bouncymat
Wed Apr 17, 2013 3:43 pm
Forum: General discussion
Topic: PIUI-sd cards
Replies: 0
Views: 284

PIUI-sd cards

hi I read this and want to have a go http://www.raspberrypi.org/archives/3583 I have tried the hard way and I can't get it to work ... I suspect my Linux knowledge is not there yet, so I thought I would try the easy way.( https://github.com/dps/piui ) and just download the image files. I cant work o...
by bouncymat
Wed Apr 17, 2013 5:24 am
Forum: General discussion
Topic: I made a Raspberry PI Laptop
Replies: 840
Views: 412642

Re: I made a Raspberry PI Laptop

Hi The HDMI connection on my lapdock has broken (assisted my some tiny hands) This part https://www.dropbox.com/s/5v0mo384ijjitcw/IMAG0424.jpg So does anyone have one they don't want, possibly from a broken lapdock, which i could buy or know of a better forum to try asking in. Thanks Mat original th...
by bouncymat
Wed Apr 17, 2013 5:17 am
Forum: General discussion
Topic: Lapdock HELP
Replies: 2
Views: 1281

Re: Lapdock HELP

I had thought about soldering it but there are (as far as I can tell) 19 different wires and they are all pretty tiny and I have very big hands! I expect that i'll end up having a go at soldering, I just need to find a magnifying glass and make a new tip for my soldering iron. thanks I'll try postin...
by bouncymat
Tue Apr 16, 2013 12:26 pm
Forum: General discussion
Topic: Lapdock HELP
Replies: 2
Views: 1281

Lapdock HELP

so last night i found out what happens if a 3 yr old pulls the hdmi cable out of the lapdock. the HDMI connector on my lapdock is broken. This part. https://www.dropbox.com/s/5v0mo384ijjitcw/IMAG0424.jpg (not sure if that image worked - here is the link https://www.dropbox.com/s/5v0mo384ijjitcw/IMAG...
by bouncymat
Sun Apr 07, 2013 10:09 pm
Forum: Beginners
Topic: remove history/logs
Replies: 6
Views: 8755

Re: remove history/logs

Thanks, I have done that. I found the bash history file and removed it.

I'm pretty much where I want to be with it now.

Thankyou,
Mat
by bouncymat
Sun Apr 07, 2013 6:51 am
Forum: Beginners
Topic: remove history/logs
Replies: 6
Views: 8755

Re: remove history/logs

So I cannot do it while the pi is running off the card, is that because the files are being used?

I'll give it a try, thanks.
by bouncymat
Sun Apr 07, 2013 4:53 am
Forum: Staffroom, classroom and projects
Topic: Better comunicate to parents about Pi goodness
Replies: 6
Views: 2454

Re: Better comunicate to parents about Pi goodness

I was talking to a parent recently - she was concerned about buying her son a pi as he was hoping to use it to play games, i explained to her that even if that was 'all' her son ended up doing, setting it up and making it possible to play games on would in itself be an educational experience. Some p...
by bouncymat
Sun Apr 07, 2013 4:06 am
Forum: Beginners
Topic: remove history/logs
Replies: 6
Views: 8755

Re: remove history/logs

thankyou Jim but i already know all of that (it is in my post?) What i would like to know is how to make my installation appear as if it had not been used before - remove the history of commands issued from the terminal, remove any browsing history that it contains (not sure that it does) and make i...
by bouncymat
Sat Apr 06, 2013 7:19 pm
Forum: Beginners
Topic: remove history/logs
Replies: 6
Views: 8755

remove history/logs

i have been setting up the RPis for our school. The idea being that i set one up as i want them all to be then copy that card however many times i need to. I have : expanded the partition by a little (to make more space but not so much as to restrict the size of card it can be put on) updated and up...
by bouncymat
Fri Mar 29, 2013 5:24 am
Forum: Automation, sensing and robotics
Topic: help with servoblaster
Replies: 4
Views: 1533

Re: help with servoblaster

wow almost as many views in one night!! no, i'm pretty sure it is me not servoblaster. i have ordered another RPi (not specifically for this) so i will test with that when it arrives asell. this is the paperwork i have - http://www.hobbyking.com/hobbyking/store/uploads/981522291X561242X33.pdf or htt...
by bouncymat
Thu Mar 28, 2013 10:44 pm
Forum: Automation, sensing and robotics
Topic: help with servoblaster
Replies: 4
Views: 1533

help with servoblaster

originally posted in general programming, one week and 38 views later i thought i would try in here. I am trying to start a rc aeroplane motor using a esc (electrinoic speed controller) connected to a RPi using servoblaster to send the pwm . I have followed the instructions here - http://www.scribd...
by bouncymat
Sun Mar 24, 2013 10:38 pm
Forum: General programming discussion
Topic: help with servoblaster
Replies: 1
Views: 529

Re: help with servoblaster

i forgot to say that the esc requires the throttle stick to be at the bottom prior to battery connection - i believe that this is a safety feature.

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