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by meltwater
Thu Feb 06, 2014 1:11 pm
Forum: Off topic discussion
Topic: Does WirelessUSB exist?
Replies: 19
Views: 2286

Re: Does WirelessUSB exist?

The bluetooth solution would work, only difference would be programming over serial port rather than USB.
by meltwater
Wed Feb 05, 2014 7:21 pm
Forum: Off topic discussion
Topic: Does WirelessUSB exist?
Replies: 19
Views: 2286

Re: Does WirelessUSB exist?

Engineers NEVER say no. They just say it will cost you more and take longer.
by meltwater
Wed Feb 05, 2014 4:32 pm
Forum: Off topic discussion
Topic: Does WirelessUSB exist?
Replies: 19
Views: 2286

Re: Does WirelessUSB exist?

Saw the bluetooth dongle, very neat. Note if you just want wireless debug then a normal serial bluetooth module will work nicely (but for programming the additional signals are needed). One solution for wireless USB is using USB over network, I think there is one which is supported on the RPi, altho...
by meltwater
Wed Feb 05, 2014 3:43 pm
Forum: Off topic discussion
Topic: Did anybody hear about Bletchley Park
Replies: 13
Views: 2189

Re: Did anybody hear about Bletchley Park

From the time I went a long time ago as a kid (when the computer museum was part of the tour) I recall that the whole thing was as boring as hell (to a kid)...until we got to the computer museum. We've never considered going back since we looked at the ticket prices and decided it wasn't worth it, n...
by meltwater
Wed Feb 05, 2014 9:22 am
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

simplesi wrote:I wrote a little line following script and here it is in action using the Thymio

https://vine.co/v/MaMulwFqd5p
Soon have it cleaning the floors and fetching the tea!
by meltwater
Mon Feb 03, 2014 4:44 pm
Forum: Off topic discussion
Topic: Dream projects?
Replies: 22
Views: 6560

Re: Dream projects?

During "sleep" (battery charge time) the skutter could... Actually, for me I would just be pleased to develop something capable of plugging itself into a wall socket (any standard wall socket, not a specially marked "nest") when necessary. As for the really ambitious stuff like washing the dishes, ...
by meltwater
Mon Feb 03, 2014 2:09 pm
Forum: Off topic discussion
Topic: Dream projects?
Replies: 22
Views: 6560

Re: Dream projects?

I'm rather taken with this RS4 robot at the moment:
http://letsmakerobots.com/node/38610

The self balancing aspect of it is really good, certainly more interesting than a little buggy bot. Reminds me of the telepresence bots which we are all supposed to have by now.
by meltwater
Thu Jan 30, 2014 8:55 pm
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

One similar to that one from ebay, would be the one by Dawn Robotics: http://www.dawnrobotics.co.uk/raspberry-pi-camera-robot-chassis-bundle-excludes-pi-camera-wifi-and-sd-card/ Both lack the onboard sensors (IR proximity), feedback (lights/accelerometer) and control (buttons), which the Thymio has....
by meltwater
Thu Jan 30, 2014 9:16 am
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

Makes me want one!
by meltwater
Tue Jan 28, 2014 10:15 am
Forum: Staffroom, classroom and projects
Topic: Redesigning the soldering iron!
Replies: 49
Views: 12962

Re: Redesigning the soldering iron!

A fair point about the exposed tip, it is particularly unnatural for a kid to hold and control. It may be exposed to allow suitable cooling, while having a large chunk of metal allows it to keep a steady temperature even when heating component legs. However, I would imagine the design is more histor...
by meltwater
Fri Jan 24, 2014 10:22 am
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

Yep there are lots of ways to do it, each with + & -. Cost is always a killer, since as soon as you price it out of the market there is little point adding great features. So totally understand. The IR stuff sounds interesting, they are quite useful in that sense for proximity and detection. Via ana...
by meltwater
Thu Jan 23, 2014 3:08 pm
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

That is a prebuilt bluetooth serial module, so cost price would probably be much lower if built independently. However, the certifications would be an issue (which I think is why the RPi did well to avoid built in wifi and bluetooth - despite broadcom being market leaders in them). Depending on if y...
by meltwater
Thu Jan 23, 2014 2:22 pm
Forum: Automation, sensing and robotics
Topic: Thymio II Educational Robot
Replies: 59
Views: 9540

Re: Thymio II Educational Robot

Regarding bluetooth. If the controller has serial pins, then a bluetooth module would be easy to add for around £7. The firmware would just need to respond to serial commands, as it would to USB commands. Alternatively, a small Atmel chip may well be able to sit in the middle to convert serial comma...
by meltwater
Wed Jan 22, 2014 2:39 pm
Forum: HATs and other add-ons
Topic: 2.8" TFT + Touch Shield Board v1 a/b/c
Replies: 383
Views: 207096

Re: 2.8" TFT + Touch Shield Board v1 a/b/c

Just wondering, but is there anything stopping you from using two mini-screens at once?
Would the SPI bus be able to handle the data and can the CS pins be remapped in the driver?

One screen for each eye... :geek:
by meltwater
Mon Jan 20, 2014 9:26 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: USB to I2C breakout board??
Replies: 5
Views: 2442

Re: USB to I2C breakout board??

Ok, I now better understand what you want to do. Easiest path: Add a USB-serial converter to the Pi's serial port; plug the USB end into a PC, control the Pi with a simple serial protocol (that would in turn control your tuners) Sorry I should have mentioned this early but I've already done i2c wor...
by meltwater
Mon Jan 20, 2014 6:46 pm
Forum: Python
Topic: Don your testing hats, it's WiringPi2-Python
Replies: 54
Views: 17266

Re: Don your testing hats, it's WiringPi2-Python

And what were your findings? I don't have a scope, and I'm using WiringPi2-Python to drive four daisy-chained MAX7219. I can get to drive each display for some seconds, losing them and getting garbage displayed. I think it has something to do with the clock setting, but I can't be sure (yet). I thi...
by meltwater
Mon Jan 20, 2014 6:16 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: USB to I2C breakout board??
Replies: 5
Views: 2442

Re: USB to I2C breakout board??

Interesting product, I've been looking at similar devices since it would be useful to use the same i2c devices on a normal pc too. Even connecting to an i2c io expander would be handy. If you can find out the usb protocol it uses then you'd be able to drive it using python (on both pc and pi). Unfor...
by meltwater
Sun Jan 19, 2014 10:03 am
Forum: Off topic discussion
Topic: Breadboards
Replies: 23
Views: 3678

Re: Breadboards

Accessibility of good value components and electronics is also very important for the likes of Raspberry Pi and Arduino too. Shops have had to change a lot due to internet selling, and they are still adjusting to the shift. In a lot of cases, going to the physical shop to buy something is more hassl...
by meltwater
Sun Jan 19, 2014 9:50 am
Forum: Beginners
Topic: NOOBS V1.3.4 - Analogue Video
Replies: 5
Views: 1478

Re: NOOBS V1.3.4 - Analogue Video

Didn't spot that, glad it will be covered. :)
by meltwater
Fri Jan 17, 2014 10:35 pm
Forum: Beginners
Topic: NOOBS V1.3.4 - Analogue Video
Replies: 5
Views: 1478

Re: NOOBS V1.3.4 - Analogue Video

Thanks for the answers. Re-doing it and it appears to have booted into raspi-config and is now displaying correctly on analogue video, I think what may have happened was that the "keep settings" dialogue didn't appear or I'd knocked the keyboard before seeing it. Perhaps there needs to be a sanity c...
by meltwater
Fri Jan 17, 2014 9:24 pm
Forum: Off topic discussion
Topic: Breadboards
Replies: 23
Views: 3678

Re: Breadboards

Maplins ends up being quite overpriced unfortunately, but the service is usually quite good.

I've always been pleased with my orders through Tandy (http://www.tandyonline.co.uk/) good prices and fast delivery.
by meltwater
Fri Jan 17, 2014 9:21 pm
Forum: Beginners
Topic: NOOBS V1.3.4 - Analogue Video
Replies: 5
Views: 1478

NOOBS V1.3.4 - Analogue Video

Hi All, 1st off, I've only tried this once so far and it could well be my setup but I am having problems with a NOOBS install when trying to do so through Analogue Video (RCA). I can get the NOOBS install screen displaying (with the manual selection of the video mode via 1,2,3,4), however when it ha...
by meltwater
Thu Jan 16, 2014 11:52 am
Forum: Off topic discussion
Topic: Dream projects?
Replies: 22
Views: 6560

Re: Dream projects?

I would imagine if everyone had their own Kylie [or indeed Robbie - alternative dreams are available], the modern world would probably collapse on itself (and baby-oil prices would be through the roof). That Siggraph paper on bipedal walking is really good btw. Do you have a link for that, couldn't ...
by meltwater
Thu Jan 16, 2014 11:29 am
Forum: Off topic discussion
Topic: Dream projects?
Replies: 22
Views: 6560

Dream projects?

Just wondering what projects people would like to do if they had the skills, time and money to do them? Top of my list would be a Bi-ped robot, simply because! http://www.bristol247.com/wp-content/uploads/2012/05/Bristol-Robotics-Laboratory.jpg - BRL's robot (not RPi based but excellent all the sam...
by meltwater
Thu Jan 16, 2014 11:07 am
Forum: Off topic discussion
Topic: Breadboards
Replies: 23
Views: 3678

Re: Breadboards

I can remember having that issue with a board at school (many years ago) the issue was that the board had an adhesive back for mounting. Of course, being a kid, I peeled the back off and stuck it to the table...as you do...removing it pulled the backing off and all the pins out with it. To this day,...

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