Aug 212015
Witty Pi Full Review

Back in July I did a mailbag video and got you guys to vote on which item I should do a more in-depth review of. WittyPi got about 50% of the vote by the time I had to make the decision. So here is the UUGear WittyPi review. WittyPi is an A+/B+/Pi2B add-on that gives you a safe on-off switch and enables timed shutdowns and startups of your Raspberry Pi. It has a battery-backed realtime clock (RTC) that controls the startup times and allows your Pi to retain the correct time even if not connected […more…]

Aug 122015
RPi. GPIO GPIO.getmode() function

Another new RPi.GPIO feature that I discovered last week is GPIO.getmode(). This appeared in RPi.GPIO 0.5.11 and allows you to query RPi.GPIO to see whether GPIO.setmode() has been set up as BCM, BOARD, or UNSET mode. This could be useful if you are running a suite of scripts or modules which work together. GPIO.getmode() returns… -1 if GPIO.setmode() is not set 11 if GPIO.setmode(GPIO.BCM) is active 10 if GPIO.setmode(GPIO.BOARD) is active Below you can see a live python session showing what you get when you use GPIO.getmode() with different modes set… Why Did You Bother […more…]

Aug 102015

In RPi.GPIO 0.5.10 (we’re now on 0.5.11) Ben Croston ‘deprecated’ GPIO.RPI_REVISION, which used to be the preferred way to find out what kind of Raspberry Pi board a program was running on. This was a useful feature to make it possible to write software that will work on any Pi, regardless of how its GPIO pins are arranged. To date, we’ve had three different GPIO pin header layouts for the standard Raspberry Pis (four if you count the compute module). But GPIO.RPI_REVISION has been deprecated (fallen out of favour) because there is now something better. […more…]

Aug 062015
New Official Raspberry Pi WiFi Dongle 3-way testing Vs ThePiHut and Edimax

A few weeks ago, Raspberry Pi launched a new official WiFi dongle with the following specs… 802.11 b/g/n USB 2.0 BCM43143 chipset 150Mbps maximum throughput Supports Access Point/Infrastructure mode Works with Raspbian out of the box (other OS yet to be supported) It’s been designed by the Raspberry Pi hardware team, uses a Broadcom chip and has a larger antenna than the other two dongles I’m testing it against. This makes it a little longer than the other two, but how does it stack up against them in terms of performance? That’s what we’re here […more…]

Jul 142015
RasPiO GPIO Ruler

For some time now I’ve been using the wonderful RPi.GPIO Python library by Ben Croston. It’s great for using the General Purpose Input Output (GPIO) ports on the Raspberry Pi to control things and read inputs. I’ve written at least 14 tutorials on it (listed here) over the last couple of years. But I still find myself needing to look up the exact commands to use. I’ve made a crib-sheet which is really useful, but pieces of paper get lost. What I really want is the most used commands in a portable, accessible form that […more…]

Jul 062015
RasPi.TV Mailbag - July 2015

Today we’re getting a bit interactive. I decided to do a mailbag video, showcasing six of the things people have given me or sent in over the last few months. The items in question are… PiUPS Traffic Hat Official Raspberry Pi wifi dongle Shortcrust Plus Pi 2 (& B+) case Unicorn Hat Witty Pi You Tell Me Which One You Want Reviewed In More Depth I’m off abroad soon. I haven’t got room in the case to take all of these items. Let me know which is the most interesting to you and I’ll take […more…]

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Jun 152015
Flappy Brain EEG controlled game by Albert Hickey @winkleink

At Last week-end’s Cambridge Jam I met Albert Hickey @winkleink, who showed me this extremely cool brain-wave controlled version of Flappy Bird. This is a video post, so I’ll let the video do the talking… Albert runs the Egham Raspberry Jam and his blog can be found here. He’s written the project up and shared the code there. @RasPiTV Thank you for doing this. Will have all set up to play at @EghamJam on the 12th of July. — Winkleink (@winkleink) June 15, 2015

Jun 102015
CamJam June 2015

There’s something special about the Cambridge Raspberry Jam. Firstly it’s in Cambridge, the birthplace of Raspberry Pi. Secondly it’s run by two of my good friends Mike @recantha and Tim @Geeky_Tim. Thirdly it’s held at the Institute of Astronomy, which is a brilliant venue for such an event. Fourthly, there’s always a lot of prominent Pi people there. It’s great to meet people from the community and find out what they’re up to. The June 6th Jam was a “normal” jam. There was no specific theme, but there was a full programme of talks in […more…]

Jun 062015
RasPiO Duino Goes On General Sale With Free Arduino Programming eBook

Having completed the KickStarter fulfilment a long way ahead of schedule, we’re now ready to launch RasPiO® Duino on general sale. We thought it would be nice to launch it officially today at the Cambridge Jam. What Is A RasPiO® Duino? RasPiO® Duino is a small plug-on board for Raspberry Pi. It has similar functionality to an Arduino Uno, but is fully programmable from the Raspberry Pi. Once programmed, it can be removed from the Pi and used on its own. If you’re interested in the full product description you can find that here. Free […more…]