How to stream video from your RasPiCam to your Nexus 7 tablet using VLC

 Raspberry Pi Camera, Raspberry Pi Hardware  64 Responses »
May 192013
 
How to stream video from your RasPiCam to your Nexus 7 tablet using VLC

Yesterday I went to the Cambridge Jam. It was a very good Jam. I met four members of the Raspberry Pi Foundation and they were all extremely nice people. I took three demos with me: Gertboard “Whackadoodle” Wii controller Wii controller nunchuk Guzunty car RasPiCamCorder I had the RasPiCamcorder streaming live video to my PC via my phone as WiFi router. It worked quite well, but with poor latency. It took several seconds for changes to appear on the screen. I hadn’t had time to monkey about with the commands and was streaming 1080p at […more…]

How to make a standalone camcorder from your Raspberry Pi and RasPiCam

 Electronics, Raspberry Pi Camera, Raspberry Pi Hardware  26 Responses »
May 172013
 
How to make a standalone camcorder from your Raspberry Pi and RasPiCam

On day 2 of Raspberry Pi Camera ownership I decided it was time to make the new RasPiCam into a camcorder that could be taken anywhere and used to shoot video. Hold on, there’s issues with that aren’t there? Sure there are, but there’s ways round ’em too ;) So here’s how I did it. I’ll be taking this to the Cambridge Jam tomorrow. :) Ingredients 1 Switching regulator 1 Bluetooth serial adaptor 1 Raspberry Pi with latest updated Raspbian 1 Raspberry Pi Camera Connectors for battery, reg and Bluetooth adaptor 1 power source (I’m […more…]

How to shoot video and convert it to something you can edit in Pinnacle and other programs

 Linux usage, Raspberry Pi Camera, Raspberry Pi Hardware  2 Responses »
May 162013
 
How to shoot video and convert it to something you can edit in Pinnacle and other programs

Yesterday I got my shiny new “RasPiCam” Raspberry Pi camera module about half an hour before I had to go out and teach. Being a good boy scout (although I never was one) I was ready for it and had it up and running within five minutes of it coming through the letterbox. But when I got back from school, I shot some test videos that I wanted to edit and publish. You know how it is. You have to publish something on day 1 or it didn’t happen, right? :) I knew there must […more…]

Cyntech GPIO Breakout Paddle Board Review

 Input and Output, interfacing, Raspberry Pi Hardware, Review  5 Responses »
Apr 282013
 
Cyntech GPIO Breakout Paddle Board Review

The Cyntech GPIO paddle board is a new type of breakout board for the Raspberry Pi. It’s nice and small (about half the size of the Pi) elegantly simple, and I like the connectors. To connect a wire, you hold down the orange tab, push your wire into the hole and release the tab. The wire is gripped by a spring-loaded contact. It comes with a very nice “rainbow” ribbon cable, which is much more cheerful to look at than a grey one and it’s a decent 20cm length as well. You don’t always want […more…]

How to use soft PWM in RPi.GPIO 0.5.2a pt 2 – led dimming and motor speed control

 Electronics, Input and Output, interfacing, python programming, Raspberry Pi Hardware  38 Responses »
Apr 212013
 
How to use soft PWM in RPi.GPIO 0.5.2a pt 2 - led dimming and motor speed control

In part 1 of this series, we looked at the basic commands for using software pulse-width modulation (PWM) in RPi.GPIO 0.5.2a and higher. In this article we’ll get a bit more hands-on and into some practical applications for it. It’s all very well being able to make nice square-wave pulses on an oscilloscope, but what’s it actually useful for? Our servo said? EEEEH AAAAH I tried using RPi.GPIO soft PWM with servos in response to a query after the last article, but, although it did change the servo positions, it was jittery. Servos require quite […more…]

Raspberry Pi in the classroom (Y5) – sensors and switching

 Input and Output, interfacing, python programming, raspberry pi, Raspberry Pi Hardware  1 Response »
Apr 142013
 
Raspberry Pi in the classroom (Y5) - sensors and switching

Back in November I made a Raspberry Pi controlled “light and fan relay switching” demo that you may have seen before on the Official Raspberry Pi blog. Before it appeared on the Raspberry Pi web site, I’d previously displayed it at Milton Keynes and Oxford Raspberry Jams and I’d also taken it along to let my year 5 ICT class have a go with it. Did they like it? You can see for yourselves in the video what the year 5s thought of it. I didn’t tell them what was going to happen, as I […more…]

DesignSpark and RasPi.TV flying the flag in China

 Electronics, Input and Output, interfacing, Raspberry Pi Hardware  7 Responses »
Apr 122013
 
DesignSpark and RasPi.TV flying the flag in China

Mike Brojak from DesignSpark, whose voice you can hear in the video, asked me to put together a Wii controller flag-waving demo (plus other bits) on their new PiGo board. You may remember catching a glimpse of it in the flag waving video I produced a few weeks ago? This demo was destined for the Electronica exhibition in Shanghai, and I’ve just received a link to a little video the guys shot while they were there. (Thanks Yan :) ) Apparently it was well received, worked really well and only needed rebooting once in three […more…]

Guzunty Pi – Open Source CPLD board for the Raspberry Pi

 Electronics, Input and Output, interfacing, Raspberry Pi Hardware, Review  65 Responses »
Mar 282013
 
Guzunty Pi - Open Source CPLD board for the Raspberry Pi

The Guzunty Pi board is an open source Complex Programmable Logic Device (CPLD) add-on for the Raspberry Pi. Derek Campbell is behind this project, and has clearly spent a lot of time and effort putting it all together. He describes it… “a CPLD is like several large breadboards laid out on your desk, full of every combination of logic devices you are ever going to need. It is waiting to be told what to do. It doesn’t need a host of jumper wires like a breadboard would. It can be reprogrammed again and again (even […more…]

 Older Entries  Newer Entries