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Summer Break 1 Jul 2013 | 03:01 am
It’s that time of year again: 1st of July, and time for me to take a break. Just as last year, this is going to be my last post on this JeeLabs weblog post for a while – two months to be exact. This ...
From PWM to voltage 30 Jun 2013 | 03:01 am
The Arduino library has always had an “analogWrite()” function, even though the ATmega doesn’t have any way to generate a varying voltage. So why the name? Well, what most microcontrollers can do is ...
FanBot Registration System 29 Jun 2013 | 03:01 am
Nearly 400 FanBots have already been built – see this page and the KekBot weblog. To finish this little series, I wanted to describe the little setup I built and how it was done. Nothing spectacular,...
Status of the RFM12B 28 Jun 2013 | 03:01 am
The RFM12B wireless radio module has been around for quite some time. When I found out about it at the time, I really liked the mix of features it provided – far more capable than the morse-code like ...
Meet the FanBot 27 Jun 2013 | 03:01 am
The FanBot is a very simple robot based on a small PCB with microcontroller by Peter Brier, some LEDs as eyes and mouth, and a servo to allow the robot to wave its arms: Over a thousand boards have b...
Packaged but not virtualised 26 Jun 2013 | 03:01 am
Since VMware started virtualising x86 hardware many years ago, many uses have been found for this approach of creating fully self-contained software environments. I’ve used VMware many years, and was ...
FanBots at RoboCup 2013 25 Jun 2013 | 03:01 am
There’s an event coming up in a few days in Eindhoven, called the RoboCup 2013: This is the world championship of robotic football. For all ages, and with various levels of sophistication. Some robot...
Using eMMC as root disk 24 Jun 2013 | 03:01 am
The Odroid/U2 mentioned yesterday also has the option to add an eMMC card, right next to the µSD card slot – I went for a whopping 64 GB “SSD” in this case: The reason to use this, is that it’s indee...
More about the Odroid/U2 23 Jun 2013 | 03:01 am
As mentioned recently, there are many alternatives to the Raspberry Pi. I’m looking mostly at ARM-based systems these days, because Node.js support for MIPS is not really there (yet?), and you really ...
Storage – let’s do the math 22 Jun 2013 | 03:01 am
Doesn’t it ever end? Storage density, I mean: That’s a 16 GB µSD card. There are also 64 GB cards, but they are a bit more expensive. Ok, let’s see – that’s 0.7 x 11 x 15 mm = 115.5 mm3 in volume. Now...
