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Tag Archives: Featured

Tutorial: Sorting your Data

I was posed a question earlier this week: given an arbitrary English text, how would you pick out the 10 most common words?  On the NXT,  having a pile of sensor readings is nice but what if you need to pick the top 10 smallest or biggest ones?  How would you go about doing that?  There are no intrinsic functions ... Read More »

Little Big Data: Splunk meets NXT

Splunk is an enterprise-class machine data gathering and analysis tool, capable of consuming 100s of gigabytes of machine generated data and turning it into arbitrarily searchable data and presenting it with fancy reports and graphs.  I’ve used Splunk in the past for a project and another time to do post-mortem analysis of a hacked webserver. Since I was working on ... Read More »

SNMP on an NXT

What is SNMP? When I got my NXT2WIFI sensor from Daniele I was quite sure what I wanted to make with it:  an SNMP agent.  What is an SNMP agent, you say?  SNMP, short for Simple Network Management Protocol, is a protocol that, as you may have guessed by now, a protocol that can be used for monitoring and configuring ... Read More »

Mindsensors GlideWheel-M

The mailman brought me a cool new toy to play with this afternoon!  It’s the Mindsensors GlideWheel-M!  These are so cool, you can now use the Large XL Power Functions motor with the same degree of accuracy as an NXT motor.  The GlideWheel-M is just a single unit thick and fits very nicely onto the motor.  You can mount it ... Read More »

ROBOTC Driver Suite Tutorial

Finally, after months and months of stalling, I have started and completed a tutorial for my Driver Suite. It actually took me a lot less effort than I originally thought it would, but I am happy with the result, as I am sure you will be. The tutorial will help you setup ROBOTC to use the drivers, how the they’re ... Read More »

ROBOTC Drivers: Winding road

I don’t usually use graphs but when I do… Ever since I started writing my drivers back at the end of 2008, I would not have thought that I would now be almost at 6000 downloads. I was pouring over the stats and I noticed something quite cool.  It is not hard to tell that my main user base are ... Read More »

Dexter Industries dCompass

  Dexter Industries seem to really crank ‘em out lately with all the new sensors.  This time they’ve made a really nice compass sensor based on the Honeywell HMC5883L 3-axis digital compass IC. I’ve had the pleasure of playing with this little beauty for a little while now.  A preliminary driver will be part of version 2.5 of my driver ... Read More »

ROBOTC 2.03 for RCX Free!

Now here’s a bargain you can’t refuse.  The folks over at Robotics Academy have created an RCX-only version of ROBOTC 2.03 and made it available for everyone to download! For free, no less!  That’s a lot of exclamation points! Ever since ROBOTC 2.02+ was released without RCX support, a lot of folks were complaining about the inability to use their ... Read More »

Mindsensors Digital Pneumatic Pressure Sensor (PPS58-Nx)

Mindsensors have made a new pressure sensor and it’s really sweet.  It uses their new compact sensor housing and it’s very slick and robust looking.  Rather than calling it the PPS v3, they gave it the uebercatchy name PPS58-Nx. So what can it do?  It can measure pressure from 0 to 400 kilopascal (1 to 58 PSI) with a 1 ... Read More »

Teleop Catalyst for ROBOTC

Titus Woo posted on the ROBOTC forums about a really cool new program he’d written to make it easier for FTC teams to make a teleop program for their robot.  I’ve never done FTC but I maintain the ROBOTC forums so I see a lot of question go by during the season about the teleop (Remote Control) part of the ... Read More »