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Tips & walkthroughs

 

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I found this amazing tutorial that breaks down Path Planning so even *I* can understand it. I thought many of you might appreociate it and the other links I have … Read more
Provides Guidance in Planning Robot motion
My friend Jon Hylands had asked a simple question the other day as to whether I used Finite State Machines in my code.     I quipped back "Of course! Is there … Read more
Alternative way to get diagnostic data while minimizing timing impact generated by the Serial.print function.
While developing routines for my rover, especially diagnostic routines to identify sensor errors or conflicts, I have been using the Serial.print() function.   … Read more
Our honored LMR founder Frits has been contacted by marcmart.com an electronics distributor. They asked him about writing a review for a Makeblock product. So Frits … Read more
Plug in up to 4 servos - the servo wires will be extended through a single CAT6 cable
Now there is a clean and simple way to extend servo wires using a CAT6 cable. These CAT6 extension boards allow the user to plug up to four servos into the row pins … Read more
Information on the Picaxe 28 project board
I was working on my LMR robot and I made this Picaxe 28 information picture for my upcoming robot article. I modified this picture to show the ports and mine has my … Read more
Build real-world embedded solutions get and learn how to use a +40 I/O (16 PWM's) microcontroller board for $12, lab-based course.
Using a
Do you want to learn real robotics from inside? (Updated 2015-course)  UPDATE 22-Jan-2015: Course has just started! So today we started the new course 2015. We … Read more
Teaches the basics of PID-based line following, wins you a couple of line following competitions!
UPDATE : (07/10/2014) Added a PDF version of this tutorial and a sample video of a PID based Line Follower. UPDATE : ( 01/16/2014 ) A few updates on making things … Read more
For object avoidance, the ultrasonic or the ir range finders do not always see and object and i often notice my robot running into things and getting stuck. I … Read more
Sometimes the pins you want to use on a microcontroller are this type.
An open collector or open drain are output pins that are made of a transistor with no connection on top. Without external circuitry they can't really be used. What … Read more
First off I have found no way to get gEDA and PCB to work properly in Windows. RobotGrrl used/uses it on her Apple machine. Read more
Gives all directions for two motors
I designed this circuit for those interested in controlling motors that require a lot of Amperage, but have gotten frustrated over trying to create a MOSFET … Read more
Tutorial about how to teach your BoB Biped to walk
Introduction This tutorial show a way to teach your BoB to walk and turn in an interactive process.  For using the Poser software you will need a real BoB biped. … Read more
Controls two bi-directional low power DC motors
Hello LMRians, Ever tried using the pololu tb6612fng dual motor driver? Quite handy if you are thinking of controlling two low powered DC motors. It can handle a … Read more
reads gcode from the serial line, moves stepper motors
I've been playing with the Adafruit Motor Shield v2 for some upcoming projects. I wrote a simple Gcode interpreter. With this you can write commands on the serial … Read more
Robust superstructure which can be relocated to other vehicles
I have written this to assist any other builders out there who have been thinking of using Maker Beam. I decided that I wanted to build a more rugged … Read more
Read RFID tags from the Parallax RFID reader on the Raspi
How to connect the Parallax RFID Serial Reader to the Raspberry Pi safely. Using a Logic Level Converter from SparkFun to step down the 5V serial from the reader … Read more
Breadboard Propeller and programming with Linux and PropGCC
Using a
Writing program in C with propgcc on Ubuntu Linux so you can compile and load the Parallax Propeller with Linux and C rather than Windoze and Spin. The video is … Read more
Determine the distance to a detected object with a single camera and no other sensors
If you have OpenCV code that draws a rectangle around a detected object but want the code to know the distance to the object, no need to add another camera or any … Read more