Let's Make Robots!

Most Collected: Tip/walkthrough

can follow a black line on a flat lighter surface
Using a
This is a walk through for a simple line follower that can follow a black line on a lighter surface, i used black insulating tape on the floor. The robot can be … Read more
I did a brief video tutorial on Diptrace. If you're thinking of designing a circuit board, you might find it useful; Video This is the first part of a … Read more
I found this nifty resource which outlines how to change the splash screen on a full graphic LCD. He goes into pretty good detail about how to go about it but … Read more
If you have trouble when soldering, attaching wires, whatever, this might be the perfect solution. I'll be building one of these myself in a few weeks so I'll be … Read more
Joins a 5mm shaft with an 8mm lead screw
Introduction Couplings are expensive, but tubing and Shapelock (Polymorph) is cheap.  This is a cheap way to build a coupling between a 5mm stepper and an M8 … Read more
This is an old idea, finally I have the time to show it to the world. The are bottle shapes that perfectly fit together, you will see how easy it is to create a … Read more
Keeps you from looking everything up time and time again
Here is a cheat sheet that I'm working on putting together. This wasn't meant to be professional quality, just something I can look over at instead of having to … Read more
The GWS servos are extremely easy to modify to continous rotation, here is how :)
Thanks to  ndupont for this: http://letsmakerobots.com/node/4873 and to Anders for this:http://letsmakerobots.com/node/259 - Now I had some GWS-servos that I … Read more
How to get a photo-interrupter to work as an encoder
I salvaged some photo-interrupters from some printers and scanners. Thinking they would make good sensors, I decided to use them as encoders on my robot (which I … Read more
In this video I show you how to read out multiple buttons using only one ADC pin. I hope this is helpful to all of you who have not enough I/O pins left or to those … 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
Reads pulse width and calculates distance
I want to build a robot using the MSP430 value line (Texas Instruments Launchpad) that i bought for $4.30 a month ago. There are a couple of code samples from TI … Read more
I recently got in a few parts to complete my smd soldering station and I would like to share my experience along with you. I found that I have started wanting … Read more
Blocks use the { and } charcaters to create collapsable code! In the Options menu of the Picaxe-editor, check "Use Collapsing blocks" in the "editor" - tab. Then … Read more