Let's Make Robots!

Most Collected: Tip/walkthrough

Control a Servo with a Ping Sensor in about 5 minutes
Using a
When I did the Web Clicker, I picked up a copy of ViewPort for debugging and it was a lifesaver.  ViewPort was designed by Hanno Sander.  He also developed an … Read more
Provides encoder measurements to a geared motor
Recently I hacked some servos for fun. While I had the servos open and had removed all the electronics, it occurred to me that there was a lot of space in there … Read more
Update 26/04/2009 I have added a video to show the picaxe modifying the servo signal based on the output from a Maxbotix EZ0 (EZ1 version here at LMR). The … Read more
***This post started as a poke at rik and his lack of ability to cut brass tube. As it seems people have gotten something from it. Here is a nice, nifty and proper … Read more
In this tutorial, I'll show you how to use the Parallax Serial Terminal for debugging with the Propeller.  This builds on my other tutorials which you can find … Read more
These are instructions for the optiboot bootloader shipped with Arduino 1.0
Optiboot works with ATmega168 but, to return the correct chip signature, for ATmega168P some changes must be done. The easy solution is to copy attached file to the … Read more
ER900TRS: An extremely smart little module. You just give it some volts, and a serial string, and it transmits it over air to another ER900TRS. This one can be … Read more
changes pins, very fast
I tested the difference in speed between the Arduino digitalWrite() function, and other methods of direct port manipulation. The results are surprising, check it … Read more
Saves time and avoids many related coding mistakes.
I have been learning about programming for years. More recently, I have been taught that magic numbers or constants should not be hard coded deep in your program. … Read more
homemade PCB through the heat transfer method and muriatic acid + hydrogen peroxide etching
There is an available pletora of how-to description regarding home made PCB boards. These are built around three different core trace transfer methods, the … Read more
Shift registers has been mention again and again to free pins for both input and output. This is just another example. I need a LCD display, some buttons, sd card … 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
If you are building a walking Robot, you will pull out your hair when trying to optimize the leg's movements. I had this idea; I had a digital camera, I strapped on … Read more
Takes servo outputs and sticks them in a Picaxe
Using a
I had asked in a forum post if a picaxe could "read" a servo output comming from another source... Thanks to the OddBot, as he nailed it. By the way, O.B. I simply … Read more