Let's Make Robots!

Most Collected: Tip/walkthrough

Description of various batteries on the market and tips for their use.
First of all I wish to credit the illustration. It is not my drawing but was 'borrowed' from … Read more
Helps you get to grips with Arduino and what it can do
New Tutorial added. Learn to use the HC-05 with Arduino.     Are you new to Arduino? A certain component? Or electronics in general? Check out my tutorial … Read more
How to relate the IR-sensor output to measurements you can understand.
You have probably noticed that the "distance" returned by a "Sharp" IR sensor is not in specific units of measure. As the IR sensor approaches an object, (or vice … Read more
Controls servos by Angle Accurately
I have always seen things differently with my electronics and programming background. Servo Math came from me seeing servos as having three parts. The angles … Read more
The IR compound eye consist of 4 simple analog sensors (up, down, left and right) that can be used to track movement of nearby objects (usually within 15cm … Read more
Let two, three or more picaxes talk to each other
Picaxe serial bus   This walkthrough shows you how to make multiple picaxe chips talk to each other using 1 line. This works for all picaxe models but I only used … Read more
Gives feedback to your robot brain...
Encoders, Encoders... Encoders can be used to provide feedback info to your pic to let it know what the mechanics of the machine are doing. In the case of this … Read more
make a cheap servo rotate forever!
Here is how I've modified cheap e-bay servo for continuous rotation, Thanks to Oddbot for his explanations :)    Servo is a SG90 ,  equivalent to HXT900... and … Read more
Burn the bootloader or write sketches directly to the MCU
The Arduino and Arduino compatible boards all use a small program called a bootloader to take serial data from your computer and store it in the Arduino's memory. … Read more
This project shows how to add text-to-speech to an Arduino project using a SpeakJet and a TTS256.
This how-to article describes an easy way to add unlimited text-to-speech to your Arduino projects (with a bit of modification to my source code below, the PicAxe, … Read more
This tutorial is an extension of my original tutorial on using motor encoders here: http://letsmakerobots.com/node/38636. This tutorial looks at some code I have … Read more
I am going to tell you how to use the same cable you use to program your Arduino with to program a Picaxe. I am sure this could also be used the other way around … Read more
Gives your robot more personality
Using a
A simple method to build robot eyes as for instance robots like NAO or DARwIn have. The drawing is nearly self-explanatory: Read more
Turn an ordinary (cheap?) RC-car into a Robot Wall Racer
Using a
UPDATE: Code now attached above + Ant has send me some tiny relays, I think they would work in this, and you could make everything 1/4 the size of what I did. Ask … Read more