Let's Make Robots!

Most Collected: Tip/walkthrough

Howto interface QRD1114 line sensor
Hi, everyone! Few days ago one of our new members asked for help with QRD1114. I decided to answer in form of walkthrough, so others can benefit from it as … 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
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 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
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
Expands PWM outputs for servo control
     Those who intend to build a more complex project (in this case I mean with more DOFs, like a hexapod, biped humanoid and others) may find dificulties if … 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
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
Add 10-bit incremental / absolute encoder feedback to your hobby servo.
Modified continuous-rotation servos are used extensively by roboticists due to their small form-factor, enclosed motor-gearbox, ease of mounting and … Read more
Communicates with your pc to control your robot
The wiimote is a really cool controller to use with your robots. It has many buttons, accelerometers and even a camera which tells the coordinates of the four … Read more
Sensibilizes about the delay() function
Whenever you use delays in your robot code your microcontroller is going to do nothing but wait until the delay is passed. Where on one hand this is a blessing it … Read more