Let's Make Robots!

Tips & walkthroughs

uses ffmpeg to add the LMR logo to video
   I just uploaded a video of my latest robot to YouTube.  I wanted to add the LMR logo, but I didn't know how.  Here is the result of my efforts.  I run on … Read more
 I recently read two great tutorials from gadget gangster on how to write to and read from SD card. Now this is great if you want to write pre-set text. But … Read more
Use a 38kHz remote control receiver sensor for detecting objects and avoid collision.
Do you want to know how to use cheap infrared receiver sensors to detect objects? How to build a Single or Dual proximity sensor and determine fast if you have … Read more
Reveals yet another cheap method of making PCB's at home.
Hi all, Yes you read the title right, I'm going to describe here the method I used to create the above PCB using an INKJET printer. Prerequisites: 1. Inkjet printer … Read more
make motorcontrollers/pcb's survive abuse
Did you know you can solder solid core wire on motorcontrollers and pcb's to make them survive abuse in extreme conditions. Think about it, pcb traces are thin and … 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
Servos bring life to our ideas. Servos can be mysterious, but in fact they are very simple. Servos use a simple electronic pulse to tell them what angle you want … Read more
A comparison between Kalman and Complementary filter
Using a
The use of accelerometer and gyroscope to build little robots, such as the self-balancing, requires a math filter in order to merge the signals returned by the … Read more
Introduction SPURT stands for School Project Using Robot Technology, a concept introduced by the Rostock University, in Germany. You can find more about their … Read more
Adaptor for extending USB cables
Is your USB cable to short.............. ..... then look no further here is the ideal solution.... using your printer cable (as they tend to be extra … Read more
Hello Folks. I want to share with all what happened to me, why I was being wrong and what I learned:   The preface: I'm making a police-style led flasher for an RC … Read more
During my work on my ROV project I considered several ways of waterproofing the motors used as thrusters. There are many that use bilge pumps as they are already … Read more
This is often referred to as STT (speech to text) and TTS (text to speech).  When I started with computers (eons ago) there were crude text to speech programs. … Read more
I've noticed alot of posts lately have been about faulty power supplies, mainly because they are utilizing a 9V battery in their circuit. 9V batteries are intended … Read more
12 servos controller with Arduino
Building a robot with wheels or with legs needs a design completly different. One of the biggest difference is the type and number of motors. While for a robot … Read more
Provides you with cheap alternative energy.
 Well, I just thought I'd post what I've learned about solar panels in the past month. They are actually quite simple to make and will cost you alot less then … Read more
Most of you probably do this all the time, but it might be a helpful tip to any newcomer. One way to reduce noise in robots is to always twist power cables. It … Read more
I have been revamping the code for Mr. Tidy and it has grown large enough (23Kb when compiled) to be a real headache to scroll through. I know that some IDE's solve … Read more
How to use timer and interrupts on Arduino boards.
    Update 07/24/2013 04/24/2013 Example 3 has been updated to work with Arduino v1.x.Added ArduinoTimer101.zip examples source code for Arduino v1.x .    Read more
Prevents component smoke and getting your DVM
Simple tip. I have been using it since I was a kid playing with rockets. I like to tie a knot in the NEG lead of a wire to document POS and NEG. If I am using … Read more