Let's Make Robots!

Tips & walkthroughs

PolyMorph - how to make a pivot joint out of PolyMorph
PolyMorph Workshop 1 Here is the first in a series of PolyMorph workshops that will unfold when time permits. The first one shows a number of techniques that can be … Read more
Add a cheap ADC converter to your next microcontroller project using a few basic parts.
Ever find yourself in need of some extra ADC capabilities? Maybe you have a micro with no ADC built in, maybe you've used up all your ADC pins already, or maybe the … Read more
Takes PWM signals then feeds to an H-Bridge
Okey Dokey,  What I Have here is a relatively simple way to control 2 low to mid current motors with no fancy integrated circuits. This is just a nothing special … 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
Basic instructions on how to add one of the most commonly available fuel cells to your next project.
Fuel cells! Power source of the future! Ever thought it would be cool to have one of these things powering your next big project? Well now you can, because I'm … Read more
RF communication link between two Arduinos
This Tip/Walk-Through will guide you through a simple one way communication link between two Arduinos. The Project uses these RX/TX Radio Frequency (RF) Link … Read more
How to produce cheap and environment friendly body parts
Hi, LMR! Today we are going to produce some body parts for our robots using glue and paper. Yes, just glue and paper! This is a little introduction into … Read more
I equipped my robot with gripper for moving the objests. Based on questions I will try to explain the construction and operation. This gripper is intended to hold … Read more
Make or duplicate just about anything with Smooth-On liquid plastics
It is all detailed in the Attached pdf file, You can use the same basic method to mold or duplicate almost any part you need for any project. Read more
Allows your robot to see and track nearby objects
The purpose of this cheap, easy to make eye is to allow your robot to track movement of nearby objects (within 200mm). After much experimentation and various … Read more
Drives 2 DC brushed motors. Holds 4A per motor.
Need a 8A  motor driver but don't have a lot of cash, look no further this article describes a simple and cheap solution. This project uses just few electronic … Read more
Makes your servo moves in a smooth way
                          I’ve been working on this for a while and finally I have the courage to post the results. Read more
I decided to build a pan/tilt mount using the DAGU parts I recently received. I did have a little trouble, but overall I'm pleased with the result.  You may notice … Read more
regulates my battery voltage, supplies 6V for motors and servos, 5V for logic
This walk through is heavily based on OddBot's walk through, "Once you've decided on batteries, how do you regulate the voltage?" I highly recommend that you read … Read more
Forget making a LED blink. how do you even get it to turn on? This is a walkthrough for making an LED turn on and off at will, in a small beacon for a robot's … Read more
Introduces Arduino Programming to PICAXE users
There has been a lot of interest in stepping up to the Arduino by PICAXE users. Since the Arduino programming laguage is "C" like and not "BASIC", there are … Read more
Converts the servo for use as a geared motor
It’s always good to have servos that works like a geared motor. That also can go in both direction and speed is adjustable, it’s very handy in robotic project … Read more
Charge your batteries when you can't find the charger (DELETED)
Due to the large number of comments detailing the dangerousness of this, I have decided to delete it. An admin can fully erase this post if they wish. Read more
While building my own 'Start Here' robot, I made a goof. I soldered on about 12 inches of 18 ga stranded wire to the motor contacts. Even though I reinforced it … 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