Let's Make Robots!
Rotary Encoder - For positional feedback of a Geared Motor
 My Latest Project "Swiss Milka Cow" needs some Positional feedback on 3 of its motors. What follows is my Solution using a Standard Geared Motor and a QRD1114 … 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
There are three commands in Picaxe Basic that you can use for making sounds/music on the Picaxe. I posted my code as a file attachment, and there are some examples … Read more
If you are running out of input/output pins of your Picaxe here's something that might help you: Picaxe's configurable input/output pins can be used in three … Read more
Generating video to display basic text and information
I thought I'd show how video is generated with the Propeller as an example of multi-tasking and because video is cool.  Read more
My old printer broke down and before throwing anything away I always rip things apart hunting for parts that I can use in other projects. Most of you probably does … Read more
Make your robot to 2 (or 3, or 4, or 5, or 6, or 7) things at the same time
This is part 0 of a multi-part series.  The other parts are here. Read more
Driving motors at low speed with good torque
Many micro controllers have a PWM function built into their hardware that can be used to control the speed of motors or be filtered to create an analog output. … Read more
When building stuff I often need some sort of bracket or other fixture involving sheet metal. Read more
Controlling Picaxe microcontrollers with a computer or let them communicate
Using a
On general demand (ok, Fritsl asked me...), I will show and explain you how to let several Picaxe microcontrollers communicate with each other or how to control a … Read more
Transforms your Bland Bot into a Mega Rainbow Hippie
 How to Colour Your PolyMorph...........  Its taken me around 8 months to find the solution to colouring PolyMorph. Then i struck it lucky... an Artist Friend … Read more
Gives out blindingly Bright Light
Ever Needed a bright light source for your Robotic Projects. This Walkthrough will guide you through two Versions. Version 1 :- Discreet PWM driver, with dimmer … Read more
This might be useful for anyone building self-balancing robots or similar projects
This article introduces an  implementation of a simplified filtering algorithm that was inspired by Kalman filter. The Arduino code is tested using a 5DOF IMU unit … Read more
Joins a 5mm shaft with an 8mm lead screw
Introduction Couplings are expensive, but tubing and Shapelock (Polymorph) is cheap.  This is a cheap way to build a coupling between a 5mm stepper and an M8 … Read more
Basic principles in PCB design
I thought this could come handy. EMI and power surge problems are common in digital circuit design. The following list is a compilation of suggestions I have … Read more
Demonstration of How To Solder
Demonstration of how to solder.  Further info on how to solder: http://www.instructables.com/id/How-to-solder/ and … Read more
Turn your servo into a powerful linear actuator
Provided you have the tools and the servo you can built this for under a couple of bucks. The actuator extends with a rate of about 50mm/min. It is rather slow but … Read more
A simple explanation of IMU devices that does not require any advanced math.
 The full up-to-date text of article can be accessed here: http://starlino.com/imu_guide.html This guide is intended to everyone interested in inertial MEMS … Read more
Uses current generated on coils in stepper to act as an encoder
Pretty simple circuit I found, you may have to play with the resistor values to get the output to logic level depending on your steppper.It uses two voltage … Read more