Let's Make Robots!
Shows digits on a display using a shift register(74HC595) ,a PIC and c code
I recently killed an old cd player, and one of the parts i salvaged from it was a dual digit 7 segment display. My plan is to make the Pic send data to the shift … Read more
More Servos, Faster Refresh, New Library
A post to introduce a new library RCArduinoFastLib. The library supports upto 20 servos on an Arduino in two banks of 10. The two banks can have an independent … Read more
Demonstrates that conventional wisdom may not be correct
It's kind of taken for granted often that a 9v battery (thanks mixmar ;-) won't provide the current to drive a 3v hobby motor, especially when you run a … Read more
More Servos, Less Pins, Less Cost
Some time ago I posted a library for running ten servos from an Arduino using just 2 pins. I have extended it to 20 Servos from 4 pins. The library has a variable … Read more
makes 'handy' holes on PCBs
Do you lack power tools (power drill, dremel, etc)? are you wary to use them? are you unable to get proper drilling precision because  you lack a drill stand? … Read more
Overcomes the limitations of the RaspPi
It seems like I've seen several LMRians who've finally gotten ahold of their RaspPi say something along the lines of "I'm planning on using it to run a robot using … Read more
Organizes those resistors! And caps, and diodes...
Keep your resistors in business card holders! Make a big book O resistors!   I also organized my electrolytic caps   Read more
allows you to control large motors with position feedback
If you need to control a large motor but want it to have the same position control of a servo, you don't have to throw crazy amounts of money at it. You can … Read more
Makes an easy start to your pic project
Template files Continuing from here In the project wizard you will have selected an include file which holds all the definitions of pins and registers and a … Read more
Free development environment for microchip pics
Following on from my last post here Read more
Simulates electronic circuits.
Recently I have been learning electronics and realized that a circuit simulator could be useful.  Of course I wanted one that was easy to use and free.  After … Read more
Tastes really good
I got bored and a little hungry, okay?  Gareth convinced me in this hack that a pencil torch (He calls his "old faithful") was an indispensable tool.  Since I got … Read more
Plays Music using a DC brushed motor for a speaker
Almost all small robots have a couple of DC motors to drive the wheels. This tutorial explains how to use those motors as speakers. Theory Basically a speaker … Read more
LiPo's are great - and people tend to make them scary. Here's a few tips
First tip about Li-Po batteries: Make sure you are not searching images on lipo. The net is full of tips and clever in-depth articles on Li-Po batteries, and in … Read more
Ever since I got my hand on my first Arduino I have been impressed by the small SMD components used and thought that this is done by special machines or by some … Read more
Might please your eyes.
We had a SB discussion today. Some people got problems with the new color scheme in the Arduino IDE. Suggestions from birdmun hit my curiosity and that's the … Read more
I got asked in the shoutbox about Mplab by Ossipee and I realised there was really too much information to cover in the shoutbox so I thought I'd do a post for a … Read more
Shows how you can teach a single-axis move by using the Record/Play tactic
Using a
Did you hear about teaching a robot a move but don't know how to do that? Did you ever struggle around to make a polished mathematical way/time function more … Read more
homemade PCB through the heat transfer method and muriatic acid + hydrogen peroxide etching
There is an available pletora of how-to description regarding home made PCB boards. These are built around three different core trace transfer methods, the … Read more
Some graphs of the Sharp Sensors that could help you when designing your new robots.
Hi guys, If you have worked with Sharp IR Distance Sensors you may have noticed that they are not symmetric at all. They give high values when an object is placed … Read more