Let's Make Robots!

Tips & walkthroughs


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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
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
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
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
How To - View the assembly generated for your Arduino sketch
Hi, Here is a quick walk through of a simple process for viewing Arduino assembler - … Read more
Generates sound effects, music, drum track, gun shots anything, its a full wavetable synth
Hi, As there is a current forum topic asking for tips on adding sound to robots Its a good opportunity to introduce the Illutron B four voice wavetable … Read more
Drive Speakers From uC Using Only Six Components
A Quote on the home page of lets make robots says - 'official information: It is fashionable to make robots that interacts with you, and/or are partly remote … Read more
Allows control of upto 10 servos using only two Arduino Pin to drive a decade counter
Hi,    This not a newly discovered technique, its been around for decades, but here is my explanation of how it works, a test sketch and also a ready made library … Read more