Let's Make Robots!

Tips & walkthroughs

I updated my program with full insert and delete. No networking or display. No plus formatting. Just a good E-Prom editor. Make sure you have strings before using … Read more
Transmits video signals to your computer using Wifi
Ever wanted to give your robot some eyes? Or see what the robot sees? Or have openCV cababilities for your robot? Well I have found a viable program for you, … Read more
Keeps track of small things that get lost easily
Unless you paid a lot more for your multimeter than I did, you probably only got one pretty all-purpose set of probes that look like little darts without feathers … Read more
Pro: sticks well cheap? easy to use   Cons: kinda dangerous...got burned several times... some are very flimsy, so be careful may be frustrating Read more
Shift registers has been mention again and again to free pins for both input and output. This is just another example. I need a LCD display, some buttons, sd card … Read more
(How to make your own distance measurements similar to Sharps.)
Note: Apologies to OddBot. It seems I posted something he has already explored. My mistake for not reading his page(s) more carefully. I thought they were just … Read more
RCArduinoFastLib in action in an off road RC Car
Another post in the RC Arduino series relating to Reading RC Signals and controlling RC Vehicles. This one uses the RCArduinoFastLib to read a PPM Stream from a … Read more
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