Let's Make Robots!

Tips & walkthroughs

When Flexed or Squashed alters its Resistance
 Here are some ideas on how to make Resistance/Force Sensors - I thought them up while ago to use as antenne - Insect Feeler like sensors. (sticking out of the … Read more
communicate data to your microcontroller unit via your pc
Hello guys, this is a simple walkthrough that lets you understand how to do BASIC communication between your PC and your MCU (for now it's only from PC to MCU, … Read more
Portable, store-able, fences for robots
So I got sick of finding books, empty cases of beer and various planks of crap to use to keep bots from running into furniture and the like. I though for a while … Read more
Use an Arduino GPS Shield to Fix position,altitutude,time,date........
Using a
GPS:- The Complete Guide to Global Positioning Systems. Blogged Here :- Guide to Global Positioning Systems.   Check also:- Fundamentals of a GPS guided vehicle … Read more
Want to see what's going on? Even with "history" and zoom? Make a simple cable, download a free program and..
Aparently there are some problems with the images in this one. Since the images are not THAT important for you to get the point, I take the liberty to just direct … Read more
Teaches you how to connect a Wii Nunchuck to Arduino
You may be asking to yourself, “Why would I want to connect my Wii Nunchuck to my Arduino board?” Good question. By attaching a Wii Nunchuck to your Arduino … Read more
This is a walkthrough on how to make a simple IR controller. It is relatively cheap and easy to make. Programming is simple since the picaxe basic already has … Read more
This is imo a great way to help ppl who are new to electronics understand some of the basics of circuits.
 http://en.wikipedia.org/wiki/Hydraulic_analogy Being a helicopter mech and have years of exp in troubleshooting hydraulics I found this simple explanation of … Read more
Mecanum wheels are hot, smart for robots, cool.. But impossible to get hold of, unless you want to spend USD 2-300. So why not just make your own?
Update: Here is how to make them really fast & stable.. but project will go no further, omni has arrived I got really pi**ed off by the fact that it was hard … Read more
Did you know you can make your own custom characters for a picaxe LCD display? You can make up to 8 different custom characters using the cgram wizard under the … Read more
Updated with Bonus tip! You can "easily" hook up some cheap UHF / FM whatever units to make 2 MCU's talk wireless by serial. But you need to learn some stuff, this is what I learned :)
Since I discovered this: http://letsmakerobots.com/node/5916  all has changed! I was blind, but now I can see. And I can program! On Picaxe, in order to send … Read more
Now with cool video of a real life military prototype! This is an easy to make 6 wheel drive robot platform designed for rough terrain. The chassis is made from 3 … Read more
The GWS servos are extremely easy to modify to continous rotation, here is how :)
Thanks to  ndupont for this: http://letsmakerobots.com/node/4873 and to Anders for this:http://letsmakerobots.com/node/259 - Now I had some GWS-servos that I … Read more
if you, like me, just want components to work, and do not care about making prints, this is a great way to get many little smart micro-boards ready to plug in!
If you ever shop in something like www.robotshop.ca and you (like me) would really like components to be just hooked up & ready, I can strongly recomend … Read more
A tutorial for calculating series resistance and reading LED data sheets
I've noticed that some people are uncertain how to calculate series resistance for a LED or when using a group of LEDs are uncertain about wiring them in series or … Read more
make a cheap servo rotate forever!
Here is how I've modified cheap e-bay servo for continuous rotation, Thanks to Oddbot for his explanations :)    Servo is a SG90 ,  equivalent to HXT900... and … Read more
French version of the "start here" robot
This article is only a translation on fritsl's excellent tutorial, all credits goes to him. Read more
can follow a black line on a flat lighter surface
Using a
This is a walk through for a simple line follower that can follow a black line on a lighter surface, i used black insulating tape on the floor. The robot can be … Read more
In an earlier tutorial on IR object detection sensors I mentioned that they could be used for object tracking. Now I show you how and my progress so far. I've also … Read more