Let's Make Robots!

Recently Collected Posts

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
Line Mazes and collision object avoidance
Using a
News (for those who don't want to read the article) -I have got one of the line sensors working. -I have got some basic line following going -I have given up on … Read more
Obstacle avoidance, solar charging
Using a
This is my first robot which is still a work in progress. My goal is to create a pet robot that charges itself and navigates autonomously. At the time of this … Read more
AXE121 is an cheap and easy to use Line Follower Kit that can be easily connected to the Picaxe 28 pin Project board. You can buy it on the PICAXE on-line … Read more
So this is what me and my friends are up to. We liked to make our airsoft games really intense. This is one of the 3 project we are making in order to enhance are … Read more
Navigate Around Via Sharp
Using a
This is my first bot. It is built from the LMR Starter Bundle. I hope to use this as a platform for a more complex bot that will be both autonomous and RF … Read more
This is my first blog entry. My first experience with robotics was helping build a Heathkit Hero 1 back in 1982. Now, I am ready for my second experience! Read more

Absolutely not robot related rofl

Sorry, just had to share this :D

The rules here are simple: Make a robot that one way or the other writes either "letsmakerobots.com", or "LMR" the way you like it.Shoot it on video, enter it as a … Read more
I am going to tell you how to use the same cable you use to program your Arduino with to program a Picaxe. I am sure this could also be used the other way around … Read more
Walks around and turns when it finds an object too much close to it.
Using a
Hi there!! I am proud to show you my first creation! This is a 2DOF hexapod entirely built by myself with a bit of external help for the pratical part. It walks … Read more
Allows you to control your robot by tilting your RC transmitter
So here is a nice way to control your next robot by simply tilting your transmitter, that's right no more wiggling the sticks ! Who's idea was to make the sticks so … Read more
Please note: The info on this page is about a board. However, things can be different depending on which chips you stick into the sockets of that board, and how … Read more
Navigate around via ultrasound, uses 4 legs to walk
Using a
My first robot was an autonomous rover based on the "Start Here" robot. So this time I wanted to go one step further and make something different, write my own code … Read more
All of a sudden I got this strange urge to build a bot that beeps. Don't ask me why. Well what can you do about it? Build one! So here's what I managed to put … Read more

Wall Following RC car using 16F887

Here are two videos of my hobby level radio control car following the wall around a room.  This car uses channel 3 of the radio control system to toggle between RC control and autonomous control.

http://video.yahoo.com/watch/7184507/18716445

http://video.yahoo.com/watch/7169550/18673820

follows a black line on a white surface
Using a
Hi guys....     Finally today arrived the last order for this robot... the wheels and the caster....   I took me 2 night of CAD-ing...   Read more
UPDATE - 8. sept. 2010 - first h-bridge and controller board done.--- This is part of my biggest robot project ... It has enough degrees of freedom (5+gripper), … Read more

TI LaunchPad

I picked up in this thread that TI has entered the hobbyist microprocesser market populated by Arduino, Picaxe, Basic Stamp, etc.

At $4.30 US including shipping, they have definitely priced this development kit to sell. It looks like an interesting system, and I couldn't beat the price, so I ordered one. I understand demand is quite high, so I don't know when it will arrive.

I figured that this new entry to the market deserved its own forum topic.

I think, it is one of the cheapest 3-axis robotic arms. It can move, kick and mainly draw in many ways. It is controlled throught PC, which sends command via serial … Read more
It was a slow weekend and I had an arduino sitting around so i decided to make a quick robot. It also gave me an excuse to learn wiring which i've been meaning to … Read more

Picaxe and Arduino- all on one board

Well here is the idea. A board with a Picaxe and a Arduino on it (Picaxe 28x2 and Arduino 328). It will have I/Os from both of them and one programming port. There will be space for both chips. You can use one, or the other, or both. Maybe use one as a slave. I would think this would be good for people who want to start off and cant decide between either. A side by side comparison if you will. All programmed with one port and one FTDI cable. I have started work on a schematic. Any comments / ideas? I have researched programming a Picaxe with a Arduino FTDI cable.

This robot is my first robot. :)    cny70 sensors.    Cny70 driver.   Microcontroller circuits.   optocoupler circuit.   L6203 motor driver. Read more
Drive with an autonomous systems using ultrasonic sensors and GPS
Using a
This project tries to manage any RC Car which you can purchase in your city using a NXT brick and a Lattebox NXTe. Read more
Avids obstacles by scanning with Sharp IR sesor
Using a
Here is  the LMR Start here Robot Mark III, aka BOSS EZ-bot. "BOSS" as in Gadget Gangster BOSS Board. Many thanks to Frits for his original design. Modifed Frits' … Read more

How to select a Motor?

Hey guys!

I'm Thinking to build an all terrain bot in the next few weeks. I've all ready built a few bots which were not that great. Every time something gets messed up, like the drive system or the wheels. So, I Dont want to make the same mistakes again and decided to get help from u people. How to select a motor generally? I mean is there any calculation to know the motor you select will be powerful enough to achieve certain conditions? By conditions i refer to the velocity of the bot, max inclination it can traverse etc.