Let's Make Robots!

Recently Collected Posts

Looking for ideas for RAD 2.0

Yesterday I picked up a RAD 2.0 robot toy from craigslist for $5. What a steal! Everything works fine, even the old battery seems OK.

This guy stands about 19 inches high and is pretty darn cool. Here's a few of his stock features:

i had one of these before and never got far with it so here is take 2. a friend gave me this one in exchange for taking a look at his broken wii console. My plans … Read more

A Brain functioning approach

Hi again, along next lines I will try to explain the way in which I'm designing Hurby's brain, from sensory to actuator module. I think it can be interesting and useful for some of you. Nevertheless as I'm already under its design, all of your comments and suggestions are welcome.

Isn't that just a pot? You are forgiven for thinking you are looking at a photo of a potentiometer AKA variable resistor. That's what this looks like. However, if … Read more

New tutorial on how to make an Arduino robot

I posted this on the Facebook page, but thought I'd post it here as well.

I just finished writing an in-depth tutorial on how to make an Arduino-based robot. It's targeted towards beginners and should help someone completely new to robotics to build their first robot, but anyone making a robot with an Arduino will find it useful. Here's picture of the robot I make in the tutorial:

Fuzzy Inference module for behaviour-based control

In previous blog I talked about the subsumption architecture of Hurby toy, now it is time to talk about the fuzzy inference module which controls its happiness state.

Hurby's happiness depends on two main variables.

Behaviour-based design. Subsumption architecture

One ot the most challenging tasks I planned for Hurby project, was to define its behaviour. It should behaves in an intelligent manner, discriminating between different happiness states according with user (my daughters) interaction.

Basically, I wanted that Hurby's happiness will depend on two main causes:

Hi everyone! I'm new here and I come from Belgium (so my english is bad ) I'm working on a school project with 5 people. 2 of them are electrical installation … Read more
Try to mimic the alphabet sign language movement.
Using a
Hye LMR peoples! It has been long time from my last robotic upload on this beloved and motivated web/blog. I have work with lots of project for other people. But … Read more
This Robot is controlled using Arduino...I have used 433Mhz RF modules so that the Arduinos can communicate wirelessly...the robot uses differential drive in order … Read more

On-board charger

Hello,

I am redoing the power system of my robot that I built last year to increase safety (preventing shorts, adding emergency cut-off,etc),  convience (adding master switch and switches for each sub system rather than connecting battery connectors) and bling (blue 7-segment displays that show voltage for each sub-system).  

My son gave me approval to post his robot here. His project is for school where he will have a little show to explain what passion he has. As it was more complex to … Read more
UPDATE 3rd of March 2015 Well, it happened. PopPet went onto Kickstarter, it was funded, now it's a product. What a journey! I thought that I better update the … Read more
Hi everybody, I just finished my project R/C Robot and I want to share my experience with you. I have often doing some research on letsmakerrobots but never … Read more
creep around, avoid obstacles, autonomous and remote controlled
So this is my first robot ever.  Why another chopstick robot? Well, simple answer: When i first started to look into making any kind of robot the price for a kit … Read more
in order to operate a PWM servo we have to give PWM to it. PWM can be achieved by using timers or opamps or MCU, i don't know anything about programming, so i go … Read more
UPDATE 5/27/2014 - Added new photos at the bottom and a video of the head looking up and down. I have a hexbug spider that the wife picked up for me @ the thrift … Read more
Sweeps the floor using ultrasound, IR, and an encoder for obstacle detection/avoidance
Using a
this is a follow-on to an earlier proof-of-concept robot found here: http://letsmakerobots.com/node/36052 The brush part of this sweeper is from a Shark hand held … Read more

Arduissimo: MultiCore Arduino indiegogo project

Well I am core crazy, or is that crazy at the core? Maybe it all the 64 core servers I support.... But whatever, had to share this!

ADC0809 AD 8 Channel Analog to Digital Conversion Module and Propeller QS

OK, so one late night I bought one of these with the thought of using it on a Propeller board as they have no analog inputs and it be really nice to have some for motor driver current sensors and other sensors that are analog. Now after learnig a bit more I see this will eat a lot of pins on the Prop and to be honest, I have no idea how to make it all work. I think I understand the code. 
lots of questions abound...

I was looking at the plans that myblack60impala had posted, http://letsmakerobots.com/content/dr-who-k9-plans, and remembering how cool I thought that Maxhirez's K9 … Read more
Parts List: chassis:       Lazer cut aloy  Servos:         MG995  x18                     MG90S x2 Controller:     Arduino Mega 2560   Mega … Read more
Eventually walk around
Using a
First robot, work in progress. I've written a couple of posts about the design and gait implementation on my blog (http://www.burningservos.com), video and … Read more

Motor Arm Length Calculator

Below is a picture of what I'm trying to build. This is the motor that I'm using, which has plenty of torque.


For christmas 2013 I got a 2 motor + 2 encoder rover 5 and dagu 4ch motor controller. For now I dont have any set purpose for him beyond using it as an experiment … Read more
Snail Light Seeker This creature roams through the environment and seeks for light sources. If an object is too close it reverses motion and turns around, then … Read more
My iteration at building the famous MouseBot, originally (Mousey, the Junkbot?) created by Randy Sargent. I present to you YUMBBBBMH (Yet Un-named Mouse Bot Being … Read more

What's your favorite software for robotics?

Which software do you use for making robots? 

This could be software for anything you use in your robot making, from conception to design, to testing and control. I'd like to steer away from listing microcontroller development environments (Arduino IDE, PICAXE Programming Editor, etc.)

Post your favorites in the comments and I'll compile a list.

Hi its me again this is my third robot.I made about in about one month. Materials that i used: *Arduino clone (Funduino). *Breadboard. *Ultrasonic sensor … Read more