Let's Make Robots!

Recently Collected Posts

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
Autonomous navigation, web-based remote control
dilBot A loving little rover dilBot is a JavaScript powered Wild Thumper-based rover that makes heavy use of zip ties. More photos What does it do? Right … Read more
walks around on brushbot feet, and hopefully avoids obstacles...
While I'm waiting on parts (extruder, beated bed,  and hotend) for my  Read more
This guy is curious and will explore its surroundings. Equipped with GPS, compass, cameras, ultrasonic sensors, infrared distance sensors, sound, light, pressure, temperature, humidity.... it wants to explore.
This is my robot "Earth Explorer One". My inspiration are the Mars explorer robots and after many years of wanting to build one, I've finally started. Now I would … Read more
Like an alpha version of Samantha from the movie "Her" who will obey your every command or just annoy you.
Well it has been quite a while since I've put something here mostly because of college stuff, so let me just get to it. The embedded video is me talking to my … Read more
Navigates Around, behaves as my best buddy!
This is a robot I have built recently. Here are some pics. This is finished DS   Read more
This is a PID line follower robot.I used NI-MH 7.2 V 1000 mAH for power source . And I used Analog IR sensors. By taking analog sensors values into the PID … Read more
Solves a non-looped line maze
Using a
UPDATE : 5/24/2014: New video added ( with path shortening ) This was my 2nd robot. Back then, I had built it to solve a line maze but there wasn't a path … Read more

translate or change the code

I need an expert in C/C++ programming to help me translate a fairly complex piece of C code  following line robot into matlab code. the C code is from webots software. The original author of the code can't do it, but we have his permission to do it.

 

Please reply here or PM me if you're interested. Thanks. 

Realistic conforming grips things using opposable thumb
I set myself a task to create a single 3D printed hand with an "Opposable" thumb. The design I present here comes from some of my previous jointed finger … Read more

Wild Thumper 6WD with thumper controller - serial command mode and wheel encoders

Hi,

First off great site helped inspire the purchase of a Wild Thumper 6WD and wild thumper controller.

 

Just completed the "first fix", where I have wired up LiPo, high power switch and thumper controller board, and uploaded the "default" Arduino sketch (from Robosavvy site, using IDE version 0018), but not yet connected any sensors etc.  I previously ran the "diagnostic" sketch Oddbot put together and all good.  Sketch from here:

 

This is a robot I built out of stuff I had laying around. All the software to control the robot is on the netbook. To use the robot you login with a remote desktop … Read more

Netiquette, Asking For Code

I've seen a few posts suggesting asking for code is bad form.

I'm inclined to agree but I'm not completely sure. I think many of us don't always post code because it's not nice and tidy. I know I haven't posted code for this reason. There are plenty of times it wouldn't bother me if I were to be asked for code I hadn't posted.

In general, if someone asks me for code, I post it.

Navigate via Ultrasound and agitate Basset Hounds
"Tribble" isn't one of the permanent collection-I rarely build a robot this disassembleable.  The intention of building this guy was to learn about the … Read more

Using the Arduino PID Library for precise position control of X and Y axis on RepScrap printer

I've updated the test code I'm using to manage my X and Y axis DC motor / linear encoder closed loop controller.

Plans to follow a line, dreams of solving mazes
UPDATE 8/24/2014 : Testing out a new design in the form of MB-3434 Thanks to Lumi, I have a set of 3D printed parts of MB-3434 to layout a similar base for Nano … Read more