Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
script_edit.png Write in your own blog: Blog entry
comments.png Discussions and questions: Forum topic
brick.png Show what you are making robots of: Component
lightbulb.png Help others with what you have learned: Tip or walk through
link.png Add a good web shop, a guide or a cool link: Web link
AuMac A multitask robot for children and security surveillance   Read more
Produces a variety of colors from an RGB LED using PWM
A simple RGB LED demonstration. First Part : Various Colors on Display (Mixing of RGB colors to produce other colors using PWM) Second Part : Fading Action using … Read more
ok so this is the stalled K9 mark Pom, I have a Cubie Truck3 for the main brain so I can run the ROS on it. and that is where it stalled lol I have 4 vex omni … Read more
Controls robots and other things using 32 bit ARM processor from NXP
I have been using NXP LPC1114 controller chips lately. I used them in the robots I am building with my kids, the Valdez family … Read more
Gives the doctors a hand. Right now, moves around.
UPDATE 7/1/2014 : New Video Added : Testing the Motors through the Python GUI The robot will be receiving commands in a similar way, wirelessly, to travel to … Read more
Controls a Fan Speed based on room temperature
This is a POC I made for a friend. Looked it up on the net and decided to give it a try. The setup is made of a DS18B20 temp sensor to mesure room temperature and … Read more
Object avoidance via 5 ultrasound sensors, basic object tracking via same sensors, bluetooth remote control via android
Hello, this is my first project on letsmakerobots so bear with me :) I wanted to build an object avoidance robot with more than one ultrasonic sensor as i found … Read more
Hello All, I've been doing a lot of reading and internet research for a couple months now and have finally worked up enough confidence to start my first project. … Read more
Hallo LMR community! After following your great projects for over one year, it's time to submit my first robot. As long as I can remember, I was always been … Read more
Navigates around Autonomously with pre-programmed waypoints
Using a
After seering that many people like making their rc quad-copters/ helicopters and planes autonomous by use of gps guided flight controllers, i throught i would try … Read more
 IR sensor module:  (IR LED, photo diode + little amplification)             Read more
Helps you get better performance from your programs
Preliminaries "God made the integers, all the rest is the work of man." Leopold Kronecker Read more
This is my first robot project. I used an Arduino Uno and Rotoshield. Read more

Note: You can follow some projects some of the time, but you cannot follow all the projects all the time.




Recently collected


Which MOSFET to use for battery voltage measurement?

Hello all,

I'm currently building a buoy with a string of sensors that measures temperatures at different dephts. I'll be making a blog or Something Else later.

The thing is, I want to measure the voltage of the battery (Li-Po) to be able to predict when it needs to be charged since the system will operate "out-there-in-the-middle-of-nowhere".

[Update: Chapter PROGRAMMING & VIDEO - Date & time] Introduction x2 is a small humanoid robot platform for my current research. It is also a HackadayPrize … Read more
Control every robot with a customizable app
I just finished a project I have been working on for quite a while now - a fully featured universal Bluetooth remote for Android. Most controllers I have seen on … Read more
Bitbang Control over FTDI
This is a short note on how to setup a C programming environment for the FTDI chip in bit banging mode, since that's what I had difficulty doing. There may be … Read more

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Let's help each other printing more stuff :)

There may be a 3D printer or someone who'd like to pay for a print close to you..

Super Cooler Code

Hi guys as some of you know I've been working on code for a project I have in mind, it not a new idea, lots of folks are doing it http://freeaire.com/ , I just want to put my take on it, and perhaps save some store owners some money and make a little myself.

 I live in Maine USA, winters are pretty cold here, lots of small stores have walk in coolers for keeping beer and soda code, so why not when its suitable use that cold air to cool the walk ins, a typical 8' by 20' walking cooler costs $250 or more a month in electricity to operate.

Some design stuff

App controlled using arduino uno, android
The robot will think using a cheap smartphone(<80€) and use gps, accellerometer and compass data from the phone to command arduino through bluetooth or host … Read more
Walks using 3 servos, makes sounds depending on its environment
Using a
So, now that I've built a couple of bots, I thought I'd try making one of those Bottlebots that they have on TV, you know on that program where they fight? What's … Read more