Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
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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
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Changes resistance when compressed
You may remember an article I wrote with regards to this Conductive Ink Indigogo campaign It has arrived and I am well pleased with the quality and uses it can be … Read more
Sits on your desk and looks cool.
I made this a while ago and I thought I might as well post a page for it. I printed this on a Printrbot Simple 2014. V1 printed successfully for me, but I … Read more
Greets people, recognizes faces, tracks moving objects and follows them (hopefully)
I will be taking a bit of a break from the APM rover to start a new project that's a bit more challenging. I got this idea from a game in the fallout series (New … Read more
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

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Hi!! I made  telepresence robot. Device was mounted on the robot:LIVA(small windows PC),Arduino Development language:Processing Read more
Can solve maze via ultrasound,Can grab object via ultrasound
Using a
Forgive my poor english.. Many thanks to LMR and special thanks to   BIRDMUN , ANTONIO.CACIUC,BASILE and   peter ROBOTFREAK This is my first robot that is capable … Read more
Ok, so I have wanted to build a robot for a while, but school prevented me from starting anything.  At the beginning of this summer I bought a Raspberry Pi to just … Read more
Some years ago I made this software oscilloscope and shared it on this site. Then a couple of years passed without me logging on, and in the meantime the link to … Read more

Pet (work in progress)

I have not built my first robot yet - waiting for the parts. But I have the plans for my second robot ready. He, just a little ambition :D.  My second project will be a prototype for a robot that can be sold as a consumer robot. I will call it Pet - working title.

This is how I imagine it. When you order Pet, it will come in a nicely designed box. In that box you will find a shiny sphere, a little smaller than a soccer ball. One size of the ball will be flat. You will also find a smaller box that contains a base plate with an electrical cable. No on/off switch. No manual.

Simple servo bracket

Birdmun an Hi jinx got me looking into open scad, he is code a bracket for a servo you can adjust just by playing with a few numbers, the software is free and there's some tutoreals on line and youtube, you can export STL's as well. I did not think I would like it but after playing with it, my mind is more open, for simple shapes it is very fast.

http://www.openscad.org/

Servo Bracket p, li { white-space: pre-wrap; }

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Capturing Data from 7-Segment Display

Something I've wanted to do for a while is to be able to digitize the data from cheap sensors with a 7-segment display.

I decided to give it a try with some USB charge meters.

I purchased four of these meters.

I opened up one of the blue ones and probed the pins to see how the 7-segments were wired.