Let's Make Robots!

Log in to get help, show off, share and inspire:

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
Spins around, plays stories, entertains visitors
YantraMane was a project undertaken by the Karkhana Team as part of an Art-Tech Exhibition in Nepal - Yantra 3.0.  Nepalese engineers and artists collaborated to … Read more
1. Introduction Lucy is a virtual robot and a further development of Emo. She is able to learn by supervised machine learning and express emotions by an according … Read more
Precision control of 2 DC brushed motors using encoders
Perhaps the most common part needed to build a robot is a motor controller and usually the first complaint from beginers is that the robot does not travel in a … Read more
An old folding robot with rc gear and two servos I made a few years ago. Painfully slow and confusing to operate but would probably have been cool with arduino. … Read more
Enable a robot (for now it's a computer) to operate a computer using keyboard/mouse.
This is a pretty simple project, but thought I'd share in case the code was useful to anyone else. This is the first step of a new robot I want to build. So, … Read more
Changes its emotional states based on its environment
I call the virtual robot Emo. I modeled the face after my daughter Mia. It changes its emotional states based on its environment. There are two slide bars on the … Read more
I am making a Drone from the scratch. The two most fascinating things technology has made so far are 3D prnters and Drones. After watching a lot of FPV videos on … Read more
Open hardware/software wifi module runs uIP TCP/IP stack. It has UART,SPI interfaces,GPIO x5 and PWM for intelligent control,but fingertip-sized only
  Would you like to command over wifi out of the box from you smartphone for $3,8? Then here you have it: Read more
Всем привет! Я новичок, это мой первый робот, он не работает так, как надо. Уважаемые … Read more
This is a copy of the "spidy" robot that was published on LMR last Noverber by myblack60impala. Components:   Sparkfun ProMini   2 DFRobot Spiders   … Read more
Using 32bit ARM processor and DC motor/Quadrature Encoder replacing ATMEGA/RAMPS/Stepper motors typical of 3D reprap
    I started my RepSCRAP (RepRap made from junk) last April, and based it on a pair of Arduino Pro-minis. It was ... well.. marginally functional, then … Read more
PiKit is modular and powerful robotic kit for everyone. Be a part of robotic revolution with PiKit. Raspberry Pi with Linux operating system, computer vision and … Read more
Drives around inside, avoiding obstacles. Uses PICAXE 28, Sharp IR distance sensor
Well, after lurking around the LMR site for quite a few months I have finally gotten around to building my first robot! Read more
App controlled, android
Second robot! Here's my try to make a low cost, portable, educational, robot:) Dagu Mini driver+HC05 + other sensors. Read more

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




Recently collected


Navigate under remote control or automomously.
Prompted by Bajdi's and Mikronaut's hexapod builds, I decided to purchase one of the many inexpensive hexapod kits. Apparently I was one of the fortunate ones and … Read more

Sad story about Chopstick Junior and Campus Party Berlin 2012

Well, let me begin with an introduction of the robot and the event but you need to promise me to read it to the end...or just the end if you don't have time.

Kossel 3D printer inspired pick-n-place robot. no particular purpose yet. As the name implies, every measure is more or less eyeballed. Nothing is precise in this … Read more
Herman is an off-road (Kind of), obstacle avoidance robot using an Arduino Uno. He is based around a plywood chassis and uses balsa and some hard wood in his … Read more
A rover with 4 directional wheels.
Andromina robot v.1.2 is a 4WD robotic platform with four directional wheels. The four wheels can independently turn. The robot can maneuver multiple ways. The … Read more
Sharing my work in progress on an autonomous "search and rescue" robot. The ambition is to create a robot which explores my living room starting at a random … Read more

Kirchoffs Voltage Law and Current Law - is there easier math for this?

I think I understand the simple examples for this law, thought the math (algebra) is a bit daunting as its been many many years since high school, and I wasn't very good at it then. The more complex examples make me dizzy.  I have to believe there is an easier way to understand and use this law in my robots circuits. Or is this something that I will rarely use? Is there an easy "rule of thumb"?

Here is an example from the class, not even terribly complex, but seems that way for me.