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
Howto interface QRD1114 line sensor
Hi, everyone! Few days ago one of our new members asked for help with QRD1114. I decided to answer in form of walkthrough, so others can benefit from it as … Read more
Play Fetch, Firefighting, navigate by map using different sensors for localisation.
Using a
This is my latest robot, still work in progress. It will take a while until it gets finished, as I want to make it more and more complex. I intend to add every … Read more
Grabbing objects, swinging them around
Using a
This is a delta parallel robot - aimed to be the smallest in the world. I aimed at a height of about 1cm, but during building I found that, with my … Read more
Navigates around via ultrasound, makes :D :) :( :| or :P, tries to catch everything nearby with its gripper
Using a
You can buy German Cheese in Shanghai, sealed in a nice aluminum can. Since a while I toyed already with the idea of doing sth. with these cans. Too good to throw … Read more
Walks forward and backward, turns in place, avoids obstacles.
Using a
This is a simple three-servo hexapod robot using the Pololu Micro Maestro as a controller.  The Micro Maestro allows allows me to sequence gaits and integrate … Read more
Keeps the baby sidetracked
What better way to celebrate the birth of a new family member. I jumped at the chance to make a solarised baby mobile to pacify our new arrival. So here is … Read more
Grab object while tracking them using live video.
Using a
UPDATED!!!!! RoboBOB is designed to track objects using it's vision and when signeled, grab it with it's closest hand.  The initial vision portion has been … Read more
The PICaxe USB cable is just a USB-Serial Converter.  Like a lot of USB-Serial converters, it's based on the FTDI 232 chip.  This means you can use most FTDI … Read more
Make your robot to 2 (or 3, or 4, or 5, or 6, or 7) things at the same time
This is part 0 of a multi-part series.  The other parts are here. Read more
A basic - intermediate walkthrough on programming in Spin
This is part 1 of a multi-part series.  The other parts are here. The Parallax Propeller can be programmed C, Spin, or Assembly; I think most people use Spin.  I … Read more
This is part 2 of a multi-part series.  The other parts are here. Spin is an 'object-oriented lite' programming language.  I like it because it eschews some of … Read more
How to use the Prop to do multiple things at the same time
This is part 3 of a multi-part series.  The other parts are here. Let's imagine a hypothetical 'obstacle avoidance' robot with a set of wheels and a ping … Read more
Peanut Tin of Terror is an autonomous beetleweight (3 lb) combat robot.  He competed in this year's Robogames 2010.  You can read about his development at … Read more
Sometimes you want to make not just one tip, but a complete series. Or colaborate across the site. This is how to do it best.
Sometimes you want to make not just one Tip/Walkthrough, but a series of postings that belong to each other. Or you want to cooperate with others on a subject / … Read more

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




Recently collected


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
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
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.

Robots can be made out of anything... can't they? Mopsey is a friendly bot' made from craft fur and a few electronics - designed for simple interaction. Very … Read more
Expresses emotions, solves problems, artificial consciousness
Virtual robot girl will have human like skills. Human like skills means simply, she will be able to learn like a human, she will be able to express emotions like a … Read more