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 news item or cool link: Web link
     During my week of final exams I had almost nothing to do after my half-days of school, then I had a revelation, why don't I make a robotic arm. The fact of … Read more
Blinks in different programable patterns
My first step to robotics.... an 3x3x3 cube Read more
Hello Here is my art robot named "Evil Dead". This name comes from the movie trilogy which features "Ash", an S-mart clerk thrown through an assortment of crazy … Read more

CHEAP-O WAY TO MONITOR ADC VALUES IN PICAXE

Fellow members,

Does any of you know of, or use a way to monitor the ADC values produced by a Picaxe analog input pin in real time?

As far as I know, the only two ways to monitor these values as they happen are: 1) with an LCD in the circuit or 2) on the programming PC via the download cable.

I was wondering f there was a cheap-o version, something you could breadboard easily and with discrete components... Ideas anyone? Or am I looking for the holy grail?

Thanks, all!

Cheers,

Andrés

Linea is my first line follower based on Arduino.A line follower is a robot for beginners. In fact it is very simple to build a line follower and only few … Read more

Hobbyduino Mini Bootloader ISP Shield

In a previous post I presented a revised version of my Minimalist Arduino Clone called the Hobbyduino Mini V3.0. Here a picture for reference.

Now, I would like to present a bootloader ISP shield that can be used to burn the Arduino bootloader onto blank ATMega328 or ATMega168 chips.  Here are a few pictures of what it looks like.

Revised Hobbyduino Mini (Minimalist Arduino Clone)

A little while ago ignoblegnome (IG) did a review for me on my version of a minimalist Arduino clone designed to be used for prototyping and finished projects. The board design allows the Hobbyduino Mini to be used on a breadboard by soldering pin headers to the I/O sockets or in a finished project by attaching wires. IG also passed along some great suggestions for future versions. I took the suggestions he made and modified the original design. Below is the 3rd revision of the Hobbyduino Mini.

Contests

Hey guys, I found the microcontroller, make ir move and toy challenges on instructables. Great competitions.

Check out my competing projects:

http://www.instructables.com/id/Build-your-own-hovercraft/

http://www.instructables.com/id/Password-access-with-arduino/

http://www.instructables.com/id/Password-Lock-with-Arduino/

 

cr4cX H-Bridge

The cr4's H-Bridge is builded with MOSFET and BJT transistors and specialized low-side driver IC.

In my tests the bridge has worked at 32KHz PWM frequency with virtually no heat generated.

Two of these (one for each motor) are used in cr4.

The bridge prevents the shoot through conditions and allow the following operating modes:

  • pwm cw rotation
  • pwm ccw rotation
  • pwm brake
  • brake
  • coast

Maximum supply voltage is around 18V and maximum current through the motors is limited by the IRF9540 MOSFET caracteristics.

Helps new PIC users learn the basics
The PIC tutor board features everything a beginning PIC learner needs. It features the 18F1320 Microcontroller, 4 ADC lines, 6 LED's, connections for a Motor … Read more
Ultrasound navigation, reacts on nearfield bodyheat, detects light
Using a
This is my first autonomous 4WDBOT on a DfRobot Base.I try to keep all mountings as clear and functional as possible - no decoration parts. Update: After some … Read more
Improves the obstacle recognation of Sharp IR distance sensors
Sharp IR distance sensors are very often used in robotics. But I always found it annoying, that they do not recognize very small objects, chair legs or even walls … Read more
The Robotic Tank you see here was capable of speeds approaching 10MPH With myself on it. Powered by 2 250W electric Scooter motors, it was a very large project. The … Read more

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




Recently collected


Robot rover controlled by a NRF24L01+ transceiver
Using a
I wanted a rover with longer range (WIFI is to short). On this robot the video and control signals is transferred by a NRF24L01+. The video is very low resolution … Read more
Amplifies the wearer's strength, provides haptic feedback and environmental information, aids in disaster relief missions remotely if necessary.
Two teenage inventors embark on an endeavor of immense proportions, and potentially world shaking effects...the construction of MaRRVE. With applications ranging … Read more
Looking to get started? Here's a list of sample projects of how to learn about how to make robots
New to LMR and looking to get the most out of it? Check out the "Get the most out of LMR" page. This Start Here section includes robots and projects which are … Read more
Checks local temperature from the Yahoo Weather API and Temboo converts to INT.
In this video we will use an Arduino Yun (or leonardo with a wifi shield) to connect with the Yahoo Weather API and return the value of the local temperature … Read more
This is OSIRIS a rover style robot that I will hopefully modify with autonomous gps control. Right now it is controlled with a 2.4 gigahertz aircraft radio and a … Read more

Open FURBY

Open FURBY is an open community-based project with the goal of providing low-cost social robot platform based on FURBY® toy from Hasbro®.

Cutting Acrylic sheet

I've been asked how to cut acrylic with a hot wire cutter - I made my own and there are a few plans for how to do this on instructables etc. This was my take on the idea which I find works OK for me... - see the file attached

While the Deathstar, and X-wing squadron might have failed to gain crowdfunding traction, there is a realistically obtainable piece of technology we can create … Read more