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
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lightbulb.png Help others with what you have learned: Tip or walk through
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Hi guys! this is my first robot project and it's a simple "light-seeker". i used an arduino uno board and a motor shield from adafruit. the base is done with pieces … Read more
     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

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




Recently collected


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

Droid functions similar to a Spring Flamingo design for the legs, upper body balances like a "hoverboard" at the hips. Remote control is done with a vr headset, and … Read more
Hello. This is my Johnny Five robot from the movie Short Circuit 1&2 it came as a very plain and simple kit. I have done many modifications to it and I'm happy … Read more
Talk with Arduino via Speech / Voice Recognition Module
How to: Arduino Voice / Speech Recognition  with Geeetech Module [Tutorial].  This video will show you how to talk with your Arduino with the (cheap) Geeetech … Read more

Botboarduino drivers

Ok guys it's been a while since I've been on I'm glad everything is picking back up.

I recently had to wipe my computer after getting a virus. Which means I lost all my drivers and code and etc. I managed to get arduino up and running but my botboarduino needs drivers to work. I'm kinda freaked out about catching another virus and I can't seem to find the correct drivers for ft232 uart. I tried one place but it keeps asking me for a password to open it. And when I point the device manager it refuses to see the zip file.

My artificial neuron approach

February 12, 2015

A single artificial neuron can represent some simple Boolean functions like OR, AND or NAND and some like XOR not, because a single artificial neuron can only learn linearly separable mappings.

Example. Perceptron for the AND function:

walks on two legs using four servos
this is the next evolutionary step from my trashbot version 1. i decided that i want to build more robots made from recycled mechanical parts instead of shaping … Read more