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Monday, April 8, 2013

Robots and Remote Control Lawn Mower Projects

Robot Lawn Mowers

Remote Control Lawnmower - Custom

Video Link...

bylearn more stuff: Robot Mower Robot

Daniel Epperson's MowBot project

Thanks for checking out my project. Lots of people have similar projects around the web (check youtube, blogger, or hackaday for examples) and this is my version. I was recently inspired by Robert Smith to try and write up some better documentation about my project and its current status.

See below for my original (2011) build details.

Robots! Scroll down if you want to jump over the build process and get straight to the videos.

Actually, this isn't a robot so much as a remote controlled lawn mower, but I hope to figure out autonomous controls in the coming months. This project got started in the early months of 2011 while I was on a two week vacation from work. I had no metal fabrication or welding experience going into this project, and so far it has proven to be a great learning experience.


I started the project by  dismembering a push lawn mower and electric wheelchair and ended up with the pile of parts alongside my lovely dog Sadie. It is hard to do anything outside without the dog involved, and she is good company.

So, this is how it started. No plans. No whiteboard. No idea what to do. I just knew that the first goal was to sit in the shade and drive the lawnmower around the yard.

To kick off the build, I started laying the various parts out to figure out how they might fit together. Pictured here are two wheelchair motors with wheels attached, two caster wheels from a furniture dolly, a lawnmower frame, honda civic trunk hinges, and some various tools. The big hammer is key.


Arduino R/C Lawnmower (painted) by johndavid400
What this is:

This instructable will show you how to make your Arduino into an R/C interface that you can use for just about anything requiring remote control. I will also show you how I built an R/C lawnmower using my Arduino, a cheap R/C transmitter and receiver pair, and a couple of electric-wheelchair motors from Ebay.  I have used this interface to control anything from basic LED's to Bipolar stepper motors, mini-robots, lifeless R/C cars from the thrift store, and even a 100lb lawnmower (all with appropriate motor controllers). It is very flexible and easy to change and very simple to set up.

See a slightly different version of the Lawnbot400 in my new book "Arduino Robotics" , as well as a DIY Segway and several other bots.

Check it out in MAKE magazine in the April 2010 issue (#22) or here:

UPDATE 3-24-10

New wheel-barrow bucket mounted on top with hinges so it can dump its contents.


And new video of the Lawnbot400 moving a bunch of dirt from my truck to the flower beds across the yard, also I updated the code again.


I added some new code to the project that is safer, including a manual kill-switch and a Failsafe switch.

To implement the Failsafe, I used another Atmega168 (or an Arduino), to control a normally-open 60amp power relay. The relay disconnects the power to the motor-controller unless receiving a "good" signal from the 2nd microcontroller. This signal is updated 2 times every second and is either ON or OFF. If the bot gets out of range, it loses power to the motors. If I flip the kill-switch on the Transmitter, it loses power to the motors. This is also a handy way to disable it remotely if anything were to go near it that wasn't supposed to. The updated code for both microcontrollers is on the CODE page.
In addition to the failsafe, I changed the way the code reads the PPM signals to make it more reliable. Also, I realized that I was only able to run the bot at 80% speed with the old code, so now it is quite a bit faster and has more power (it can carry me across the yard @ 155lb).

Check out this new video of me riding the Lawnbot400, my wife driving it over a bunch of branches, then me making do some wheelies. Don't worry, the mower was turned off this time since the grass didn't need cutting, we were just having fun.

DANGER!!! This is a VERY dangerous piece of equipment if not handled appropriately. Since all the electronics have been home-built and the Arduino code is new, you MUST be very careful while operating anything heavy with this code. I have had 1 or 2 times during testing - and before adding a secondary failsafe - that the main Arduino jammed up and I temporarily lost control of the mower for a few seconds!!!! Though I have added several filters to discard unwanted signals and I rarely have any issues, an un-manned lawnmower IS STILL A POTENTIAL DEATH TRAP and I assume no responsibility for anything that happens as a result of your use of this code or this tutorial. This is meant as a guide for people who not only have the ability to build such a contraption, but the responsibiltity to operate it safely as well. Any suggestions or ideas on how to make this a safer project is always gladly accepted. Having said that, it's also awesome.



Robot Mowers and Remote Control Lawn Mower Projects
Solar powered robot mows your lawn while you chill indoors
learn more stuff: Solar mower charger
learn more stuff: Robot Mower
Remote Control Lawnmower - Custom*** - YouTube
RALF's first mow. - YouTube
Robot lawn mower - YouTube
RALF, Daniel's robot lawnmower - YouTube
Lawnmower+stake+rope=Analog robotic lawn service
Self-propelled mower on autopilot - YouTube
R/C Lawnmower
Arduino R/C Lawnmower (painted)
Remote control Lawn Mower
DIY RC Lawnmower
DIY RC Lawnmower
Homemade Radio Controlled Lawnmower - YouTube
DIY RC Lawnmower
DIY RC Lawnmower
DIY RC Lawnmower
lawnbot400_dumptruck.avi - YouTube
joyride1.flv - YouTube
Lawnbot400 (2) - YouTube
Dave's LawnBot Part 1 - YouTube
Weird guy, seeks enlightenment - YouTube
Lawnbot400 (3) - YouTube

Robot Elders some cool and very old ones
George the six-foot robot comes back to life after 45 years stored in his inventor's garage | Mail Online
Oldest Robot in History Resurrected - TOKYOMANGO
My robot rickshaw son: Chinese farmer Mr Wu Yulu shows off his latest unusual inventions | Mail Online
Robot Fridge
Robot fridge - YouTube
FridgeBots: Turning appliances into ROBOTS - YouTube
PR2 robot opens fridge and learns its kinematic model - YouTube
Robot Butler: 'Walking Fridge' brings you drinks on command - YouTube
PR2 Robot Fetches Beer from the Refrigerator - YouTube
Beer Fridge Robot - YouTube
Mini Fridge - Assembly Instructions , TeamTiki - combat robot - YouTube
PR2 Fetches Sandwich from Subway - YouTube
Google Custom Search for Robot

Robot That Can See Through Walls
A Robot… That Can See Through Walls! - Hack a Day
See-through-wall robot with radar | Intelligent Agent
Intelligent Agent - Radar sensors for robots and automation
See-through-wall robot using UWB radar - YouTube
Robot Videos Real working Proto Types - by Boston Dynamics and Others
Sand Flea literally leaps tall buildings in a single bound - Hack a Day
Sand Flea Jumping Robot - YouTube
BostonDynamics - YouTube
BigDog Evolution - YouTube
AlphaDog Proto - YouTube
LittleDog - YouTube
RHex Rough-Terrain Robot - YouTube
PETMAN - YouTube
Cheetah Robot Gallops at 18 mph - YouTube
BigDog Overview (Updated March 2010) - YouTube
HRP-4C Miim's Human-like Walking - YouTube
BigDog Weaponized - YouTube
Burning Man 2008 - Giant Walking Spider Machine - YouTube
Cheetah Robot Gallops at 18 mph - YouTube
Sand Flea Jumping Robot - YouTube
BigDog Evolution - YouTube
PETMAN Prototype - YouTube
RHex - YouTube
Short Sharp Science: Packs of robots will hunt down uncooperative humans
[HD] HRP-4 Humanoid Robot Walking Like A Real Human!!! - YouTube
A very human-like robot invented by Japanese engineers - YouTube
Japanese robot with touch motion. - YouTube
amazing 8 foot robot seriously advanced - YouTube (Promo or Something?)
HRP-4C Hatsune Miku Cosplay @ CEATEC Japan 2009 - YouTube
World's Most Advanced Robot (Dunia ya juu zaidi Robot) - YouTube (Really a Remot Control Robot)
New Honda Robot ASIMO 2012 - All features and behaviors - YouTube
Japanese Robot Catwalk Model - News 2009 - YouTube
My God!!! REAL Robot Child For Your Family - YouTube
Amazing!!! I am dancing with Honda Robot Asimo!!! - YouTube
Artificial Intelligence Human Like Robot 2012 Future is Here - YouTube
New Head2 - YouTube
Robot head version 2 - YouTube
rickymaworkshop - YouTube
MsSallyW - YouTube
DonsDeals: Robot Videos - Real working Proto Types - Big Dog, Sand Flea, RHex and More!
HowStuffWorks Videos "Artificial Intelligence Lab at MIT"
Open Directory - Computers: Artificial Intelligence: Vision
Prontobot powerchair robot - Desktop Capture - 03-01-2013 - YouTube

Robotic light painting in 3D
robotic light painting in 3d - Google Search
Hack a Day • View topic - Lightplot - A 3D light painting robot
PCH Search & Win: Robotic light painting in 3D
Everything Visual » Light Painting
Home | Paramount Metal Finishing
Paramount Metal Finishing - YouTube
Emerald Engineered Decorative Solutions
GoEngineer 3D Printers for Engineering and Design
Excitron-- Stepper Motors, Controllers, gears, robots

Lightplot – a robotic 3D light painting system « adafruit industries blog
Robotic light painting in 3D - Hack a Day
Robotic Light Painting! The making of: TANIQ Christmas Card 2012 - YouTube

Robots The Three Laws of Robotics by Science Fiction author Isaac Asimov, ROS (Robot Operating System), Open Source Hardware (OSHW) and More
Toorcamp: MC Hawking Robotic Wheelchair - Hack a Day
Noise-Bot - Noisebridge
Documentation - ROS Wiki
Three Laws of Robotics - Wikipedia, the free encyclopedia
I, Robot - Wikipedia, the free encyclopedia
Superman (1940s cartoons) - Wikipedia, the free encyclopedia
Science fiction - Wikipedia, the free encyclopedia
Isaac Asimov - Wikipedia, the free encyclopedia
Runaround - Wikipedia, the free encyclopedia
Robot series (Asimov) - Wikipedia, the free encyclopedia
Lucky Starr series - Wikipedia, the free encyclopedia
Young-adult fiction - Wikipedia, the free encyclopedia
Positronic brain - Wikipedia, the free encyclopedia
mchawking partying at toorcamp 2012 - YouTube
File:I Robot - Runaround.jpg - Wikipedia, the free encyclopedia
File:Superman-mechanical-monster.jpg - Wikipedia, the free encyclopedia
Foundation series - Wikipedia, the free encyclopedia
Galactic Empire (series) - Wikipedia, the free encyclopedia
OSHW - Definition of Free Cultural Works
ROS/Installation - ROS Wiki
fuerte/Installation/Fedora - ROS Wiki
Robai Robots - Many Degrees of Freedom
SF in pseudoscience

Robots and Science Fiction info from PCH Search for (Title of my Blog Post) - The History of Sci-Fi and Real Robots, goes back much further than I realized!:)
PCH Search & Win: The History of Sci-Fi and Real Robots...
Robai Robots - Many Degrees of Freedom - What's Your Question?
The Rise of Nuclear Fear–How We Learned to Fear the Radiation | Guest Blog, Scientific American Blog Network
Android (robot) - Wikipedia, the free encyclopedia
History of science fiction - Wikipedia, the free encyclopedia
Prometheus (film) - Wikipedia, the free encyclopedia
Science fiction - Wikipedia, the free encyclopedia
Predestination paradox - Wikipedia, the free encyclopedia
1987 Time Capsule Predictions | L. Ron Hubbard presents Writers of the Future Contest
SF in pseudoscience

Robot stroller lets baby steer without mowing down other toddlers - Mechanized Stroller
Robot stroller lets baby steer without mowing down other toddlers - Hack a Day
Mechanized Stroller with Autonomous Robot Assisted Steering - YouTube
Mechanized Stroller | Daddio Robotics

Robots and Emotion: Tetchy the Turtle Meets HAL-9000: Science Fiction in the News

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