cwhaticando.com home DIY • Do it Yourself • Weekend Projects • BIG Projects • LITTLE Projects
become a creator share your how-to about cWhatIcanDo  

 

 

close window

How Do I Share My How-To?

It's really pretty easy, pictures and videos of the steps it takes to complete your project are stored on YouTube and picasaWeb. Once your "final" video is stored on YouTube, your project will show in the listings on the site. All this is controlled by our Creator's Tools. Basically, you start a project by writing up the project idea.

Step 1. Sign up for a free Creator's Account to gain access to the Creator's Tools.

Step 2. Login

Step 3. Push the "Create New Project" button on the Creator's Tools. Make a name (you can change it later) for your project. And describe your plans to use as notes to guide the creation of the steps.

Step 4. When you've finished providing all the steps to your project, shooting the videos and saving to google video via the Creator's Tool Panel, you are ready to write the introductory paragraph with an interesting story of how you did it, or how you do it in the case of a professional services presentation.

Step 5. Last but not least create and upload the video (to YouTube) which is the video that will be used to summarize the project. If you were building a robot, this final video would show the robot running around, doing fun things that will inspire others to create their version of your project.

That's it... Watch the views and ratings for your project pile up along with the sales commissions! Or get a customer because you showed how you remodel a house.

close window

FAQ About Becoming A Creator

Q. Why would I go to all that work, building something, then put it on a website like C What I Can Do? What's the point?

A. Actually, there are a couple of forms for a reward:

  1. You get rated as an author. Lots of good ratings looks good on your resume.
  2. You Make Money!

YOU Make Money when someone buys a part from You, and builds it into Their Version of your project. And, if YOU have a basement full of red leds and build a red led project - we'll send you customers who are inspired to build your blinking light device. If you sell PC boards, you may link to your own sales. Or sell your own kit online through your e-Bay store.

The same with books! We encourage project builders to make books. In fact, CwhatIcanDo is a great place to get rated as an author. 'Betcha get a better deal from your publisher...

Of course, it is possible that your project won't make you any money, because someone built something even cooler than yours (maybe even inspired by your project.) Maybe you just want to show your version of another project... It's done in the spirit of the web: Sharing ideas. And it's fun building a project on your own.


+ Creator's Login:
User Name:
Password:
 
+ Sign Up For Free and Become a Creator:
First Name:
Last Name:
User Name:
Email :
Password:
 

picaxe 8m: Wall Follower Mouse gets Majorly Modded      ...     29817 Views
Author's name: WeRbots       

Take a PicAxe brain, add an infrared "whisker" and a motor controller, transplant to an existing wall follower robot and you have:

"CRAZY Mouse Bot on Steroids!"

For the issues and tricks, here`s what I did:

* Mount the Power Transistors right down at the motors, if you bend them like wings, you can connect to their bases and feed power directly from the on/off switch
* With the batteries I`m using AA-1700 mah, you have to turn off brown out protection to allow the processor to go under 3 and 1/2 volts or so, you also need to keep the batteries fresh
* The four battery clip is a little large and collides with the top of the back, shim it in the back so it leans forward, that works.

That`s it!!

Have fun programming your MouseBot!!!
Author's Assigned Keywords:    Robots    BEAM Robots    picAxe    robotics    picAxe 08m

  (ad)
Wanna Super Mouse? Start with a Standard One and Upgrade!     
Take an innocent little twenty dollar wall follower mouse, add another twenty to motorize and electronic-ize it, and you've got a pretty fun object avoiding, wall following mouse.

I played around with the motors, though cheapo's they are pretty efficient and the maximum current drain per motor is less than 500 Ma... A one Amp Motor driver will work nicely. That means I can run the whole enchilada with a pic or even picAxe chip and something to drive the current to the wheels.
How the Original Wall Follower Mouse Bot Works     
Just one mechanical "feeler" drives a switch that turns on both motors until it builds enough pressure to switch the motor off, pulling away from the wall and switching the drive motor on again.

It works. Of course it wiggles a lot.
Undressing The Mouse     
Basically, it's most often sold as a kit of parts. It requires basic soldering skills and ability to put self tapping screws into too soft plastic while not stripping the threads.
Bending The Brains Bracket     
You need a bracket for the picAxe, so I took the bare PC board and experimented with mounting it inside the mouse body. Clearance is tight in there, so I had to make sure there was enough room to allow me to mount the IR Detector, low, and in roughly in the area of the bot's nose, but set well back in the plastic.

A little sticky back tape and I get a chance to see if I have the clearance for the IR "nose" as I call it, the placement of the IR generator diodes which stick out of the eye sockets and provide illumination for the "nose," and make sure their is room for the batteries. Four AA cells.

Looks good now. Ready to move ahead.
MouseBot's Brain Transplant     
Here's the basic circuit of the mouse's nose, er, uh, eyes... Basically the mouse's sensory input from the outside world.
... Requires a Little Mechanical Engineering     
I did this very scientifically, I stuffed the IR emitter diodes into the circuit boards, lined up the PC board...

Then I just guestimated using a magic marker. Drilled, and voila! Eyes looking protrusions. I put a little heat shrink sleeve on the body of each of the IR LEDs so I could keep the IR outside of the clear cover, and keep the IR detector inside the plastic body.

I did experiments... To test how to best get the nose/eyes to work.
Eye Details     
These are the detailed shot of the LED eyes, showing how to make the heat shrink keep light outside the mouse body.
One Last Check of the Sensor     
Now that the parts are soldered on the board we can stick the body into place and make sure everything fits. If it doesn't we will have an issue. Fortunately, it all fits rather nicely.
In Skin Detector Testing     
The moment of truth. Actually demonstrating MouseBot's external sensitivity. His IR "whiskers" so to speak.

Everything still looks good. So let's shoot the juice to it and see how it runs. No longer a blind mouse, we need to put some electrons into those motors. Next
Hooking Up The Mouse Motors     
Only this time we are controlling the motor's on and off time with transistor switches. Now we can drive the mouseBot in the same way as the wall follower, but it is no longer necessary to use the little bit of spring wire and a switch. Now we are using the sensory parts so we replace the mechanical arrangement with an IR beam of invisible (to humans) light.
Some Software to Inspire     
The picAxe Basic program brings some civilizing possiblities. For example, rather than having the mouse constantly turning left, then right, then left as it moves along the way, I gave it sort of a long long short kind of deal...

Say you start a wall-follower in the middle of a room. If it is dumb, it will go around in tight circles, if not so dumb, it would simply widen the circles...

In software I go Two Motors On, Read Beam, If broken, only One motor on. So it goes in straight lines till it comes to an obstacle. As long as the IR detector indicates a wall, it will begin "wall following" but when it's out in the open on it's own, it goes on a journey more or less straight ahead, till it finds a wall.

----------------------------------------


' ------------------------------------------------------------
' BEAM bot Brains
'
' Basic Operation of mouse as "wall hugger" just like original
' Except for:
' IR detector "whiskers" lets the mouse find it's way
' Follows walls without physically touching
' Still has basic motor control with microcontroller picAxe m8
' Copyright 2008 Jim Huffman
' Permission granted to experimenters to use all or part
' Note copyrighted material frequency chart at the end


' Basic Interpreter Directives
#picaxe 08m


' Microprocessor pinouts and layouts 08m
symbol LED = 0 '(leg 7) Serout/LED
symbol rightDrv = 1 '(leg 6) High = motor on
symbol pout = 2 '(leg 5) PWMout2
symbol IRin = 3 '(leg 4) Input only pin3
symbol leftDrv = 4 '(leg 3) High = motor on
' (leg 1 Vdd, leg 8 = Vss, leg 2 = Serial In)
symbol spkr = 0 'extra symbol, speaker drive

' Variables used in program
symbol xCnt = b0
symbol rightDrvFlag = b1
symbol leftDrvFlag = b2
symbol objDetFlag = b3
symbol rightDrvTime = b4
symbol leftDrvTime = b5

init: ' Initialize chip so OK with low Vcc supply
disablebod
setfreq m4
' flash LED
high LED
pause 1000
low LED
pause 1000 'wait for Panic resets, etc...

' initialize variables
leftdrvTime = 120 ' Permits balancing forward motion
rightDrvTime = 100 ' allows motor speed balancing
low rightDrvFlag, leftDrvFlag, objDetFlag, xCnt ' initialize values


' Main driving loop avoids walls
main:

gosub driveforward
pause 10

goto main



' Move forward one time after the other - makes mouse wiggle
driveforward:
gosub objDetect 'makes 1/2 wiggle unless there is an object
' the other 1/2 wiggle even if there is a wall
high leftDrv
pause leftDrvTime
low rightDrv,leftDrv 'stop\
pause 10
return

' Driving commands (turns) stick in the appropriate spots
turnRight:
high rightDrv
pause rightDrvTime
low rightDrv,leftDrv 'stop
return

turnLeft:
high leftDrv
pause leftDrvTime
low rightDrv,leftDrv 'stop
return

' If an object is "sniffed out" then set objDetFlag high
objDetect:
pwmout pout, 22, 50 '25, 52 ' 26 usec period = 38.4 kHz
pause 3 ' Begins continuous output PWM

if pin3 = 0 then ' Object Detected
pause 3
pwmout pout, 0, 0 ' stop the continuous pulse output
else
' 1/2 wiggle (unless there's a wall)
high rightDrv
pause rightDrvTime
low rightDrv,leftDrv 'stop
pause 10
endif
pwmout pout, 0, 50 ' stop the continuous pulse output

return



MakeSound: ' fast-beep make a squeek...
setfreq m8 'kick into high-speed mode
for xCnt = 100 to 130
pulsout spkr, xCnt
next xCnt
low spkr
setfreq m4
return


' Chart of frequencies courtesy of PHAnderson...
'------------------------------------------------
' From IR_1.Bas
'
' copyright, Peter H Anderson, Baltimore, MD, May, '04

'
#rem ' PWMOut pout, Period, DutyCycles
PWMOut pout, 25, 52 ' 38.4 kHz
PWMOut pout, 24, 50 ' 40.0 kHz
PWMOut pout, 23, 48 ' 41.6 kHz
PWMOut pout, 22, 46 ' 43.5 kHz
PWMOut pout, 21, 44 ' 45.5 kHz
PWMOut pout, 20, 42 ' 47.6 kHz
PWMOut pout, 19, 40 ' 50.0 kHz
PWMOut pout, 18, 38 ' 52.6 kHz
PWMOut pout, 17, 36 ' 55.5 kHz
PWMOut pout, 16, 34 ' 58.8 kHz
#endrem

become a creator
close window

It's Easy To:

C - What - I - Can - Do

• Sign up - Get ID and Password

• Plan and Create a Project That Someone Might Enjoy and May Even Want to Build

• Link to your creation on your favorite social networking site or blog.

• Become famous! Because your projects get a lot of Hits!

 

Do It Yourself Parts Used To Create This Project.

- PARTS LIST -

Wall Hugging Mouse
Mfr: Tamiya
Price $20
PN-SKU: 70068
Vendor: Tamiyausa




picAxe 08m
Mfr: MicroChip
Price $3
PN-SKU: COM-08308
Vendor: SparkFun



 

Junk Box Reviewer
Itching To Start Building A DIY Do It Yourself Project? Got Some Parts of Your Own in your JunkBox? Find projects by Surfing' the Parts List!
  
  
  
  
  
 
Andrei And Jim
Web Developers
Visit the project:

CwhatIcanDo Website


 
  
  
 
L 298 Compact Motor Driver Kit
Solarbotics
Visit the project:

Build the L298 H-Bridge Motor Control


 
  
 
Account On CwhatIcanDo
CwhatIcanDo.com
Visit the project:

HELP :: How To Create a Project


 
  
  
 
Microrobot Avoider Jr
Microrobot
Visit the project:

Robot Man: With Robot Demos


 
  
  
  
 
Brilliant Blue/Green LED
Surplus
Visit the project:

Converting a Flashlight to LED


 
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

Easy Cheap Robot Weekend Project


 
  
 
Tracked Vehicle Chassis Kit
Tamiya
Visit the project:

Build Your Own Track Drive Robot


 
  
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

Build Your Own Track Drive Robot


 
  
 
Infrared Proximity Sensor Short Range - Sharp GP2D120XJ00F
Sharp
Visit the project:

Build Your Own Track Drive Robot


 
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

Build a Robot In 5 Minutes


 
  
 
Infrared Proximity Sensor Short Range - Sharp GP2D120XJ00F
Sharp
Visit the project:

Build a Robot In 5 Minutes


 
  
 
Gear Motor 2 - 224:1 Offset Shaft
SolarBotics
Visit the project:

Build a Robot In 5 Minutes


 
  
 
4 X AA Cell battery holder plus on/off switch
Powerize
Visit the project:

Build a Robot In 5 Minutes


 
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

picAxe 8 bit Motor Controller: Look Inside


 
  
 
Infrared Proximity Sensor Short Range - Sharp GP2D120XJ00F
Sharp
Visit the project:

picAxe 8 bit Motor Controller: Look Inside


 
  
 
4 Section In-Ground Batting Net
battingnets.com
Visit the project:

Home Installation of a 4 Section In-Ground Batting Cage


 
  
  
  
  
  
  
  
 
Transformer 1k:8 ohm
xicon
Visit the project:

Pong)))))


 
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

Robots Almost Anyone Can Afford


 
  
  
  
 
Morphibian Land Shark
Kid Galaxy
Visit the project:

Morphibian Land Shark


 
  
  
  
  
  
  
 
Parallax (Futaba) Continuous Rotation Servo
futaba (modified)
Visit the project:

How To Build a Robot in a Box


 
  
 
Parallax (Futaba) Standard Servo
futaba
Visit the project:

How To Build a Robot in a Box


 
  
  
  
 
PICAXE 8 Pin Motor Driver Board
SparkFun
Visit the project:

Weekend Project: Get Started With Robots


 
  
  
 
L298 Compact Motor Driver
Solarbotics
Visit the project:

Build a Respectable Autonomous Robot


 
  
 
Infrared Proximity Sensor Short Range - Sharp GP2D120XJ00F
Sharp
Visit the project:

Weekend Project: Get Started With Robots


 
  
  
 
PICAXE 18 Pin Power Project Board
picAxe
Visit the project:

Build a Robot From A Power Wheelchair


 
  
 
PICAXE 18M2 Microcontroller
picAxe
Visit the project:

Build a Robot From A Power Wheelchair


 
  
  
  
  
  
 
Solderless Breadboard For Uno
Jameco Valupro
Visit the project:

Arduino Development VS PicAxe Development


 
  
 
USB 2/0Video Capture Device
SIIG
Visit the project:

On Line Neighborhood Watch


 
  
  
  
 
Eurocard IC Pattern
Velleman
Visit the project:

On Line Neighborhood Watch


 
  
 
40 kHz Weatherproof Transducer
Audiowell Electronics
Visit the project:

Pong)))))


 
  
 
PICAXE 18M2 Microcontroller
picAxe
Visit the project:

Autonomous Robot PVC "Pickup Truck"


 
  
 
Power Amplifier
ST Micro
Visit the project:

Pong)))))


 
  
  

By Creators
WeRbots: i-Mon App
WeRbots: Pong)))))
By Keywords
Ajax: battle
Android: battle
BEAM Robots: battle
Convert Your Flashlight to LED: Converting a Flashlight to LED
How To Build Cheap Bots: Robots Almost Anyone Can Afford
How To Build Cheap Bots: How To Build a Robot in a Box
How To Website: CwhatIcanDo Website
How To Website: Tour This Website
Infrared Proximity Sensor: Build Your Own Track Drive Robot
Quick Build Robot: Build a Robot In 5 Minutes
robot bending: Morphibian Land Shark
Robot Motor Control: Buggy Bot: Wire Frame Bot Body
Robot Motor Control: Robot Basics
Robots: Robot Basics
Rumble Bot Conversions: Robots Almost Anyone Can Afford
Select or type in a Keyword: Converting a Flashlight to LED
web 2.0 site: CwhatIcanDo Website
Weekend Project Robots: Easy Cheap Robot Weekend Project

Click To Expand / Contract Menus. View by Creator, Category, Keywords or Number of Views.

©Copyright 2008 - , CwhatIcanDo.com, all rights reserved.