Let's Make Robots!

Recently Collected Posts

Picaxe servopos vs pulsin - why different?

For various reasons, I am trying to emulate the function of a servo control board, insofar as the application will be only for motor speed and direction control via one pin and a pwm input- essentially, I'm trying to make a tiny motor driver compatible with inputs via a picaxe servopos command.

(I think there's lot of other potential applications here, but this is where I'm at for now).

 

 

Communicates with your pc to control your robot
The wiimote is a really cool controller to use with your robots. It has many buttons, accelerometers and even a camera which tells the coordinates of the four … Read more
I was busying myself with this robot for the CNRG 2010 competition in Toronto, so I haven't been able to keep up to date on this website.  However I am back now.  … Read more
This is my first arduino project ever. I at first wanted to create a wireless car with a camera mount so that i can drive around the building. I started at the car … Read more
Converts analogs into digitals so you can read the outside world
  Many fast processors, mcus, mpus, etcetcetc fail in one very basic way ..... "NO ANALOG INPUT" (yes i am shouting at all manufactors that fail this basic … Read more

Max713 NiCad/NiMH smart charger.

I made a battery charger with some free samples of the maxim max713 chip.

Maxim home page.

Chip details.

Datasheet.

Search for samples.

Multi Servo Controller - for arduino

Recently, I am searching for multi servo controller (12+ servos) for arduino and I found those boards online and seems they all have both good and bad side depends on your purpose of uses. I was planning to build a multi leg bots with remote control and I think some of these arduino boards has all-in-one stuff like bluetooth, xbee etc.

Some of the products in following links may found on eBay for cheaper price but you can get basic info from there.


 

Navigate and avoids obstacles
Using a
A robotic platform far various experiments related to this field and to teach my kid some things about robotics. It's 16 years since I have build my first robot and … Read more

Acroban robot

Wow! I just came across this recent work from a research lab in France. As you can see in the video, the robot moves a bit like a child -- it's pretty cute.

Their robot has structural stability due in large part to their use of *drumroll* rubber bands! I like that their components are cheap and off-the-shelf. It would be cool to try and reverse engineer it... or I guess we could just ask them for the schematics... hmm...

Of course, some people still find it creepy. One girl told me it was as scary as puppets.

GRAB-E Build

NOTE: This is a reverse chronological blog. Start at the bottom if you are new to it. The most recent entry is at top, just below this notice.

You can also view the Robot Page for this bot.


Update 2011-07-13 (in the wee hours of the morning)

Drives around & detects magnets
Using a
This is what my 'half a robot' blog turned into. For some construction Photos see here: http://letsmakerobots.com/node/23442     Magnetnator Features: Read more

'Making of' FOBOT Video

I've been quite busy & I know it's coming in a bit late, but for interests sake here is some of the background footage behind my OddBot Video Challange entry.

 

Plays wave files from a AVR based MCU with very little external hardware!
Using a
Last year I wanted to add sound to a bot so I wrote a program that plays wave files.  I later rewrote it so that it would be completely interrupt driven so that I … Read more
Go backward and change direction when hitting an obstacle
Hi all, An other robot built a few months. This one detects collisions, go backward and change direction. Once again, no micro-controller inside... but it's the … Read more
Price: $1.75 USD

 Collected by 2 members
This multi-color LED contains red, green, and blue elements that can be mixed to produce any color. Unlike many other RGB LEDs, this unit has a diffused white lens … Read more
Price: $4.95 USD

 Collected by one member
This retractable USB cable can be extended up to a length of 3 feet, has a male, type-A connector on one end, and a male, mini-B connector on the other. The unused … Read more
Price: $10.95 USD

 Collected by one member
The Solarbotics GM10 81:1 Geared Pager Motor is the smallest gearbox and brushed DC motor combination we carry. The 5-gram unit delivers 3.6 oz-in of torque … Read more
Price: $2.35 USD

 Collected by one member
This 1" plastic wheel is made specifically for the Solarbotics GM10 Geared Pager Motor. Each wheel comes with two small black rubber bands: the tire and a … Read more
Price: $2.35 USD

 Collected by one member
This 1" plastic wheel is made specifically for the Solarbotics GM10 Geared Pager Motor. Each wheel comes with two small black rubber bands: the tire and a … Read more
Price: $4.95 USD

 Collected by one member
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor’s simple analog voltage interface … Read more
Price: $10.95 USD

 Collected by one member
Tamiya’s 4-speed low-speed mini motor gearbox features a more compact 030-form-factor brushed DC motor driving a single gear train that can be assembled to … Read more
MoMo is my current mobile software experiment platform.  Created out of a previous project (Mobile Laser Platform).  The purpose of MoMo is to continue to test … Read more

Weather station project, it's getting windy

Believe it or not but this thing right here is a wind vane for my weather station:

"A wind vane"

Description An H-bridge circuit typically provides motor control in robotic designs. Low voltage, low amperage control signals (TTL) are used to control motors. … Read more
Thought I'd share my most recent project here on this great site Just a simple BEAM walker, but I guess I got a bit carried away when designing it   More photos on … Read more

3D Printing

 

Found this online and thought it may be of interest to people on here.

http://www.fabathome.com/

It's a 3D printer you can build yourself. It's a bit beyond my building capacity, but I'll bet there's people on here that can build one.

just walks around aimlessley...
Using a
this is a plan/design/idea/i don't know what i am doing. this is my very first robot plan. so if you could help me in any way please do. i am planning on using a … Read more
object avoidance, auto or remote, expandability for peripherals
Using a
Now that i can do SketchUp  this allows me to plan my next robot a little better. I am recycling parts from my first robot Kaboodle … Read more
Follows FSHPC (Fritz' Start Here Posted Code), assists in product placement
Using a
UPDATE: This project is closed. I'm using the (working) parts for a new bot. But I had a battery question … Read more
Race fast and Avoiding Obstacle.
Using a
I could not figure out how to do the real wall racer yet so I will try this version. I will attemp the real wall racer when I have more free time. Basically is the … Read more