Let's Make Robots!

Blogs

GOTO FAIL:The next time you feel bad about coding, refer to this.

I hope I'm not the only one who spotted this on Wired.com, but it's nice to know that even the biggest baddest a$$es in coding make mistakes.  This isn't one that would throw a compilation in xCode though-or even get noticed.

Do you see it?  Here's how Wired explains it:

InMoov tracking and voice control using MyRobotLab

Alessandruino's build in progress..

RoboCop or Millennium Falcon

RGB appears to be working.... however I need a Sponsor for some NeoPixle strips......

Take_in shape


I have allowed for 2 sets of 5mm holes for the S2s power/indication leds which I will be porting off the main board.

Made In Nepal Expo 2014 : A Glimpse

Hey there guys!

Whenver there's a relatively huge event in Nepal, the organizers resort to "Bhrikuti Mandap" as the venue. So was the case this time. The Made in Nepal Expo 2014 was held from 14th - 17th Feb 2014, at Bhrikuti Mandap. 

As the event name suggested, the event hosted hundreds of stalls that ranged from furniture to clothing and from pottery to 21st century art-work, in short, everything that's made in Nepal. Of course, why would I post this if there weren't some robots on display?

Pictures! Your Up Next!

 

 

Propeller Boards to use in Robots

As many of you are aware, I'm a big fan of the Propeller. I frequently get asked various Propeller related questions in the Shout Box which I'm all too happy to answer. However, I thought it might be a good idea if I made a more permanent record of my Propeller board related suggestions.

Autonomous Navigation Robot

The process of monitoring and controlling the movement of a craft or a vehicle from one place to another is termed as Navigation. By employing and implementing a suitable design, we can create a vehicle that can navigate from one point to another without a driver. Autonomous Navigation Vehicle (AGV) is an automated vehicle that does not require operation from an operator.

"Pimp My Ride"

"Blendering" a new Chassis for my S2 scribbler.

HMC6352 Compass Module in Continuous Read Mode

I have a need (desire?) to use compass heading as part of my PID loop to keep my rover heading true.  Using my well established trial and error coding technique, I was unable to get a sufficient sample rate from the HMC6352 Compass module using code I pilfered.. er... borrowed (I plan to give it back!) from the Interwebs.

Pandora, the Makibox (by Kariloy)

Well, as many of you know I've been waiting for my own very 3D printer kit for quite a while (almost 16 months). But finally, this past Wednesday (Feb, 5th 2014) I finally got it. If you want to read more about it's arrival you can check it here.

And if you fancy really poor quality videos and you see the initial unboxing here.

Another Pro Mini breakout board.

When Bajdi wrote his blog, http://letsmakerobots.com/node/40026 , about his undershield for the Arduino Pro Mini clones I was very interested and excited. This was because over the last few months I have purchased a few (20) of these Pro Mini clones myself. I was elated to see that there might be an easy interface board for my future projects.

Hello there.........Hot Glue!

Hey there guys,

Finally, ( let me repeat that again ), FINALLY, I have made my entry to the LMR HOT GLUE CLUB !! (Really? Is there one? :D)

Long story. Many places were searched and explored in Kathmandu. Many shops and mini-markets, hunted down, and from one, out comes an LMRian's favourite weapon!

Below is where I found it. It's a place called Asan, a busy street market area. Pretty much an offline real world e-bay for me ! ( cheap stuff )

 

Gipsy, son of Sticky

As seen in my previous post, first attempt to build a quadrupod ended with a jump from the desk.
Hopefully, I learned a lot and I was ready to launch the next experiment.

My wife just received this very nice material from a friend and there’s enough for me too :)

I think the best english translation is paper foam board, but you will see it later.

Pulse oximeter Mk II

I just started to build a second version of a pulse oximeter. If you don't know what a pulse oximeter is, here is a simple but detailed description what a pulse oximeter is and how it works.

LOGO :- UV Laser Style

Parallax Scribbler (S2) Robot - Ultra Violet Laser & XBee & LOGO (Part 2 of 5)

This is the second in a series of 5 Videos going from basic to advanced hacking of the S2 robot.

This second modification uses an UltraViolet Laser (the one I use can be focused for really thin line details)

Space Balloons, Rovers, & Radio Controlled Airplanes!

Let's start a video blog

I think it's time to summarize my projects and start a video blog.

I already saw wonderful things from other members, this is a very small contribution.

first a quick intro on current projects. Then I hope to have more practical videos

Hope you'll enjoy a little bit

Sticky, born to disappear :)

As my 4WD slowly evolves, I wanted to think on my next platform.

One of the form that fascinate me is hexapod robots. They quite always looks organics in their moves and it seems that they can be easier to build than full crazy out of price humanoids ;)

Arduino pro mini undershield

The cheapest Arduino clone on Ebay is probably the small Arduino pro mini clone. I've bought some pro minis on Ebay for less then 3$ a piece from a Chinese seller. It's a tiny board with an ATmega328 running @ 5V. It does not have an USB/serial chip, so you need your own USB to serial converter.

Propeller S2 Ultra Violet 1 of 5

Parallax Scribbler (S2) Robot - Hacked with Ultra Violet

This is the 1st in a series of 5 Videos going from basic to advanced UltraViolet hacking of the S2 robot. ( This video also gives a short overview of what to expect in following videos )

This first version uses a simple UltraViolet Pen , the type used to detect forged bank notes. ( all my Swiss bank notes check out..... if you know what i mean ;-)

The UV pen simply fits into the pen slot of the S2 and i have used one of the already built-in programs to draw a figure "8"

Exciting new happenings at ServoCity in 2014!

We’re excited for 2014 because we have a lot planned!  Below we listed the Top 14 happenings we’re enthusiastic about in no particular order.

PID Tutorials for Line Following

Hey there guys. This post is outdated. Visit http://letsmakerobots.com/node/39972 for the updated tutorial.

Hello LMRians,

In this writeup, I will try to create a tutorial for tuning your robot using PID to follow a line. This tutorial won't go deep down into the details of PID and its applications but will just attempt to show how a robot can be tuned with the PID parameters to follow a line.

12V-30V Arduino Power Supply

So one project that I've been working on lately is a 24V Brushed Motor Controller Shield for Arduino. One of the features that the shield must implement is a power supply capable of power the Arduino with more than 15V, activates the Arduino when the input voltage is greater than 12V, and power any necessary gate driver circuitry. I finished Rev 1 of the power supply and plan to add one more revision to the power supply circuit before designing the reminding parts of the shield. 

Simple Camera Pan & Tilt

I wanted to create an unlimited 360° +/- pan with 180° tilt sync'd to my camera shutter (Prism)


So I got some scraps from the garage and made this thing - I know the quality is really lousy

I'm somewhat unsure if the fuel tubing couplers will be strong enough (bottom/pan coupler isn't connected yet)

Both mechanisms move "fairly freely" so . . . we shall see

 

It's a start - more later

:)

 

$500 ServoCity Scholarship - 2014 application now open

At ServoCity we care about helping students pursue their dreams - that’s why we’ve decided to offer this scholarship. We believe it’s important to encourage young minds to explore their potential and we hope this scholarship will aid a student in doing so. If you know of a high school senior who would qualify, please pass this information on.

The biggest moments in life..

Hi Guys,

I just figured I’d share this moment with you. The picture was taken just after my wife had been given birth to our second daughter a couple of days ago, December the 22. Guess I’m not much of a planner ;) But hey, at least it was not on Christmas eve!

Thank you for the greetings I have received by mail - as always, it’s amazing to feel your friendship :)