Mozilla Maker Party Pune- Oh Yeah!

CAUTION:This post might sound different. Writing gears need some oiling.

I have moved to pune for work now and exploring the city has always been on my top agenda.  Pune has always been a happening city of makers. Mumbai is close-by and easily commutable. There are a lot of DIY/Maker start-ups here too and who doesnt know about IOTPune/DooThings. [A more detailed city review sometime later]

Bored one night,thinking how to spend the weekend more constructively, i started to scroll through the meetups around my place on weekend. The main priority was “Distance” . People living in Pune can relate. The city transportation is awful and a thread is always running in mind querying, “Dude! Will be able to walk back? ”

Thankfully, I noticed Mozilla is organizing a big event near my place and there is no better way to spend the weekend. After visiting, MakerFest last year, I have really started to like these events.Anool(Sir) from MakersAsylum/Wyolum was coming with his team and so was IOTPune and so was Mark Surman from Mozilla and so were many others.

I stared to plan how to go at Symbiosis Centre for Computer Research, Here Transit comes to the rescue and i boarded the bus and got down at a nearby bus stop. Initial (rather first day) experience has taught me that we should have “Say No to Autos” banner erected everywhere in the city. This is more important than Polybag Awareness etc. if thought in a more citizen centric way. [Weekly, Auto Rant Ends.Stay tuned for more]. I walked another 800m and there i was at the venue.

I entered the gate of the college. I was asked my credentials to check, if i registered. I had , so i went to see the workshops as they were listed on the website. I carried my OpenBadge [A no brains LED Matrix badge that i made for MakerFest but could’nt debug it completely] and some other projects too just in case someone like-minded crossed. Swag!

I went straight to the main hall and found it jam packed. So, i gave it a pass and went on visiting the booths. There were pretty interesting things showcased. Let start the Booth WATCH:

Makers Asylum was present with all guns blazing.

The Word Clock was at display.
Word Clock

Samarth from Melting Mints who works with the Makers Asylum showed some mind blowing applications of 3D Printing. This is a human skull printed from a scan.
3D Printed real scan

A 3D Printed Jet Engine for educative purposes.
3D Printed Jet Engine

A 3D printed Music Instrument and a Car that is so awesomely finished.
Does 3D Printing sound good?

When asked if he can print custom parts and more specifically 3D Printer parts. He said, Why not? Plus he does it economically too for students willing to start printing.

The Pipe Lamp
The #PipeLamp by @makersasylum at @Mozilla #MakerParty #Pune #India #MakerWeekend #Makers #DIY

They also had a few 3D pens for visitors to play with.
3Doodling at @mozilla #MakerParty #Pune at #MakersAsylum Stall ! #Event #Makers #Meetup

I managed to build this cube. Tch!
3Doodled Cube

In the next booth, An interesting thing was up for display. A Smartphone and a DSLR ? Connect the dots and you get the triggertrap.
It translates the audio out from a SmartPhone into DSLR jack signals to do interesting stuff. Intervalometers, Event activated clicks.. You say it and app does it all.

Trigger Trap

Trigger Trap Device

I even saw a PrintrBot METAL at Maker Party by Reed Robotics. It was smoooooth.
#ReedRobotics showcasing their #PrintrBotMetal at @mozilla #MakerParty in #Pune ! #3Dprinting #Maker #DIY #Wow

Ant Farm Robotics showcased their tiny WSN nodes that last for months on 2 AAs. The tiny ATTinY Runs a full blown RTOS and uses a TI Radio (RF2500/CC1100) to do the wireless part.
A #Tiny #Node of a #WSN that can have tons of uses showcased by #Antfarm #Robotics at @mozilla #MakerParty in #Pune #India The node uses at #AVR #Atiny micro with a #TI radio. Surprisingly the ATtiny runs a #RTOS that does all the #processing. #ConnectedI

Navstick were showcasing their next generation Autonomous navigation systems that can be used in Quads, RC Planes and IGVs etc.

A Quad with Navstick installed.

A RTF Bixler that too supports NavStick

They use a GoPro for Aerial Photography. Kewl!
Go Pro

A part of Navstick Hardware Family. Built in India

On the way to the second floor, I met Nishant Modak of IOT Pune.He too is(was) suffering from HP Laptop Syndrome and we talked a bit about his Makerspace in Pune called DoThings. He is doing a Pan America trip visiting MakerFaires with his team.
With Nishant Modak of IOT Pune

They have developed an awesome BLE Arduino Board that does great things. Its called Tah! They also have a campaign running on crowd supply. Get yours now!

Its #Arduino. Its #BLE and the best part its #Proudly #MadeInIndia ! Get the latest #Tah from @anujdeshpande , @nishantmodak and Team  Support their #Crowdsourcing #Campaign #Wow

He accompanied me to their booth where Anuj was giving a talk about Tah!
@anujdeshpande giving a #Talk on #InternetOfThings at @mozilla #MakerParty in #Pune #India

They do great things at their MakerSpace which is verrrrry far from my place(Remember the thread). I saw an Intel Galileo which they had brought.
Yes! Its Intel Galileo-Top

Yes! Its Intel Galileo-Bottom

It was time to go. As i traveled back, I thought of various things like Autowalas, 3D Printing , Makerfaires and of course Food.


Arduino ControlWare v.1.0 Beta

I had a bit of an experience developing GUI`s and Data Visualization in Processing.Processing is very cool to work with and the designs are highly scale-able. There are tons and tons of separate examples and libraries available for processing especially the Serial Library which eases the task.

During this week , i tried to make myself a GUI using Visual C#. It was a really great experience.Although you can make buttons in processing too..but its a lot easier in Visual C# Express.However, it seems not many DIY`ers use C# and its used mainly by hardcore coders and developers..but still i managed to find some cool references via MSDN and a demo(of his work) by my friend to put together a simple and easy way to talk to Arduino on a windows machine!

You can monitor Analog Inputs , control digital pins and connect to the COM Port of your choice.Since i am still building upon it.So i am leaving a gist of how the GUI/program currently looks.

You will see that the Digital Pin 13 is missing. Actually i have used it to indicate an Active Serial Session.This makes it a lot easier while debugging.

ControlCom from Indian Tinker on Vimeo.

Edit: 02 Oct`12 : Thank You Guys for appreciating my work!I gave the same to few of my folks at my college for beta testing. Here is the link to the final executable on Windows Only!


The Arduino Code To be uploaded is :                                                      Source

Some of FAQ`s are:

  1. There is no Digital13 on this as it is meant to signify an active Serial Connection.i.e whether the computer is communicating with Arduino or not.
  2. You have to find out the correct COM Port from Device Manager and enter that with Caps On
  3. This is a VegBurgerWare ( coz i dont drink beer).So if i find u using it.You owe me a burger 😛
  4. Its not Cross best on Windows Only


My First official Arduino project…The bigger on will be ready in a few months..Although it runs on a borrowed processing code..I am trying hard to learn the same these days..But i have figured it out its uses the FFT Library and the famous Minim library to generate a waveform..which is converted to a PWM Sequence and ultimately sent to the board…


See and let me know how you find it!

The Dimmer

Dimmer from Indian Tinker on Vimeo.

I was wondering a few months back if i cud control my rooms lighting with just a mouse move…i found whole lot of complex code on the internet that made me halt..until i reached the Eg. of a Dimmer..

I build this one where i just open a java Applet on my PC and adjust the brightness of the Led( On the prototype..although i have ordered the 1W led)..

Into the technicalities a bit..i send a value based on my mouse co-ordinates to the uC and it changes the intensity of the led using PWM….

Im currently building a FFT based audio spectrum analyser..Hope it gets completed soon

I did this quite a while back..However if anyone needs the can ask for the same in the comment box!

LDR Theremin

Now wats a theremin:

well don`t bother to wiki it as i have what it says:

The theremin originally known as the aetherphone/etherophone, thereminophone or termenvox/thereminvox is an earlyelectronic musical instrument controlled without discernible physical contact from the player. It is named after its Russian inventor, Professor Léon Theremin, who patented the device in 1928. The controlling section usually consists of two metal antennas which sense the position of the player’s hands and control oscillators for frequency with one hand, and amplitude (volume) with the other, so it can be played without being touched. The electricsignals from the theremin are amplified and sent to a loudspeaker.

This physical contact can be a physical quantity in my case its light intensity ..which is measured using an LDR.

The pitch is controlled based on the analog value obtained from the microcontroller using ADC and the volume control is optional and possible with a 1k Pot.

LDR Theremin from Indian Tinker on Vimeo.

The video shows my theremin although i was not quite able to play it ..ahmm i managed to get that classic scottish sound and also that of a police vehicle..

I did this quite a while back..However if anyone needs the can ask for the same in the comment box!

Proximity Sensor (Light Based)

I often used to wonder why did the brightness of my phone and my friend`s MacbookPRO used to vary when we went closer.Its basically due to the light sensor which may also be called to proximity sensor.The closer you go the brighter the light.

LDR Proximity Sensor from Indian Tinker on Vimeo.

When you go closer the light decreases and so the led lights up..the screen shows the respective Analog values..

I did this quite a while back..However if anyone needs the can ask for the same in the comment box!


Arduino:The Introduction

Well I have been working for a while on the sponsored ( beta testing) board given to me by Teachers and Seniors.Its called a DOPEDUINO(Doped Arduino).Its an indian clone of Arduino duemolive  with an onboard Atmega168 preburnt with arduino bootloader. I`ll soon be posting great step by step tutorials on how to get started with it. Arduino–Is an opesource hardware prototyping platform that allows you to do what is called “Physical Computing”.You interact with the outside world thru sensors and process the input and produce an output.

Open Hardware

However using an Arduino u can satisfy the DIY Guy in you but you dont get to learn much about the internal working of the chips and all as the bootloader makes it easier for you by hiding things.But still its better than those AVR`s/8051  we used at our college projects in Line followers,Edge detectors etc which would often fail,dont burn,give an unexpected error at the time of competition.

I have faced it all..Although i could just blink things on 8051 architecture.But could do a lot more on an AVR ( Thanks to CodeVision AVR)..i tried and tried but couldn`t get my Atmega 16l to read the 5v and out of frustration (  i was the one responsible for all the electronics part in my gp) i literally broke one chip..( they are quite expensive)..

Then i thought may be Arduino would be better….

The link for Dopeduino is

keep reading….