Make-@-Tronics
Pronounced - Mechatronics
Tuesday, June 3, 2014
FIRST CHOCOLATE QUADCOPTER - delicious!!!
I couldn't believe what I am seeing - an edible quad - what an idea!!
Beautiful , stable and Delicious !!
Tuesday, May 27, 2014
Lego It: Internet of Things Maker Kit
Lego It: Internet of Things Maker Kit
Its great !!
Just how I want kids to learn the electronics - easy way!
Its great !!
Just how I want kids to learn the electronics - easy way!
Saturday, May 17, 2014
New drone from Parrot corp.
I was amazed by the Parrot AR drone 2 and its predecessor - they introduced multicopters accessible to non-RC enthusiasts.They can be controlled easily using a iPad / iPhone /Android smartphone.
Now they have introduced a new version V3.0 which has the gimbal (sort of) stablised camera and FPV with oculus rift and a long range control over 2km.
Flite test crew got a first hand view of the V3.0 and a good review as soon as it was launched by Parrot corp.
Now they have introduced a new version V3.0 which has the gimbal (sort of) stablised camera and FPV with oculus rift and a long range control over 2km.
Flite test crew got a first hand view of the V3.0 and a good review as soon as it was launched by Parrot corp.
Thursday, May 15, 2014
Arduino day - Sparkfun
On the Arduino Day - Sparkfun was giving the arduino boards at throwaway prices.I saw some of them and wanted to give a try.I chose the Arduino Pro mini with Atmega 328 - 5V -16MHz and placed an order.
My bad luck it was out of stock.But they were allowing orders to be placed and they will honor all the orders.The arduino pro were @ $3 each and $2.75 as handling charger.
My order was shipped on 2 May and got it today 15 May - not bad for a post.When I opened the parcel , i was shocked by the size of the arduino mini so small, so powerful, so cute!
My bad luck it was out of stock.But they were allowing orders to be placed and they will honor all the orders.The arduino pro were @ $3 each and $2.75 as handling charger.
My order was shipped on 2 May and got it today 15 May - not bad for a post.When I opened the parcel , i was shocked by the size of the arduino mini so small, so powerful, so cute!
The packaging - super
Inside the box - two small PCBs
The arduino pro mini
Whats my plan with these ? maybe a multiwii , i already have a MPU6050 (accelerometer + Gyroscope ) board , connect it with arduino and upload the multiwii sketch - thats it board ready!
Sunday, May 11, 2014
The math behind Logo
Ever wondered about the weird shapes of Logos of popular companies like apple , Toyota ,pepsi ...
These logos have a little math behind them ,these logos are not just created by hand but also can be made using mathematical equations.
You would have seen the film' A beautiful Mind ' in which the John Nash see all the pictures and illusions as a complex mathematical pattern.
These logos have a little math behind them ,these logos are not just created by hand but also can be made using mathematical equations.
You would have seen the film' A beautiful Mind ' in which the John Nash see all the pictures and illusions as a complex mathematical pattern.
The famous Apple logo - featuring an apple missing a bite
Batman - a complex shape created using parabolas
iCloud - also a logo of circles in the golden ratio
PepsiCo
Toyota
When you look at a Logo don't just see them as an artistic piece but a masterpiece of maths with them.
Saturday, May 10, 2014
Repairing the FS-R6B Rx
I had spare FS-CT6B radio with myself if anything happens to my Spektrum Dx6i.
But when I was trying to make a RC controlled robot using Arduino ,I accidently connected the powersupply to the Rx in the reverse polarity and damaged the Rx.
I was sure that the regulator(LDO) might be the only thing damaged inside the Rx.So I decided to take apart the Rx and diagnose what is the problem.
But when I was trying to make a RC controlled robot using Arduino ,I accidently connected the powersupply to the Rx in the reverse polarity and damaged the Rx.
I was sure that the regulator(LDO) might be the only thing damaged inside the Rx.So I decided to take apart the Rx and diagnose what is the problem.
Damaged Rx
Remove the screws
The PCB and case
Bare PCB - no visible damages
Connected a 5V supply from a BEC and checked the output of the LDO,but it was just 1.21V instead of 3.3V
Now it is confirmed that the LDO is the problem.Now looking at its part number and its datasheet for Pinout.
The LDO is CA33
The datasheet on the internet
The LDO was originally a 3.3 V regulator capable of delivering upto 300mA.Searching for replacements ,I came across the AMS1117-3.3 that I had in my components box.Compared the Pinouts and spec.
The AMS1117 was capable of delivering upto 1A .Its huge when compared to the 0.3A of CA33
Comparing the datasheets
Comparison of the packages
Made a small breakout board for the AMS1117
Connect the AMS1117 to PCB and turn ON power
It works
To make the AMS1117 fit inside the case ,cut the tab on the top of AMS1117
Desoldering SMD components is a hell of a job without SMS rework station
Just cut the legs and pry it
The IC removed
A clean removal of the CA33
Now attach the AMS1117 in the place of CA33
Testing -It works
'Use hot glue to keep the AMS1117 in place
Put together the case and PCB
Another Test - working great
Vola! Saves Rs.600 by a Rs.15 replacement and some 15mins time.
My quadcopter - RCTimer 450 V2 kit
Completed my quadcopter from the 450V2 kit from RCtimer ,
450 V2 Kit -
http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=786&productname=
Landing gear for 450 kit -
http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=966&productname=
Nanowii FC -
http://www.hobbyking.com/hobbyking/store/__22322__MultiWii_NanoWii_ATmega32U4_Micro_Flight_Controller_USB_GYRO_ACC.html?strSearch=nanowii
Complete quad -
450 V2 Kit -
http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=786&productname=
Landing gear for 450 kit -
http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=966&productname=
Nanowii FC -
http://www.hobbyking.com/hobbyking/store/__22322__MultiWii_NanoWii_ATmega32U4_Micro_Flight_Controller_USB_GYRO_ACC.html?strSearch=nanowii
Complete quad -
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