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Uninterrupted Power Supply (UPS) for your Arduino / Embedded IoT project

Most of the developers or people who tinker with the Arduino boards, often find it difficult to find a proper power source. Most applications are either battery powered, or are always plugged in. These systems some times, suffer interruptions as their power source run out.

We had recently introduced our 5V UPS MicroUPS ( ) for 5V devices. We had received a lot of inquires whether MicroUPS can be used for IoT projects on Arduino for power backup. The simple answer is, ‘Yes!’.

MicroUPS is a 5V UPS with MicroUSB B input and USB output port. Arduino UNO, for instance, requires 5V input. MicroUPS can be used in applications that require a continuous power back up. For example, if your Arduino project is a temperature sensor that always monitors the temperature or humidity using its sensors, the arduino might not work in the absence of main power. MicroUPS can ensure that the power supply remains in-tact when the main supply is absent, by switching to the battery power. Battery will recharge once the main supply is available again, and the Arduino will be powered from the mains when this happens.

A block diagram for the usage of MicroUPS for embedded DIY projects that need uninterrupted power supply

Not only Arduino, most embedded boards which needs up to 10W power on 5V supply voltage may be used such as ESP8266, Raspberry Pi boards ( < 2A versions ) and other embedded boards. MicroUPS comes with 5000 mAh BIS certified batteries which is mostly sufficient for common applications.

You can buy MicroUPS from or from our web store directly.

Web store:

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The accidental step into the “Big Data”

When we tried to build our android app “GeoSpeed”, we stumbled upon a lot of issues. The most prominent, and unexpected being the amount of data. Well, to be exact, the data was too huge to handle.

When we go unplanned, and then find something great, things go way out of hand. We found an untamed dragon – “The Big Data”. Then the question of handling and interpreting it came into our minds. How do we tame the dragon ?

There are people who have tamed them well, and then we went on to see the masters. We started with the simpler spell to cast – “Python”. Well, most masters believe this spell to be slower. And in fact, it seems to be true as well. Spell is pretty easy to learn and cast though. We did try to tame the dragon with the spell and it kind of worked when the dragon was smaller, and if it was not about to eat us the next moment. When the data is relatively small, and quick processing might not matter, python may be used.

Most wizards, suggested better spells, which could be faster; the spells for dragons – “Scala” & “Spark”. These spells are for the bigger dragons, and mostly helps when you are about to get eaten or fried. Mastering the spell though, is not easy as it was with “Python”. These languages are equipped to run on parallel systems or clusters, and thus is expected to be much faster compared to python.

I believe, we would share our spell reviews after we have tried to tame the quick spells. Stay tuned for our updates on Big Data !

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RDTwo: Our Experiments with Android

The emerging platform of Smartphones, and android operating system was one of the most important factors in the start up boom and culture here in India. Since the investment required was considerably less compared to hardware platforms, and as the SDK by Google was quite helpful with StackOverflow being able to solve most problems, android application grew, and with it, the startups.

Most unicorn start ups, has android application presence. We too had earlier experiences with Android Application development, and Windows Phone Application development as well.

Both SDK was pretty good to start with. Stack overflow being the encyclopedia for us.

Our Project RDTwo, is just a big analytical project. We collect data and just display the data. While working on Project RDOne, which is hardware related, we stumbled upon a few issues, and though, we should do that as well. We already had plans of expanding to Android Application Development, but didn’t even had idea that RDOne schedule would fall not behind RDTwo.

RDTwo – will be probably released as ‘GeoSpeed’. Stay tuned for more updates.

Expected release: December 1st week
Current Status: In Development