On-device speech-to-text for VAHA: model and accuracy
Which Whisper model VAHA runs on its Arduino UNO Q, when phone notes reach a cloud service, and a first word error rate and speed test of base.en and small.
Read the summaryGrounded Innovation™
We build intelligence
into everyday objects.
Why we could not have built this just a few years ago. Until recently, putting real intelligence in an everyday object meant a server did the thinking, because the local version lacked the capability. That gap has closed, and that is what turns an object into a product.
We are pre-launch. Prototypes are in progress.
Latest from the workshop
Whitepapers, build notes and events, as the prototypes come together.
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Two jars, 110 glasses, and a 55–55 finish
How the day went at our IoT Summit ’26 booth in Visakhapatnam: 110 glasses scored, 86 ideas left behind, and a board that would not break the tie.
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Two jars and a live scoreboard
What we built for the IoT Summit in Vizag on 17 September 2026, and the month of drilling, wiring and pouring that got it working.
Read the note
Most of the difficulty is not the idea
Most connected hardware works fine until someone actually lives with it. Almost everything we argue about is one of these four.
It cannot depend on the network
Power cuts happen. Routers get unplugged. Plenty of homes have no usable WiFi. Ours work offline first and treat the connection as a bonus.
A false measurement is worse than none
A bathroom scale that reads differently each time stops getting used. Being wrong occasionally is enough to lose trust for good.
What happens in a house stays in it
Where a device of ours listens, the listening happens on the device. A server is something you can choose to add. It is never something we need.
It has to survive being ignored
Hardware goes unnoticed until the day it fails. Ours are built for that: heat, dust, wandering voltage, and years of nobody paying attention.
Two product lines
Each is a line rather than a single device, and each has a provisional patent filed.
In build · Provisional patent filed
RasoiMind™
The kitchen
A dedicated device for the kitchen, and the system behind it. It is our first product.
In prototype · Provisional patent filed
DharanovaConnect™
The divine
Everyday devotion, with the intelligence built in, and the system behind it.
Common questions
What does Dharanova make?
Connected hardware for the home. Two product lines are under way: RasoiMind, a device for the kitchen, and DharanovaConnect, one for everyday devotion. Both have a provisional patent filed.
Where is Dharanova based?
Visakhapatnam, Andhra Pradesh, India. Dharanova is a registered private limited company, recognised by DPIIT as a startup and registered as an MSME under Udyam.
Can I buy a Dharanova product?
Not yet. Both are pre-launch. Join the early list and we will write when there is a working unit, a date and a price.
What happens to data from a Dharanova device?
Where a device of ours listens, the listening happens on the device — raw audio does not leave it. That holds for everything we build, not just one product, and it is not something we intend to trade away later for convenience.
Does Dharanova hold any patents?
Two provisional patent applications have been filed, one for each product.
Who founded Dharanova?
Bharat Meda, Co-Founder and Chief Executive Officer, and Ravi Kumar Chintalapudi, Co-Founder and Chief Technology Officer.
Is Dharanova hiring, or looking for partners?
Both, occasionally and specifically. Please write to us.
Learn how connected devices work
Sensors, processors, radios, power and embedded software, explained from the ground up in 33 vendor-neutral pages across seven tracks. Every fact links to its source.
Choosing a microcontroller or processor
Answer six questions to find the kind of chip that fits your project, from small microcontrollers to Linux-class processors. You get a class, not a brand.
Try the toolWhat a sensor actually is
A sensor responds to something physical, like heat or force, in a way a circuit can measure. Every reading depends on how well it does that.
Read the pageOn the device or in the cloud?
Where a model runs affects speed, privacy, cost, and what happens when the network is down.
Read the pageWant to be involved early?
If you would like one of these in your own home, or you already reach a lot of households, we want to hear from you.