After watching the movie “The Robot” by Rajnikanth, two decades before, I was very much attracted by the movie and had always thought of creating one such robot at home. But when I enquired about the costs, it was in lakhs. After that, whenever I saw such huge robots, I used to think — only rich people can afford it. Recently while browsing through Amazon, I came to know that robots are available at a damn cheap price. The price starts from as low as Rs. 300. Of course it will not be able to do everything, but it can walk, dance — and the best part is, by writing programs, you can actually make it do many things.
This robot is a 3D printed robot, open source and fully programmable. This makes it more viable and usable for kids to explore their curiosity and thinking.
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What is this Robot exactly?
This robot is called OTTO — and trust me, it is as cute as it sounds. It is a small biped robot, meaning it walks on two legs just like us humans. The body parts are all 3D printed, and the entire robot runs on an Arduino — which is basically a small programmable chip that acts as the brain of the robot.
What makes OTTO special is that it is open source. In simple words — the entire design, the code, everything is freely available on the internet. So your child is not just playing with a toy. He or she is actually learning the same concepts that real robotics engineers use.
What all can you do with this Robot?
This is where it gets really exciting. Out of the box, your kid can make OTTO walk, dance, and even dodge obstacles automatically. But that is just the beginning.
With a little bit of coding, the same robot can be made to:
- Follow a line on the floor
- Respond to a clap using a sound sensor
- Be controlled from a mobile phone via Bluetooth — yes, your child builds their own Bluetooth-controlled robot at home
- Detect distances using an ultrasonic sensor — the same technology that cars use in reverse parking cameras
- Play tunes through a built-in buzzer — your robot can literally sing!
For the more curious kids, OTTO can be upgraded with Wi-Fi, an OLED face display, or even LED eyes. And if you have a parent who is equally excited — which honestly happens more often than you think — the robot can even be connected to the internet and controlled from anywhere in the world. The possibilities are honestly endless.
Is it difficult to assemble?
Not at all. The kit comes with 3D printed body parts, and the assembly is very straightforward — almost like building a LEGO set, but with the added thrill that this thing actually moves once you are done. Most kids between the age of 10 and 16 can assemble it with a little bit of parent guidance. And the whole assembly process itself becomes a wonderful learning experience — you spend quality time together, and your child gets to see the satisfaction of building something from scratch with their own hands.
What will my child learn from this?
This is the question every parent should ask before buying any toy. With OTTO, the learning is surprisingly deep.
Your child will get hands-on experience with basic programming, electronics, and mechanical assembly — all three in one single kit.
- When the robot walks, your child learns about balance and motion
- When the robot plays a sound, they learn how a buzzer generates different frequencies
- When the robot avoids an obstacle, they begin to understand how sensors and logic work together
- When they write their first program and see the robot respond — that moment of joy and confidence is priceless
In short — this is not a toy. This is a mini engineering lab that fits on your study table.
What is inside the Box?
The kit typically includes the 3D printed body parts — the head, body, legs, and feet. You will also need a few additional components which are easily available on Amazon India or at any local electronics shop. These include:
- 4 × SG90 servo motors — these are the “muscles” that move the legs
- 1 × Arduino Nano — the brain of the robot
- 1 × HC-SR04 Ultrasonic Sensor — for obstacle detection
- 1 × Piezo Buzzer — for sounds and music
- 1 × Battery holder
The total cost of the additional components is roughly Rs. 300 to 500, which means even with everything included, your complete OTTO robot will cost you far less than most fancy toys in the market today.
Who is this best suited for?
OTTO is ideal for kids between 10 to 16 years, especially those who are curious about science, technology, or robotics. It is also a brilliant project kit for students who have school exhibitions, science fairs, or project submissions coming up. Teachers can use it as a live demo in class for topics like motion, sound, and sensors.
Even for adults who have always been curious about how robots work — this is a fantastic entry point without burning a hole in your pocket.
Pros and Cons at a Glance
| ✅ Pros | ❌ Cons |
|---|---|
| Very affordable — starts at Rs. 300 | Requires additional electronic components |
| Fully programmable and open source | Basic coding knowledge needed for advanced features |
| Excellent STEM learning tool | No detailed Indian language instructions |
| Highly expandable and customisable | Small parts — not suitable for children under 8 |
| Great for school projects and exhibitions | Assembly may need adult supervision |
My Verdict
Two decades ago, I thought building a robot at home was a dream only the ultra-rich could afford. Today, for a few hundred rupees, your child can build, program, and control their own walking, dancing robot — and actually understand how it works from the inside.
If you want to gift your child something that sparks curiosity, builds confidence, and teaches real skills — OTTO is honestly one of the best value-for-money buys I have come across on Amazon India.
This is not just a robot. This is the beginning of your child’s journey into the world of technology.
Highly Recommended. ⭐⭐⭐⭐⭐
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This design is steller! You most certainly know how to keep a reader amused.
Between your wit and your videos, I was almost moved to
start my own blog (well, almost…HaHa!) Fantastic job.
I really enjoyed what you had to say, and more than that, how you presented it.
Too cool!
Thank you. Use shopgenie app and let me know your thoughts about it