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Grades 3–5 · First Coding Step

Grobots Primo

Real coding confidence — with zero wiring anxiety.

Primo is where students first make something they built actually move on command. Built on a micro:bit v2 housed safely inside the Primo Explorer board — no exposed pins, RJ11 plug-and-play only — it gives Grades 3–4 a gentle start in MIT Scratch and steps Grade 5 up to MakeCode. With a joystick, buttons, RGB LED, buzzer, a 2-motor driver and a clip-on piano/touch board, students build a model, plug it in, and code it to move. Standalone, it runs a 40-minute coding period from Grade 3; paired with the Junior Construction Kit, it fills an 80-minute session.

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Grobots Primo coding controller for Grades 3 to 5
Grades
3–5
Session
40-min period
Connectors
RJ11 only
Coding
Scratch (3–4) · MakeCode (5)
What It Builds

From Blocks to Behaviour

Primo turns the mechanical intuition built in Grade 3 into the first taste of programming — without overwhelming young students with hardware complexity.

🎮

Code that controls motion

Students design a game-controller-style build, then program motors and outputs to respond — the first time their code visibly changes the physical world.

🧱

Block-based logic

MIT Scratch and MakeCode introduce sequencing, loops, and events in a drag-and-drop form that's age-appropriate but genuinely transferable to text code later.

🛡️

Safe, frustration-free

RJ11-only connections mean no shorted boards, no loose jumpers, and no class derailed by a wiring fault — so the lesson stays on coding, not troubleshooting.

Where It Fits

Step 2 of the Grade 3–8 Pathway

Grade 3
Junior Construction
Mechanical
→
Grades 3–5 · You are here
Grobots Primo
First coding
→
Grade 6 →
Ultima Lite
Micro:bit & sensors
More Than the Kit

What Comes With It

Grade-mapped activitiesPart of the 130-activity Grobots curriculum, with defined outcomes per lesson.
Virtual Master TrainerA teacher video for every lesson, in English and Hindi, with more Indian languages rolling out.
Onsite teacher trainingYour existing ICT teacher is trained on the full build-and-code flow.
Made-in-India supportSpares and replacements from the manufacturer, S A Digital.
Quick Answers

Common Questions

RJ11 is the simple clip-in connector used by landline phones. Components plug in one way and click into place — there are no bare wires, no breadboards, and nothing to wire incorrectly. It removes the single biggest source of frustration and breakage in primary-grade robotics.
MIT Scratch and MakeCode — both block-based, both free, and both running in a browser. They teach the same core logic (sequence, loop, event) that students later carry into Python on Ultima Lite and Ultima.
Yes. Like Junior Construction, every Primo activity is timed for a standard 40-minute ICT period including setup and cleanup, so it fits the normal timetable.
Build the Coding Habit Early

Where Code First
Moves the World.

Primo ships as part of a complete Grobots lab, with curriculum, teacher training, and the Virtual Master Trainer. Tell us your grades for a proposal within 24 hours.

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Grobots

AI & Robotics labs schools trust — branch after branch.
For CBSE schools across India.

Grobots is a brand of S A Digital
Manufacturer · GeM Quality Assessed Vendor
Implemented by AVM Infotech India Pvt. Ltd.
Indore, Madhya Pradesh, India

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© 2026 S A Digital & AVM Infotech India Pvt. Ltd. · All rights reserved.
Grobots is a brand of S A Digital · Implemented by AVM Infotech India Pvt. Ltd., Indore.
GeM Quality Assessed NEP 2020 Aligned NCF SE 2023