> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# 4tronix Robo:Bit Mk3 Buggy for the BBC Micro:Bit

**Type:** Product page · **SKU:** CE06540 · **Brand:** [4tronix](https://core-electronics.com.au/brands/4tronix-australia)
**Page:** https://core-electronics.com.au/4tronix-robo-bit-mk3-buggy-for-the-bbc-micro-bit.html ([markdown](https://core-electronics.com.au/4tronix-robo-bit-mk3-buggy-for-the-bbc-micro-bit.html.md))

Robo:Bit Mk3 DIY Buggy for the BBC Micro:Bit. The Mk3 is very similar to Mk2 but with all the optional extras integrated (except Talon)

## Pricing

- **Price:** $84.80 (inc GST) — $77.09 AUD, exc GST
- **Quantity discounts:** 6+ $74.01 (exc GST) · 12+ $71.69 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 1 today; more stock is typically available with a 5–11 day lead time.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE06540:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart.
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- **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there.
- **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works)
- **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt
## Description

This little buggy can be assembled very quickly using only a screwdriver. No soldering is required.

**Robo:Bit Mk3 DIY Buggy for the [BBC Micro:Bit](https://core-electronics.com.au/micro-bit-v2-australia.html)**

**NOTE: BBC Micro:Bit is NOT included. Purchase [HERE](https://core-electronics.com.au/micro-bit-v2-australia.html) if required**

Mk3 is very similar to Mk2 but with all the optional extras integrated (except Talon)

The Robobit Makecode package supports all versions of Robobit Mk3

This little buggy can be assembled very quickly using only a screwdriver. No soldering is required

An assembly guide and programming tips can be found [here.](https://4tronix.co.uk/blog/?p=1832)

### Mk3 changes:

- Integrated line following sensors
- Integrated ultrasonic distance sensor
- Integrated pen holder mounted at the axis of rotation
- Integrated 8 element LED bar (WS2812 "Smart RGB" LEDs) with “auto scanner” software support
- Motors fitted on top to make it more compact
- Screwdriver and Spanner widget tools included
 
### Contents:

- Robo:Bit Mk3 robotics controller PCB
- Battery holder PCB
- Fixings pack (motor mounts, screws, mounting pillars, caster, etc.)
- 2 x Yellow Wheels with Tyres
- 2 x Motors with pre-fitted connection wires (no soldering required)
- Screwdriver and spanner widget
 
### Using this great kit you can learn about:

- Controlling motors with simple Forwards / Reverse controls
- Controlling the speed of motors in both directions using PWM
- Use a second BBC micro:bit with the easy-to-use radio software to control the buggy
- Use the motion sensor on the micro:bit to detect collision with obstacles and avoid them
- Detect when obstacles get close and change the program to avoid the obstacles
- "Follow-Me" program that tries to stay a certain distance from the object in front
- Use the 2 line sensors either side of the non-reflective line to detect the line and keep the buggy on track
- Write more complex programs that behave as required if you meet a T-Junction or crossing of lines
- Compare different line following strategies - create a race-track and see which strategy is fastest
- In combination with the distance sensor, make it avoid obstacles on the track and then re-acquire the line
 
### Resources

[Assembly guide](https://4tronix.co.uk/blog/?p=1832)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/r/o/robo-bit-mk3-2.jpg)