> **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

# Calliope Mini Development Board

**Type:** Product page · **SKU:** DFR0840 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/calliope-mini-development-board.html ([markdown](https://core-electronics.com.au/calliope-mini-development-board.html.md))

Willkommen, Calliope Mini! Developed in Germany for students in primary school and up, this heavenly star-shaped development board is a souped-up derivative of the...

## Pricing

- **Price:** $119.95 (inc GST) — $109.05 AUD, exc GST
- **Quantity discounts:** 6+ $103.59 (exc GST) · 12+ $99.23 (exc GST)

## Availability & dispatch

- Out of stock — the product page offers email notification when it returns.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=DFR0840:1` (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.
- **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/DFR0840:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.)
- **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

**Introduction**Willkommen, Calliope Mini! Developed in Germany for students in primary school and up, this heavenly star-shaped development board is a souped-up derivative of the [micro: bit](https://www.dfrobot.com/product-2125.html).

The main chip on the Calliope is the same nRF51822 as the micro: bit so for many purposes, it can be programmed the same way. There are some big upgrades though!

![](https://core-electronics.com.au/media/wysiwyg/product_images/Calliope-Mini-Development-Board.jpg)

**Things that are the same as the micro: bit**

- Nordic nRF51822 Multi-protocol Bluetooth® 4.0 low energy / 2.4GHz RF SoC
- 32-bit ARM Cortex M0 processor (16MHz)
- 16kB RAM
- 256kB Flash
- Bluetooth low energy
- 5x5 LED matrix display
- USB Micro B connection (programming and power supply)
- JST battery connector (3.3V)
- 2 programmable buttons
- PWM outputs
- NXP KL26z (USB UART and programming interface chip)
- Serial interface (USB + configurable ports)
- 4 analog inputs
- 8-11 Input / Output Connections (depending on software configuration)
- SPI + I2C

**Things that are new or different:**

- Instead of edge-connect pads on the bottom of the board, like the micro: bit, Calliope Mini's has a circular star design, with alligator pads on 6 corners for easy connection.
- Full 9 degrees of freedom IMU with Accelerometer, Gyroscope, Magnetometer (Bosch BMX055) - the micro: bit has only accelerometer and magenetometer, and they are different/separate chips.
- MEMS Microphone for audio input
- DC Motor Driver (TI DRV8837) to drive a single DC motor or solenoid
- Piezo Speaker
- RGB LED (WS2812B NeoPixel)
- 2 x Grove connectors (I2C + serial / analog)

**Specification**- Nordic nRF51822 Multi-protocol Bluetooth® 4.0 low energy / 2.4GHz RF SoC
- 32-bit ARM Cortex M0 processor (16MHz)
- 16kB RAM
- 256kB Flash
- Bluetooth low energy
- Operating/Supply Voltage: 3.3V

**Documents**- [User Guide](https://calliope.cc/start/programme#turquoise)
- [Datasheet](https://core-electronics.com.au/attachments/localcontent/produktblattstarterbox_13816453c8c.pdf)

**Parts List**- Calliope mini x1
- USB cable x1
- Battery holder x1
- AAA alkaline batteries x2
- Booklet German / English) x1
- Elastic band x1
- Sticker x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/f/dfr0840-family.jpg)