> **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 # RTC Board for the BBC micro:bit **Type:** Product page · **SKU:** CE05967 · **Brand:** [Kitronik](https://core-electronics.com.au/brands/kitronik-australia) **Page:** https://core-electronics.com.au/rtc-board-for-the-bbc-micro-bit.html ([markdown](https://core-electronics.com.au/rtc-board-for-the-bbc-micro-bit.html.md)) RTC Board for the BBC micro:bit. Add real-time clock capabilities to micro:bit with the Kitronik RTC Board. Create clocks & other time functionality for micro:bit projects. MakeCode compatible. ## Pricing - **Price:** $10.42 (inc GST) — $9.47 AUD, exc GST ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 2 today; more stock is typically available with a 4–9 day lead time. ## Restrictions Restrictions apply to this equipment as it uses button/coin cell batteries: - The equipment is intended to be used in trades, professions or industries - The equipment is not intended for sale to the general public - The equipment is not intended to be used where children are present - You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above - You are aware that these restrictions are due to a change in [A](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence)[ustralian legislation in 2022](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence) for button/coin cell batteries ![Button Battery Warning](https://core-electronics.com.au/attachments/uploads/iec-button-battery.png) A declaration of use will need to be submitted during checkout. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=CE05967:1` (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/CE05967:1.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 If you haven't yet got the time for your [BBC microbit](https://core-electronics.com.au/micro-bit-v2-australia.html) projects, the Kitronik RTC Board has come to the rescue! Add Real Time Clock capabilities to the BBC micro:bit with the Kitronik RTC Board. You can use it to create clocks or to add time functionality to your micro:bit projects. The board produces a regulated 3V supply that is fed into the edge connector to power the inserted BBC micro:bit, removing the need to power the BBC micro:bit directly. The coin cell holder allows a [CR2032 battery](https://core-electronics.com.au/coin-cell-battery-20mm-cr2032.html) to power the real time clock to continue keeping time whilst there is no mains power being supplied to the board and BBC micro:bit. Power to the board can be supplied either via the Terminal blocks or the boards USB connector. Note: This USB connector is only for power supply and not for data transfer. The micro:bit RTC also has an expansion port for adding additional I2C devices with a 3V supply (for example, an OLED display), and another for extra ZIP LEDs (for example, a [ZIP Sticks](https://core-electronics.com.au/kitronik-zip-stick-5-zip-leds.html)). Kitronik have added custom blocks for the RTC board to the Microsoft MakeCode editor. The blocks can be added to the editor by; clicking the cog in the top right of the editor. Then select 'Add Package' from the drop down menu. This will open a dialog box with a search field, type Kitronik into the search field. This will bring all of Kitronik's custom block sets, scroll down to the RTC blocks and select them. The blocks will now be added to your menu and can be used in your programs. **Features** - Add Real Time Clock capabilities to the BBC micro:bit. - The coincell battery ensures that the RTC board continues to keep time when the board is not connected to a power source. - It features and expansion port for 3v I2C devices, such as an OLED display or ZIP LEDs. - Wite code using the MakeCode Editor. - Code with ease, courtesy of the custom blocks that have added to the [MakeCode Editor](https://makecode.microbit.org/). - When the RTC board is powered, it will also power the inserted microbit. **Contents** - 1 x Kitronik RTC Board. **Dimensions** - Length: 67.5mm - Width: 62mm - Height (without micro:bit): 17.6mm **Requires** - [A BBC micro:bit](https://core-electronics.com.au/micro-bit-v2-australia.html) - [1 x CR2032 battery](https://core-electronics.com.au/coin-cell-battery-20mm-cr2032.html) **Resources** - [Datasheet](https://core-electronics.com.au/attachments/localcontent/5635-kitronik-realtime-clock-microbit-rtc-datasheet_191332bb3f8.pdf) - The Microsoft [MakeCode](https://makecode.microbit.org/) Editor ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/5/6/5635_large-rtc-real-time-clock-microbit_800x.jpg)