> **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

# Pre-Assembled Adafruit PiCowbell Adalogger for Pico - MicroSD, RTC & STEMMA QT

**Type:** Product page · **SKU:** ADA6355 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia)
**Page:** https://core-electronics.com.au/adafruit-picowbell-adalogger-pico-microsd-rtc-stemma-qt.html ([markdown](https://core-electronics.com.au/adafruit-picowbell-adalogger-pico-microsd-rtc-stemma-qt.html.md))

Ding dong! Hear that? It's the PiCowbell ringing, letting you know that the new Adafruit PiCowbell Adalogger is in stock and ready to assist your...

## Pricing

- **Price:** $22.95 (inc GST) — $20.86 AUD, exc GST
- **Quantity discounts:** 10+ $20.24 (exc GST) · 50+ $19.82 (exc GST)

## Availability & dispatch

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

## 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=ADA6355:1` (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/ADA6355:1.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

Ding dong! Hear that? It's the PiCowbell ringing, letting you know that the new **Adafruit PiCowbell Adalogger** is in stock and ready to assist your [Raspberry Pi Pico](https://core-electronics.com.au/raspberry-pi-pico.html) and [Pico W](https://core-electronics.com.au/raspberry-pi-pico-w-with-soldered-male-headers.html) project with handy hardware and datalogging.

**This version comes with Pico 20-pin stacking headers pre-soldered on.**

The PiCowbell Adalogger is the same size and shape as a Pico and is intended to socket underneath to make your next data logging or data reading project super easy. Micro SD card socket? Yes! STEMMA QT / Qwiic connector for fast I2C? Indeed. Real Time Clock with battery backup for accurate timekeeping? Of course!

The PiCowbell Adalogger provides you with:

- **Right angle JST SH connector for I2C / Stemma QT / Qwiic** connection. Provides 3V, GND, IO4 (SDA), and IO5 (SCL)
- **MicroSD card holder** for adding as much storage as you could possibly want for reading or writing. Connected to SPI pins 16, 18, 19 and card select on 17. Optional card detect line can be connected to pin 15.
- **PCF8523 Real Time Clock with CR1220 Coin cell backup** for many years of timekeeping. Set the time once using Adafruit's example sketches, and then you can data-log with accurate timestamps. Uses I2C.
- **Reset button** - Press to restart your program
- **Many pads on the Adalogger have a duplicate hole pad** next to it for solder-jumpering
- **The ground pads have white silkscreen rectangles** to easily identify, plus one long ground strip near the reset button
- Gold-plated pads for easy soldering

If using the Philhower Arduino core, the Wire peripheral is already set up to use IO4 and IO5. If using CircuitPython or MicroPython, you'll need to let the code know to look at 4+5 for SDA+SCL pins.

**Does not come with a [micro SD card](https://core-electronics.com.au/sd-microsd-memory-card-8-gb-sdhc.html) or a [coin cell battery](https://core-electronics.com.au/cr1220-replacement-battery-for-icufflinks-inecklace.html). A CR1220 coin cell is required to use the RTC battery-backup capabilities!** We don't include one by default to make shipping easier for those abroad, [but we do stock them, so pick one up or use any CR1220 you have handy](https://core-electronics.com.au/cr1220-replacement-battery-for-icufflinks-inecklace.html).

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA6355-1.jpg)
