> **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

# SparkFun OpenLog

**Type:** Product page · **SKU:** DEV-13712 · **Brand:** [Sparkfun](https://core-electronics.com.au/brands/sparkfun-australia)
**Page:** https://core-electronics.com.au/sparkfun-openlog.html ([markdown](https://core-electronics.com.au/sparkfun-openlog.html.md))

The SparkFun OpenLog is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB. The OpenLog can store or “log” huge amounts of serial data and act as a black box of sorts to store all the serial data that your project generates, for scientific or debugging purposes.

## Pricing

- **Price:** $29.50 (inc GST) — $26.82 AUD, exc GST
- **Quantity discounts:** 5+ $26.02 (exc GST) · 25+ $25.47 (exc GST) · 100+ $24.40 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 17 and Aug 24.

## How to buy

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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

The SparkFun OpenLog is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB. The OpenLog can store or “log” huge amounts of serial data and act as a black box of sorts to store all the serial data that your project generates, for scientific or debugging purposes.

The SparkFun OpenLog runs off of an onboard ATmega328, running at 16MHz thanks to the onboard crystal.The OpenLog draws 6mA when recording a 512 byte buffer, but as that process takes a fraction of a second, the average current draw is closer to 5mA. Keep in mind though that if you are recording a constant data stream at 115200bps, you will approach that 6mA limit. All data logged by the OpenLog is stored on the microSD card that involve the features of 64MB to 64GB capacity and FAT16 or FAT32 file type.

### Features:

- VCC Input: 3.3V-12V (Recommended 3.3V-5V)
- Log to low-cost microSD FAT16/32 cards up to 64GB
- Simple command interface
- Configurable baud rates (up to 115200bps)
- Preprogrammed ATmega328 and bootloader
- Four SPI pogo pins
- Two LEDs indicate writing status
- 2mA-6mA idle, 20mA-23mA at maximum recording rate
 
### Documents:

- [Schematic](https://core-electronics.com.au/attachments/localcontent/OpenLog_v15_496019adfd6.pdf)
- [Eagle Files](https://core-electronics.com.au/attachments/localcontent/OpenLog_v15_8727475d70f.zip)
- [Hookup Guide](https://learn.sparkfun.com/tutorials/openlog-hookup-guide)
- [Github](https://github.com/sparkfun/OpenLog)

## Guides for this product

- [Data Logging with the Micro:bit and OpenLog](https://core-electronics.com.au/guides/micro-bit/data-logging-with-the-microbit-and-openlog/)

## Videos for this product

- [How to Datalog with Micro:bit Using OpenLog and uSD Cards](https://core-electronics.com.au/videos/how-to-datalog-with-microbit-using-openlog-and-usd-cards)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/d/e/dev-13712.jpg)