> **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

# Fermion: Serial Data Logger for Arduino

**Type:** Product page · **SKU:** TEL0148 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/fermion-serial-data-logger-for-arduino.html ([markdown](https://core-electronics.com.au/fermion-serial-data-logger-for-arduino.html.md))

This Gravity: Serial Data Logger with USB function, can store data more conveniently and is suitable for long-time environmental data recording and...

## Pricing

- **Price:** $9.95 (inc GST) — $9.05 AUD, exc GST
- **Quantity discounts:** 6+ $8.59 (exc GST) · 12+ $8.23 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 19 and Aug 24.

## How to buy

- **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=TEL0148:1` (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/TEL0148:1.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

Compared to the previous [MicroSD Card Module](https://www.dfrobot.com/product-875.html), this Fermion: Serial Data Logger **can store data more conveniently, and supports direct data printing through serial port without additional codes.**

The Serial Data Logger supports 32GB TF card, making it suitable for long-time data storage. It comes with a USB function, which means you can directly connect it to a PC to read the stored files without using a card reader. Meanwhile, with the onboard LED indicator, data writing status can be viewed visually. And the onboard SAVE pin makes it easier to store data into separate files.

**![Fermion: Serial Data Logger](https://core-electronics.com.au/attachments/localcontent/1_12733e2ad02.png)**

**Connection Diagram**

**![Fermion: Serial Data Logger](https://core-electronics.com.au/attachments/localcontent/Pinout_185978d7c59.jpg)**

**Pinout**

###  Features

8. With USB function, no card reader required
9. Support multiple baud rates, with good compatibility
10. LED indicator for viewing data writing status visually
11. FAT32 file system, support 32GB TF card
###  Applications

13. Offline data collection
14. Capture product debug logs
15. Robots and drones debug
###  Specification

17. Supply Voltage: 3.3V~5V
18. Operating Current: 23mA
19. USB Protocol: USB2.0
20. Operating Temperature Range: -30°C ~ 85°C
21. Operating Humidity Range: 5%RH~85%RH
22. Dimension: 23.5\*22.5mm/0.93\*0.89”
  **Documents**24. [Product wiki](https://wiki.dfrobot.com/Fermion_Serial_Data_Logger_SKU_TEL0148)
25. [Schematics](https://core-electronics.com.au/attachments/localcontent/f0c363cdbf4c507720deb26c77c9799c_97359df0b6f.pdf)
26. [Dimensions](https://core-electronics.com.au/attachments/localcontent/93168ea9644108fe18b25b10a99a10db_31002e3a698.pdf)
27. [DXF](https://core-electronics.com.au/attachments/localcontent/c0ee4fbb11bc6fe2fea1e97a80c7bcd3_20664992791.zip)
28. [STP](https://core-electronics.com.au/attachments/localcontent/1062a9a82cc44344da6a156c9bf187cd_136391e08de.zip)
29. [PCB Package File](https://core-electronics.com.au/attachments/localcontent/950e0b361dd27a54b735ba7fca924fc2_5625213a508.zip)
###  Parts List

31. Fermion: Serial Data Logger x1
32. 2.54-5P Black Single-row Connector x2

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_12609.jpg)