# Gravity: Serial Data Logger for Arduino

**Type:** Product page · **SKU:** TEL0147 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-serial-data-logger-for-arduino.html ([markdown](https://core-electronics.com.au/gravity-serial-data-logger-for-arduino.html.md))

This Gravity: Serial Data Logger with 128MB Flash memory and USB function, can store data more conveniently and is suitable for short-time environmental...

## Pricing

- **Price:** $20.50 (inc GST) — $18.64 AUD, exc GST
- **Quantity discounts:** 6+ $17.71 (exc GST) · 12+ $16.96 (exc GST)

## Availability & dispatch

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

## Description

Compared to the old [MicroSD Card Module](https://core-electronics.com.au/microsd-card-module-for-arduino.html), this Gravity: Serial Data Logger **can store data more conveniently, and supports direct data printing through serial port without additional codes.**

The Serial Data Logger provides onboard 128MB Flash memory, no more TF card required. It comes with a USB function, which means you can directly connect it to a PC computer 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 key makes it easier to store data into separate files.

**Connect Diagram**

![Connection diagram for the Serial Data logger, TX from the Arduino to the RX of the logger module](https://core-electronics.com.au/media/wysiwyg/product_images/tel0147-connection-diagram.jpg)

### Features

- With USB function, no card reader required
- Onboard 128MB Flash memory, no TF card required
- Support multiple baud rates, good compatibility
- LED indicator for viewing data writing status visually

### Applications

- Offline data collection
- Capture product log grab
- Robots and drones debug

### Specification

- Supply Voltage: 3.3V~5V
- Operating Current: 32mA
- USB Protocol: USB2.0
- Operating Temperature Range: -30°C ~ 85°C
- Operating Humidity Range: 5%RH~85%RH
- Dimension: 32\*27mm/1.26\*1.06”

### Documents

- [Product wiki](https://wiki.dfrobot.com/Gravity_Serial_Data_Logger_SKU_TEL0147)

### Parts List

- Gravity: Serial Data Logger x1
- 2.54-5P Black Single-row Connector x2
- Gravity-4P I2C/UART Sensor Cable x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_12455.jpg)