---
product_id: 516645972
title: "SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface"
brand: "sparkfun"
price: "$95.45"
currency: USD
in_stock: true
reviews_count: 5
category: "Spark Fun"
url: https://www.desertcart.ec/products/516645972-sparkfun-electronics-openlog-64gb-single-board-computer-voice-recorder-microsd
store_origin: EC
region: Ecuador
---

# 3.3V-12V flexible power input 64GB microSD max storage 115200bps max baud rate SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface

**Brand:** sparkfun
**Price:** $95.45
**Availability:** ✅ In Stock

## Summary

> 💾 Capture Every Byte, Power Every Project!

## Quick Answers

- **What is this?** SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface by sparkfun
- **How much does it cost?** $95.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/516645972-sparkfun-electronics-openlog-64gb-single-board-computer-voice-recorder-microsd)

## Best For

- sparkfun enthusiasts

## Why This Product

- Trusted sparkfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Robust Design:** Four SPI pogo pins and dual LEDs for easy connection and status monitoring.
- • **Versatile Serial Logging:** Configurable baud rates up to 115200bps for high-speed data capture.
- • **Ultra-Low Power Consumption:** Efficient 2mA idle current keeps your projects running longer.
- • **Massive 64GB Storage Capacity:** Store endless streams of serial data without worry.
- • **Plug & Play Arduino Compatibility:** Preprogrammed ATmega328 with Optiboot for seamless integration.

## Overview

The SparkFun OpenLog is a compact, open-source serial data logger featuring a preprogrammed ATmega328 microcontroller and support for microSD cards up to 64GB. Designed for seamless Arduino integration, it offers configurable baud rates up to 115200bps and ultra-low power consumption, making it ideal for long-term data logging in professional and hobbyist projects alike.

## 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 ATmega328 has the Optiboot bootloader loaded on it, which allows the OpenLog to be compatible with the "Arduino Uno" board setting in the Arduino IDE.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.The primary interface with the OpenLog is the FTDI header on the board edge. This header is designed to plug directly into an Arduino Pro or Pro Mini, which allows the microcontroller to send the data over a serial connection to the OpenLog.

Review: Awsome
Review: This is a great little device for logging serial output from a microcontroller. Just connect to the UART and it's preprogrammed to record output. I'm using it to record sensor output to an SD card. The firmware can be customized as needed, but I just used the firmware it shipped with.

## Features

- VCC Input: 3.3V-12V (Recommended 3.3V-5V); Configurable baud rates (up to 115200bps)
- Log to microSD FAT16/32 cards up to 32GB: Store huge amounts of data from your project
- Preprogrammed ATmega328 and bootloader: Simple command interface
- Four SPI pogo pins: For a simple connection to your project; Two LEDs: indicate writing status
- Two recording speeds: 2mA idle when nothing to record;, 6mA at maximum recording rate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B079LPZ4YD |
| Best Sellers Rank | 204,091 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 4,892 in Single-Board Computers & Accessories |
| Brand Name | SparkFun |
| Compatible Devices | Personal Computer, Laptop, Smartphone |
| Customer Reviews | 4.0 4.0 out of 5 stars (18) |
| Digital Recording Time | 55,000 minutes |
| Format | MP3 Audio |
| Hardware Interface | MicroSD |
| Headphones Jack | No headphones jack |
| Item Weight | 0.01 Kilograms |
| Manufacturer | SparkFun Electronics |
| Memory Storage Capacity | 64 GB |
| Microphone Form Factor | Built-In |
| Microphone Operation Mode | Mono |
| Model Number | SparkFun OpenLog |
| UPC | 845156006540 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** SparkFun
- **Compatible devices:** Personal Computer, Laptop, Smartphone
- **Digital recording time:** 55,000 minutes
- **Format:** MP3 Audio
- **Hardware interface:** MicroSD
- **Headphone jack:** No headphones jack
- **Item weight:** 0.01 Kilograms
- **Memory storage capacity:** 64 GB
- **Microphone form factor:** Built-In
- **Microphone operation mode:** Mono

## Images

![SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface - Image 1](https://m.media-amazon.com/images/I/61VMo1BlyKL.jpg)
![SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface - Image 2](https://m.media-amazon.com/images/I/71OujgyYjVL.jpg)
![SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface - Image 3](https://m.media-amazon.com/images/I/61molWoi6DL.jpg)
![SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface - Image 4](https://m.media-amazon.com/images/I/51CHIDabK5L.jpg)
![SparkFun Electronics OpenLog 64GB Single-Board Computer Voice Recorder with microsd interface - Image 5](https://m.media-amazon.com/images/I/51nLWeM7zrL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***N on 22 April 2025*

Awsome

### ⭐⭐⭐⭐⭐ Review
*by C***R on 11 October 2023*

This is a great little device for logging serial output from a microcontroller. Just connect to the UART and it's preprogrammed to record output. I'm using it to record sensor output to an SD card. The firmware can be customized as needed, but I just used the firmware it shipped with.

### ⭐ Review
*by J***W on 13 November 2019*

The logger is great when it works, however the mechanism that holds the SD card in place is extremely fragile and does not last long, I've ordered more than 10 over the past couple of weeks and every single one broke within a couple of days of continuous use. Can not recommend.

## Frequently Bought Together

- SparkFun OpenLog Open-source data logger works over a simple serial connection Supports microSD FAT16/32 cards up to 32GB Configurable baud rates up to 115200bps Preprogrammed ATmega328 and bootloader
- Lexar 32GB Micro SD Card 3 Pack, microSDHC UHS-I Flash Memory Card with Adapter - Up to 100MB/s, U1, Class10, V10, A1, High Speed TF Card (3 microSD Cards + 1 Adapter)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-04-01*