Professional Data Logging Made Simple

Stand-alone multi-channel data acquisition with Wi-Fi connectivity. Measure voltage, temperature, and digital signals with precision.

Uberlogger UL01 Data Logger

Built for Engineers

Everything you need for reliable data acquisition in a compact, standalone device.

8 Analog Channels

Simultaneously measure 8 voltage channels with selectable ranges of +/-10V and +/-60V per channel.

Temperature Logging

Support for 8 NTC temperature sensors for accurate thermal measurements in your projects.

6 Digital Inputs

Monitor digital signals alongside analog data for complete system observation.

Wi-Fi Control

Remote access via hotspot or connect to your network. Full REST API for programmatic control.

SD Card Storage

Log for days on 32GB SD cards without requiring a connected PC. True standalone operation.

Open Source

Full firmware source code on GitHub. Customize and extend functionality for your specific needs.

See It In Action

Watch the Uberlogger in use.

Technical Specifications

Complete specifications for the Uberlogger UL01 data acquisition device.

Analog Inputs

Number of Channels 8
ADC Resolution 12-bit / 16-bit
Voltage Range (Low) +/- 10V
Voltage Range (High) +/- 60V
Range Selection Per channel
Input Impedance High impedance

Digital Inputs

Number of Channels 6
Logic Levels 3.3V / 5V compatible
Trigger Modes External trigger support

Temperature

Sensor Type NTC Thermistors
Max Sensors 8
Compatible Sensors Ultra-Thin Film NTCs

Sampling

Sample Rate 1 - 250 Hz
Simultaneous All channels
Custom Labels Supported

Connectivity

Wi-Fi 802.11 b/g/n
Mode AP / Station
Interface Web UI + REST API
API Documentation OpenAPI Spec

Storage & Data

Storage SD Card
Max Capacity 32GB
File Format CSV / RAW
File Splitting Configurable

Software

Firmware Open Source
Platforms ESP32 + STM32
Repository GitHub
3D Enclosure STL Available

Firmware Updates

Latest Version v1.2.1
Update Method OTA / SD Card
Conversion Tool Python / Executable

Downloads

Get the latest firmware, documentation, and 3D printable enclosure files.

Firmware

v1.2.1 (Latest)

Complete firmware package with conversion tool.

Download v1.2.1

Previous Versions

v1.2.0 | v1.1.4

Source Code

ESP32 Firmware
STM32 Firmware

Documentation

Online Documentation

Complete user guide, API reference, and tutorials.

View Docs

PDF Downloads

Quickstart Manual (PDF)
Datasheet (PDF)

Hardware Files

3D Enclosure (STL)

Printable lid and enclosure for UL01B.

Download STL
$ git clone github.com/paulusTecnion/uberlogger-esp32
Cloning into 'uberlogger-esp32'...

$ cd uberlogger-esp32 && make build
Building ESP32 firmware...
Building STM32 firmware...
Build complete!

$ make flash
Flashing to device... Done!

Open Source Firmware

The Uberlogger firmware is fully open source, available on GitHub. Customize the device for your specific application, add new features, or integrate with your existing systems.

Built on proven platforms:

  • ESP32 - Wi-Fi connectivity and web interface
  • STM32 - Precise analog data acquisition

Ready to Start Logging?

Join engineers worldwide who trust Uberlogger for their data acquisition needs.

What's Included USB-C cable + 32GB SD card + 8x NTC sensors