SBK-DataLogger

Early Preview

This documentation is at early preview stage.

What is the SBK-DataLogger ?

The SBK Data Logger is the earth of the "STEM Belgian Knife" project. The SBK Data Logger is designed to ease STEM activities and technical training (FMTTN).

SBK-DataLogger is a Smart Data Logger capable of capturing physical quantity data (atmospheric pressure, luminosity, wind speed, acceleration, etc).

Very simple to use, the DataLogger automagically detects the connected sensor and identifies the data collection available.

By waiting the final product, here is a preview of the development and test version:

Display

The Data Logger fits a 3.5" display allowing the user to preview the current sensor data.

Thanks to the wider screen, the larger font used will facilitate the data visualisation.

Specimen of previewed data

The columns displays:

• Sensor identification
• Measurement short name
• last sampled data
• physical unit

Data recording

The user interface would allow to selects the data to be captured as well as the sample frequency.

Once the data logging started by the user:

1. the data are collected from sensor,
2. the data is stamped with a timestamp,
3. the data is stored inside internal memory storage.

Each new data recording will create a distinct data collection file in the internal memory storage.

The data collections are available for further extraction to a SD card under CSV file format.

Data bus

While recording the data, the measurement are actively sent over the Data Bus allowing other extension devices to perform treatments based on the collected data.

Features

DataLogger features:

• Dead Simple User Interface
• Autonomous (on batteries)
• Sample speed:
  • burst mode (as fast as possible)
  • 1/10ms, 20ms/1, 1/50ms, 1/100ms
  • 1/s to 1/h
• Copy data to SD
• Act as USB key on computer
• Data bus

Data features:

• Unit conversion
• Zero-point setup
• Basic formula (multiply/divide/mean/max/min)
• Show/Hide
• More info (on sensor)
• Formatting rules ??

Ressources

• Early prototype of sensor detection and data display (YouTube).

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Written by Meurisse D. for MCHobby