H05R00 Module

H05R00 is a nifty little SPI-based, micro-SD card module based on STM32F0 MCU and running Fatfs file system. It is part of the upcoming Hexabitz modular prototyping system.

• Use as a stand-alone data-logger or easily integrate with other hardware via serial interfaces.
• Setup and control logging via a Command Line Interface (CLI).
• Log digital inputs, memory locations, program variables, serial streams and button actions.
• Start multiple simultaneous logs with different log variables each.
• Firmware has Fatfs embedded file system and advanced logging functionality (event logs, rate logs, sample-based, time-based, sequential naming, etc.)
• Supports SDHC micro-SD memory cards (FAT32, up to 32GB size).
• Program advanced C code with our easy-to-use APIs.
• Connect to external hardware or combine with other Hexabitz modules!

Note: This module does not ship with a micro-SD card.

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About Hexabitz

Hexabitz is a new kind of electronic prototyping platforms with game-changing modularity and a hint of biomimicry. Hexabitz modules connect with each other using a novel edge-soldering system and allow you to build tidy, compact and completely re-configurable electronic boards. Learn more about Hexabitz here.

Note: This is a pre-release of our alpha modules. We have not started shipping hardware yet. We're staging some module pages online to share technical details and prepare for a beta launch this summer. You can pre-order modules here for free or chat with us if you have any questions or feedback!

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Technical Specifications

• Five array ports and four power ports (+3.3V and GND).

• Access to 5xUART, 1xI2C, SWD, BOOT0, RESET.

• SPI-connected microSD memory card for SD and SDHC cards with full integration of Fatfs file system.

• Molex 502570-0893 microSD push-push connector with card detection.

• STM32F091CBU6 MCU.

• 8MHz external oscillator.

Physical Properties

• Shape: Hexagon

• Size: 3 cm short diagonal

• Area: 7.8 cm^2

• Soldermask Color: Dark green

• Finish: ENIG (gold) or HASL-LF (tin)

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Documentation

We developed a new form of documentation we call it the Factsheet: it's a mix between a hardware datasheet listing electrical properties and a software cheat-sheet showing you quickly the most important software functions and commands. Factsheets are color-coded and designed to be printed double-sided. We think they will come in handy for your Hexabitz projects. Let us know if you like them!

• Module factsheet

Design Files

• Module schematics [PDF]

Source Code

• H1BR60 module code repository

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FAQ

Q: How do I use H05R00 to add logging capability to my projects?

A: H05R00 module logs all sorts of signals connected to its array ports. You can stream digital data from external hardware using serial ports (UART), connect digital sensors (3.3V max) directly, connect external switches of any type (mechanical, optical, magnetic) or momentary and toggle buttons.

Q: Can I log same signal in different ways?

A: Yes! You can start two simultaneous logs of different types (rate or event) and log same or different signals.

Q: Can I log a complicated condition/combination of signals?

A: Yes! You can write C code to combine signals in complex ways and write the output to an internal RAM buffer. This buffer / memory location can then be logged either on rate- or event-basis.

Q: What's the maximum logging rate in H05R00?

A: Maximum logging rate is 1KHz. However, it depends on number of simultaneous logs and number of variables per log. Usually it is several hundred Hz in complicated scenarios.

Check our website for more information or contact us about any questions or feedback!

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See also

• H01R00 - RGB LED Module

• H03R00 - 3.3V / 1A DC-DC Buck Power Module

• H09R00 - 600VAC / 1.2A Solid State Relay Module

• H13R00 - CR2032 Coin Battery Holder Module (2 in Parallel)

• H13R10 - CR2032 Coin Battery Holder Module (2 in Series)

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