Flash
Flash Memory Storage
- Overview
- Commands
- Samples
- On-Module Code
16 MB of on-board flash storage — no card to insert, no removable media, just non-volatile storage soldered to the module. Read or write any sector (or build your own simple file system on top) with simple text commands over any supported interface.
Common uses: factory-defined configuration storage, lookup tables, firmware-side audio samples, calibration data that needs to survive power cycles, and any project where you want storage but don't want the failure mode of a removable card.
Flash exposes raw sector-level read/write rather than a FAT file system. For file-system access, see USB Host, SD Card, or MicroSD.
Key features • 16MB Flash Storage | Resources 📄 Schematics PID: 0x080001 |
Modules ship without cables to reduce waste. Some specialty boards include a USB cable; for the rest, see Cables to add cables to your order.
Commands this module accepts. See Samples for runnable code in popular host languages.
| Function | Description |
|---|---|
SfGetid(b9) | Returns 3 bytes in b9 |
SfErase(a) | Erases a block at a address. |
SfWrite(a,b9) | Writes a byte array b9 at a address. |
SfRead(a,b9) | Reads a byte array from flash at a address. |
DVer() | This driver version. |
Peek under the hood
The script below is this module's driver — it teaches the hardware how to respond to the commands listed above. It ships pre-loaded from the factory; most users never need to open it.
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Example code that calls this module's commands from popular host languages.
New here? See Get Started to connect a module and send your first command.
- Python
- MicroPython
- JavaScript
- .NET
- Arduino
- MicroBlocks
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This sample runs in MicroBlocks on a any host board that's connected/tethered to this module, or a chain of modules. This module keeps its official DUELink firmware and module driver and responds to commands from the connected MicroBlocks-running host. New here? See the MicroBlocks page.
There are two ways to use it:
Open the full sample — the complete project (the module's library plus a ready-to-run example) opens directly on the MicroBlocks website.
Add just the libraries to your own project — copy the link, then in your MicroBlocks project click Add Library → Cloud and paste it. This loads this module's libraries into your project without replacing your current work.
Copy Library LinkCode that runs directly on this module's MCU. See how On-Module Code allows modules to run standalone.
- Script
- Arduino IDE
This example runs using the default DUELink Internal Engine using its Scripting Language, and it expects the module's driver to be loaded first, see the Commands Tab.
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See Arduino IDE page for more info.
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Ordering Info
| Product | Part Number | Price |
|---|---|---|
| DUELink Flash | GDL-STFLASH-A | $9.95 |