express name
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zlog2012
- Posts: 28
- Joined: Wed Sep 26, 2012 12:39 pm
express name
A lot of Adafruit products use the name 'express'. What does the name express mean ?
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danhalbert
- Posts: 4686
- Joined: Tue Aug 08, 2017 12:37 pm
Re: express name
"Express" means that the board includes an extra SPI flash memory chip, usually 2MB. CircuitPython uses the chip as a tiny filesystem (CIRCUITPY) to store programs and libraries. CIRCUITPY appears as a FAT12 USB drive on the host computer. The non-Express boards also provide CIRCUITPY, but they use a section of the on-chip flash memory, and there's only room for a 64KB filesystem.
If you're using Arduino, you can also use that chip for extra storage, but the USB drive feature is not available.
If you're using Arduino, you can also use that chip for extra storage, but the USB drive feature is not available.
Please be positive and constructive with your questions and comments.