Metro nRF52840 Express

by Adafruit

Image of Board

The Adafruit Metro nRF52840 Express is a new Metro family member with Bluetooth Low Energy and native USB support featuring the nRF52840! 

This chip has twice the flash, and four times the SRAM of its earlier sibling, the nRF52832 - 1 MB of FLASH and 256KB of SRAM. Compared to the nRF51, this board has 4-8 times more of everything.

More later!

Features:

  • ARM Cortex M4F (with HW floating point acceleration) running at 64MHz
  • 1MB flash and 256KB SRAM
  • Native Open Source USB stack - pre-programmed with UF2 bootloader
  • Bluetooth Low Energy compatible 2.4GHz radio (Details available in the nRF52840 product specification)
  • FCC / IC / TELEC certified module
  • more later!

Purchase

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CircuitPython 5.0.0-alpha.4

This is the latest unstable release of CircuitPython that will work with the Metro nRF52840 Express.

Unstable builds have the latest features but are more likely to have critical bugs.

Release Notes for 5.0.0-alpha.4

Absolute Newest

Every time we commit new code to CircuitPython we automatically build binaries for it. They are stored on Amazon S3 by language (some which may be unreleased.) Try them if you want the absolute latest and are feeling risky.

Past Releases

All previous releases are available on GitHub. They are handy for testing but we recommend the latest stable otherwise.