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Stripped-down Feather-Style ARM Cortex-M0 Board

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PennyBIT

This borad is a very stripped-down feather style bord using a Cortex-M0 by ST. The main goal was to create a board with a BOM <$2.5 to use in everyday projects while still preserving the key functions of a Adafruit(R) Feather, like the LiPo Charger and the pinout. As a bonus, three of the pins are driven by MOSFETs e.g. to allow the use of RBG LED strips.

Tech Spec

  • STM32F042K6T Microcontroller
  • MCP73831 LiPo Charger
  • Built in USB-bootloader
  • Access to SWD port
  • Boot button, usable as user input in normal operation
  • Pin compatible to Adafruit(R) Feather

First revision production

Current state

First batch is assembled and tested. No Problems found (yet) 😄

Assembled Boards

Note

The project was originally called "cheapFeather" so some files still carry this name.

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Stripped-down Feather-Style ARM Cortex-M0 Board

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