Unexpected Maker Feather S2

by Unexpected Maker

Image of Board

Introducing the FeatherS2 (Pre-Release) - The PRO ESP32-S2 based development board in a Feather format!

Features & Specifications

  • 32-bit 240 MHz single-core processor
  • 16 MB SPI Flash
  • 8 MB extra PSRAM
  • 2.4 GHz Wi-Fi - 802.11b/g/n
  • 3D antenna
  • 2x 700 mA 3.3 V LDO regulator
  • Optimised power path for low-power battery usage
  • LiPo battery management
  • Power (red), Charge (orange) & IO13 (blue) LEDs
  • 21x GPIO
  • USB-C
  • APA102 RGB LED (CLK IO45, DATA IO40)
  • ALS-PT19 Ambient Light Sensor (IO14)
  • QWIIC/STEMMA connector
  • Feather format

2x LDO Voltage Regulators? Yup! The first one is for the general operation of the board and the ESP32-S2, RAM and Flash.

The second LDO is for you to use to connect external 3V3 modules, sensors and peripherals, and it has programmable EN control tied to GPIO21 + it’s connected to the deep sleep capabilities of the S2, so if the S2 goes into deep sleep, the 2nd LDO is automatically shut down for you!

Pre Release Hardware? The board design is final and it works great. But right now, the only way to develop on it is with an unfinished pre-beta IDF and there is no CircuitPython, MicroPython or Arduino support. So I can’t really call this board final until I at-least have a feature complete IDF to test it against :)

Why is the board $26? Well, these are a short run of pre-production boards and buying components in small quantities is THE most expensive way to buy them. That will change when I go into production, and I expect the final production boards to be around $20.

Purchase

Contribute

Have some info to add for this board? Edit the source for this page here.

CircuitPython 6.0.0-alpha.2

This is the latest unstable release of CircuitPython that will work with the Unexpected Maker Feather S2.

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

Release Notes for 6.0.0-alpha.2

Built-in modules available: bitbangio, board, busio, digitalio, displayio, math, microcontroller, os, pulseio, random, storage, struct, supervisor, time, usb_hid, vectorio

Absolute Newest

Every time we commit new code to CircuitPython we automatically build binaries for each board and language. The binaries are stored on Amazon S3, organized by board, and then by language. Try them if you want the absolute latest and are feeling daring or want to see if a problem has been fixed.

Past Releases

All previous releases are listed on GitHub, with release notes, and are available for download from Amazon S3. They are handy for testing, but otherwise we recommend using the latest stable release. Some older GitHub release pages include the same binaries for downloading. But we have discontinued including binaries as assets on newer release pages because of the large number of files for each release.

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