Adafruit FLORA Wearable Electronic Platform v3

Adafruit FLORA Wearable Electronic Platform v3 — Adafruit — 659
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Round, sewable ATmega32u4 development board (45 mm diameter, 4.7 g) for e-textile projects, with 14 conductive-thread pads, onboard NeoPixel, micro-USB (HID), 3.3V/250mA regulator, and a polarized JST battery connector accepting 3.5–16 V input.

Pinout

Logical pinout · physical placement not verified
ADAFRUIT FLORA WEARABLD0RXD12A11D1TXD14MISOD2SDAD15SCKD3SCLD16MOSID6A7PWMVBATTD9A9PWM3.3VD10A10PWMGND
  • D0RXsewable pad

    UART receive and GPIO

    Type · GPIO, UARTVoltage · 3.3V logic
  • D1TXsewable pad

    UART transmit and GPIO

    Type · GPIO, UARTVoltage · 3.3V logic
  • D2SDAsewable pad

    I2C data, GPIO, interrupt

    Type · GPIO, I2CVoltage · 3.3V logic
  • D3SCLsewable pad

    I2C clock, GPIO, interrupt

    Type · GPIO, I2CVoltage · 3.3V logic
  • D6A7PWMsewable pad

    GPIO, analog input, PWM

    Type · GPIO, Analog, PWMVoltage · 3.3V logic
  • D9A9PWMsewable pad

    GPIO, analog input, PWM

    Type · GPIO, Analog, PWMVoltage · 3.3V logic
  • D10A10PWMsewable pad

    GPIO, analog input, PWM

    Type · GPIO, Analog, PWMVoltage · 3.3V logic
  • D12A11sewable pad

    GPIO and analog input

    Type · GPIO, AnalogVoltage · 3.3V logic
  • D14MISO2x3 SPI header

    SPI MISO and GPIO

    Type · GPIO, SPIVoltage · 3.3V logic
  • D15SCK2x3 SPI header

    SPI clock and GPIO

    Type · GPIO, SPIVoltage · 3.3V logic
  • D16MOSI2x3 SPI header

    SPI MOSI and GPIO

    Type · GPIO, SPIVoltage · 3.3V logic
  • VBATTsewable pad

    Switched battery/USB-derived high-current output for NeoPixels or servos, not recommended as input

    Type · PowerVoltage · battery/USB selected output
  • 3.3Vsewable pad

    Onboard regulator output

    Type · PowerVoltage · 3.3V, about 100mA recommended
  • GNDsewable pad

    Ground

    Type · GroundVoltage · 0V

Start wiring

USB · 3.3 V

Confirm the data interface matches your host board.

Module pins: VBATT, 3.3V, GND, D0 / RX, D1 / TX, D2 / SDA, D3 / SCL, D6 / A7 / PWM. Schematik maps them to your board in the app.

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Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

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