{"NAME":"HUZZAH32v2","GPIO":[1376,0,3840,0,1,1,0,0,1,1,1,1,0,0,0,1,608,1,640,0,0,1,1,1,0,1,1,0,1,1,1,4704,1,1,0,1],"FLAG":0,"BASE":1}

A Feather form factor ESP32 dev board with battery management.

This board uses an ESP32-PICO-MINI-02-N8R2 module with 8MB of flash and 2MB of PSRAM.

The board also includes a CP2102N USB-Serial chip on the USB port for easy device flashing and debug console output access.

Flashing

When the board is booted into debug by holding BOOT and pressing the RESET button the USB-Serial chip on the USB port exposes a serial connection. This can be used to easily flash new firmware.

For flashing via tasmota32.factory.bin, download the tasmota32.factory.bin file.

esptool.py --chip esp32 --baud 115200 --before default_reset --after hard_reset write_flash --erase-all -z 0x0 tasmota32.factory.bin

Device Notes

Product Guide

PCB Files

Peripherals

• WS2812B Neopixel
  • On GPIO0 (configured as WS2812) with power on GPIO2 (configured as Output Hi)
• STEMMA-QT JST-SH I2C bus connector
  • On GPIO20 (SCL) and GPIO22 (SDA), bus shared with SCL/SDA pins on board. (Configured as I2C 1)
• 1S LiPo battery management subsystem with 2-pin JST-PH connector
  • Battery voltage divider on GPIO35. (Configured as Analog1)

GPIO Pin Mapping

The user pins labelled on the board are set up as User pins in the template, allowing module configuration. This is a quick reference to map the pin label on the board to the module user pin.

Label	GPIO
A0	GPIO26
A1	GPIO25
A2	GPIO34
A3	GPIO39
A4	GPIO36
A5	GPIO34
SCK	GPIO5
MOSI	GPIO19
MISO	GPIO21
RX	GPIO8
TX	GPIO7
I37	GPIO37
SDA	GPIO22
SCL	GPIO20
IO14	GPIO14
IO32	GPIO32
IO15	GPIO15
IO33	GPIO33
IO27	GPIO27
IO12	GPIO12
IO13	GPIO13