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ESPHome - Karotz

Replace the motherboard of your Karotz/Nabaztag with an ESP and play with the hardware.

Just play with old Nabaztag. Ears, head button, speaker, wheel and probably the input power can be reused easily. The microphone is an electret microphone, it's way easier to replace it by an i2s one.

Original idea by bemble (esphome-nabaztag)

Hardware

Components

Pinout

ESP32 Component
GPIO13 Head button (+)
GPIO14 INMP441 SCK
GPIO18 MAX98357 LRC
GPIO19 MAX98357 BCLK
GPIO21 MAX98357 DIN
GPIO22 Left ear (+)
GPIO23 Right ear (+)
GPIO25 RGB - R
GPIO26 INMP441 SD
GPIO27 INMP441 WS
GPIO32 RGB - G
GPIO33 RGB - B
GND INMP441 GND
GND INMP441 L/R
GND MAX98357 GND
GND Head button (-)
GND Left ear (-)
GND Right ear (-)
GND RGB - GND
3v3 INMP441 VDD
3v3 MAX98357 VDD

Configuration

substitutions:
  name: "espkarotz"
  friendly_name: "Karotz"
  wifi_ap_password: ap_password

packages:
  Violet.Karotz: github://hobbe/esphome-karotz/violet-nabaztag-tag.yaml@karotz

esphome:

TODO

  • add photos, schema etc
  • use ears encoder instead of basic time based rotation
  • use a led ring
  • add an optional OLED screen
  • use the wheel to manager leds max brightness (or something else, to be defined)
  • make a PCB (⚠️ Nabaztag and Karotz have different connectors)

Resources

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ESPHome files and resources for Karotz (Nabaztag)

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