ArduinoGotchi - A real Tamagotchi emulator for Arduino UNO

Synopsis

ArduinoGotchi is a real Tamagotchi P1 emulator running in Arduino UNO hardware. The emulation core is based on TamaLib with intensive optimization to make it fit into UNO's hardware that only comes with 32K Flash 2K RAM.

Fork notice

I did following changes after forking original repo

Created platformio project, so it is easy to target multiple platforms
Created ports for ESP8266 and ESP32, mainly because speed on 8-bit AVR is just too slow
Added long click on "back" button - if you press it for 5 seconds, it will reset memory back to egg state
Added inverted Speaker connection setting. Mainly because Piezo modules that I have are active on Low. Another reason is mention below.

I personally assembled ESP8266 version with Wemos D1 Mini on perfboard, using built-in LED together with speaker, so when it sounds, led is blinking as well.

Demo

How to build and run

Use Platformio. Run build task to build for all platforms. Next run Upload task for specific platoform

Additional notes

To activate your pet, you have to configure the clock by pressing the middle button. Otherwise, your pet will not alive.
The emulator will save the game status for every 5 mintues. You can change that by changing AUTO_SAVE_MINUTES setting
The speed of the emulator is a bit slower than the actual Tamagotchi device on AVR, still, it is fun. On ESPs it runs smooth.
There are a few consts in the platformio.ini that you can adjust to fit your need:

  -D DISPLAY_I2C_ADDRESS=0x3C
  -D SCREEN_WIDTH=128
  -D SCREEN_HEIGHT=64
  -D ENABLE_TAMA_SOUND
  -D ENABLE_TAMA_SOUND_ACTIVE_LOW
  -D ENABLE_AUTO_SAVE_STATUS
  -D ENABLE_LOAD_STATE_FROM_EEPROM