I made a programmable rice cooker with an induction stove and ESP32 microcontroller, a relay shield, a sharp memory display, and a few push buttons. Most rice cookers are optimized for white rice and brown rice comes out undercooked. Using this programmable rice cooker, I can adjust the heat and cook time to get better brown rice. I also use it to boil water and it shuts off automatically when the water has boiled.
Induction Heater Stove that I used
https://www.amazon.co.jp/%E3%82%A2%E3...
ESP32 Microcontroller
https://www.amazon.co.jp/ESP32-DEVKIT...