UNO stopped working. The SMD chip gets very hot, it does not run the code anymore and does not communicate anymore (cannot upload anything). "ON" and "L" LEDs light up when powered.
Arduino Uno - Geeetech Wiki
Board uno r3 ATMEGA 328p ch340g 100% compatible with Arduino + wired smd pins | eBay
Arduino Uno - Geeetech Wiki
Placas Arduino | Aprendiendo Arduino
Arduino Uno - Geeetech Wiki
Arduino uno protoshield Breadboard nano breadboard shield per arduino | eBay
Placa de dezvoltare UNO R3 compatibil Arduino - ARDUSHOP
Arduino Uno Rev3 — Arduino Online Shop
Arduino UNO R3 MEGA328P ATMEGA16U2 Development Board
Development Board Atmega328p Atmega16u2 Atmega328 Dip New - AliExpress
Arduino Uno board electronics in hand for programming the microcontroller Stock Photo - Alamy