Anet A8 end print alarm box V2.

thingiverse

Anet A8 End Print Alarm Box V2 This box holds electronics for an end print alarm, placing it in a convenient and practical location. It accommodates two power switches, a buzzer, seven 4mm LEDs, and a push button, with a hole for wires. In this version, only 5mm LEDs are used, and there's a second spot for a second switch. I use an ATtiny85 chip, six high-intensity red LEDs, a 12V buzzer, and a blue LED in my setup. The X zero axis sensor sends a pulse to the ATtiny, triggering the alarm. When active, pressing the button engages the system. When triggered, it beeps five times or until the button is pressed again. If engaged and the button is pushed a second time, when triggered, it will beep continuously until the button is pressed. The blue light indicates the mode, while red LEDs turn on with the buzzer. A 433Mhz RF module has also been added. This setup provides an easy way to be alerted when the printing process ends.