Protecting GPIO input with Zener diodes - Raspberry Pi: GPIO Video Tutorial | LinkedIn Learning, formerly Lynda.com
![LAOMAO 5x Mini 650nm 5mW 5V Laser Dot Diode Modul für Arduino Raspberry Pi Prototyping : Amazon.de: Gewerbe, Industrie & Wissenschaft LAOMAO 5x Mini 650nm 5mW 5V Laser Dot Diode Modul für Arduino Raspberry Pi Prototyping : Amazon.de: Gewerbe, Industrie & Wissenschaft](https://m.media-amazon.com/images/I/51OR5HWaIpL._AC_UF894,1000_QL80_.jpg)
LAOMAO 5x Mini 650nm 5mW 5V Laser Dot Diode Modul für Arduino Raspberry Pi Prototyping : Amazon.de: Gewerbe, Industrie & Wissenschaft
![My raspberry pi 4 broke :(. Anyone know what part this is? I think it's a diode : r/RASPBERRY_PI_PROJECTS My raspberry pi 4 broke :(. Anyone know what part this is? I think it's a diode : r/RASPBERRY_PI_PROJECTS](https://preview.redd.it/tqpw84e1hm491.jpg?width=640&crop=smart&auto=webp&s=c855c1bcc4406fa39fca64ab040673b05811e8d6)