Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

An LED, a light emitting diode, is a light source often used as an indicator.

The onboard LEDs of the Pi (depending on the model): POWER, OK, FDX, LNK and 10M are discussed at How do I control the system LEDs using my software?

history | excerpt history