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?
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?