3.1.1.12. Status LED Description

Colour
blue	FPGA bitstream status (in normal operation, this LED is turned on, indicating the FPGA bitstream was successfully loaded).
green	Power supply status (in normal operation, this LED is turned on, indicating that all power supplies on Red Pitaya are working properly).
red	The heartbeat blinking pattern should show CPU load (in normal operation, this LED is blinking constantly).
orange	SD card access indicator (In normal operation, this LED blinks sporadically in slow intervals).