3.1.3.8. LED descriptionΒΆ

color  
blue FPGA bitstream status (in normal operation this LED is turned ON indicating 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 hartbeat blinking pattern should show CPU load (in normal operation this LED is blinking)
orange SD card access indicator (in normal operation this LED is blinking in slow intervals)