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LED's
Light emitting diodes
Question - What is the meaning of the LEDS'on a PARIS board?
Answers - These mean different things at different times - see below - study animations above
RED LED = power to 328 CPU is ON - should always be on
The CPU board gets power from the 5v BUS ; or USB
The Rx and 5v BUS gets power from a UBEC or a BEC on one of your ESCs - ; Rx/Tri-servo NOT powered via USB
GREEN LED on the CPU board and the Hi-Output LED(either bright white or bright green) have several functions
1) GREEN LEDS are on and stay on when the board is armed
are OFF and stay OFF when the board is DISARMED
2) blink rapidly 5 times
Cal.Sticks.Gyro of the Gyro(MP+) then goes off - wait 10 secs
3) blink medium whilst computing a Cal.Sticks.Acc of the Acc(NK) then goes off - wait 10 secs
4) blinks during initial power up then goes OFF (the very FIRST time it will not because it's never been calibrated
(see
Cal.1 Cal.2 and Cal.3 procedure - below)
5) blink slowly if a problem is detected on start-up - code error (usually calibration NOT done)
6) blink slowly if Calibration Cal.1 Cal.2 and Cal.3 not completed (see below)
7) blinks once to indicate the CPU compute's a leveling correction
8) blinks rapidly 5 times for each stick-banging throw in ACC trimming "learning" mode
9) blinks slowly after loading Software in Arduino22 and before doing the Cal.GUI.Acc (see below)