YS-S4 Multi-rotor Autopilot User Manual V1.4
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Appendix
LEDIndicatorInterpretation:
TheworkingstatusoftheS4isbasicallyindicatedbytheGREEN+REDLEDs,seebelow:
FlightStatus LEDstatus Description
Manual(GPSNOTLOCKED)
1secondGREENand1secondRED
Manual(GPSLOCKED)
2secondsGreenonceperloop
Manualaltitude‐hold 2secondsGREENand1secondRED
Auto‐hover 3secondsGREEN
Firststagelowvoltagealert
2secondsRED
Finalstageurgentlowvoltagealert
3secondsRED
ReturnandLand ContinuousREDflashing
Magneticcompasscalibration
ContinuousGREENflashing
IMUError ContinuousYELLOWflashing
TheautopilotcancalculatethelowvoltagealertaccordingtotheCellNumberfilledinbytheuser.“Finalstage
lowvoltagealertNumber”=(Voltagepercell‐0.05v)*CellNumber
E.g.voltagepercell3.7‐0.05v=3.65multipliedbycellnumber=totalvoltage(14.6vfor4cells)
When
thefinallowvoltagealertisindicated,thecraftwillland(Youcanadjustthelandingpositionduring
landingbutmakesureyouDONOTpushtheTHRstickduringthisoperation.)