Programming Instructions

Spektrum SmartLink App

ESC Update and Programming App Instructions

07 – September - 2021

2904 Research Rd • Champaign, IL • 61822 • 800.535.5551 • horizonhobby.com

Using the Spektrum SmartLink App

GENERAL SETTINGS

• Flight Mode

o Fixed Wing (*)Default – For use with Aircraft and non-governed Heli models

o Helicopter – Enables the Speed governing “Govenor” mode for fixed RPM motor speeds

• Brake Type

o Disabled (*) Default – Motor will free wheel when throttle position is zero

o Normal – When throttle position is zero, the assigned brake force will be applied

o Proportional - With this option selected the throttle range changes so the ESC will not

start below 20%. The throttle will operate as normal above 20%, but moving the throttle

below 20% will apply the brakes, increasing in strength as the signal drops to 0%.

o Reverse – When selected transmitter channel is positioned between 0 – 100% travel,

the motor will run in reverse, allowing for braking during taxi/landing and reverse thrust

Please Note – Reverse mode needs to be assigned to an OPEN channel on your

transmitter, this channel is selected in ESC menu item #15 using in conjunction with

another function can cause unexpected behavior in flight.

• Brake Force – This option is adjustable from level 0 (* Default) to level 7. The higher the level, the

stronger the braking effect. When running Reverse Brake Type we recommend setting this to 7.

• Voltage Cutoff Type

o Soft Cutoff: Selecting this option will gradually reduce the ESC output to 50% of the full

power within 3 seconds after the low-voltage cutoff protection is activated.

o Hard Cutoff: Selecting this option will immediately cut off the ESC output when the low-

voltage cutoff protection is activated.

• LiPo Cells - Select Auto Calc to cause the ESC to automatically calculate the number of LiPo cells

based on a 3.7V/cell default. Alternatively, you can select a specific sell count to set the ESC to a

fixed battery configuration.

• Cutoff Voltage - Use this option to adjust the cutoff voltage from 2.8V to 3.8V/cell or disable the

cutoff voltage completely. 3.0v is the default WARNING: Discharging a LiPo battery below 2.8V/

cell may damage the battery. Attempting to charge or discharge a damaged battery can cause a

fire.