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Spektrum FIRMA 85A BL Smart ESC/40 (Spektrum XSEMC02 | SPMXSEMC02)

Model: Spektrum XSEMC02
Dist. #: SPMXSEMC02   SKU: SPMXSEMC02

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Price:  $129.99

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Updated on Sep 21, 2025 08:35:02 PM

FIRMA 85A BL Smart ESC/40...








Item Features






  • Smart all-in-one telemetry

  • Fast, effective 32-bit ARM M4 processor

  • Waterproof

  • Multiple choices for easy programming:


    • Button programming

    • Smart ESC Programs Box

    • SmartLink USB Upgrading and Programmer application


  • Multi-point security:


    • Over-current security

    • Automatic LiPo low-voltage cutoff

    • Thermal security

    • Failsafe security


  • Developed and created by Spektrum™ engineers, in partnership with the market's leading ESC maker





  • Hand-picked combo for 2WD 1/10th scale surface area applications operating on twos Lipo setups

  • Includes high efficiency and toughness Spektrum Firma 4000kV Brushless motor

  • High existing adjustable BEC (6v or 7.4v @ 4 Amps)

  • Compact for easy setup in most applications

  • All set to set up — no soldering needed

  • Rugged plastic case with mounting tabs

  • Aluminum heat sink for high performance

  • Cooling fan

  • Adjustable high-power BEC

  • Firmware updatable through the Smart ESC Programs Box

  • High heat-resistant IC™ adapters, in reverse suitable with EC™ adapters

  • Restricted 1-year guarantee








Item Overview


Like every component in the Spektrum™ Smart community, Firma™ Smart ESCs combine "plug-and-play" simplicity with the capability to communicate with other Smart electronic devices — together, producing the best-performing RC system for your automobile you can possibly imagine.


Firma Smart ESCs do far more than manage power. They operate like a virtual engineer inside your model, providing a direct course to the important operating data you need to reach peak efficiency. Firma Smart ESCs give you an extra layer of confidence that your electronic devices are all running at their best.


With Firma Smart ESCs, you'll be much better connected to your automobile than ever in the past — without installing extra elements that all work individually of each other. You won't need extra wires, modules, or links. A Firma electronic speed control offers a one-wire option for getting telemetry data such as RPM, temperature, battery voltage and capability.


Firma ESCs not only gather the data but also send it to your transmitter in real time, rather of only saving it for after-run research study. You're able to change settings as needed to increase efficiency on the go. The Firma Smart single-wire telemetry option has been evaluated for quality and efficiency by the best brands in RC. Their verdict? Smart innovation is both simpler and superior!








Needed to Complete

  • Spektrum™ Surface Area Receiver

  • Spektrum Smart Innovation LiPo Battery

  • Spektrum Transmitter





What's in package?

  • (1) Spektrum™ Firma™ Smart ESC

  • (1) Spektrum Smart sticker label sheet

  • (1) Item Handbook








Video Overview






 









WATERPROOF

WATERPROOF

The all-weather, waterproof design of Spektrum™ Firma™ Smart ESCs permits them to perform in nearly any surface under nearly any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.


 





EC3™/EC5™ BACKWARDS COMPATIBLE

EC3™/EC5™ BACKWARDS COMPATIBLE

Firma™ ESCs feature IC™ series battery adapters. The IC series of adapters are created from the ground up to supply a more solid connection, greater heat resistance, and uncomplicated setup. When utilized with an IC3™ or IC5™ connector-equipped Spektrum™ Smart battery, the ESC can receive and send battery telemetry data. EC3 and EC5 are also suitable with Firma ESCs for basic operation and ESC telemetry.


 









ONE-WIRE TELEMETRY



ONE-WIRE TELEMETRY



ONE-WIRE TELEMETRY

No need to link multiple wires, sensing units, modules, and links. With Firma™ ESCs, simple one-wire telemetry sends a vast array of data straight to your transmitter in real time, including RPM, voltage, temperature, balance, capability, and speed.*


*See compatibility chart for additional information.

 








WISE INNOVATION BATTERY DATA

SMART TECHNOLOGY BATTERY DATA

When utilized with a Spektrum™ Smart LiPo battery, your Firma™ ESC offers you with the benefit of battery telemetry that's immediately sent to your suitable Spektrum radio in real time. On your transmitter screen you'll exist with valuable information such as number of cycles, battery portion, private cell voltage and more!


 





MULTIPLE SHOWS OPTIONS

MULTIPLE PROGRAMMING OPTIONS

Multiple programming choices are available. Button programming can be utilized with absolutely nothing more needed. Using the Smart Firma™ ESC Programs Box, you can quickly alter settings at the track to fit driving conditions. A user friendly Smart Link USB Upgrading and PC Programmer app is also available.


 







 



FAST, POWERFUL M4 PROCESSOR

FAST, POWERFUL M4 PROCESSOR

The Firma™ ESCs' 32-bit M4 processor produces greater resolution signal input and more accurate motor output.




 









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