Spektrum Firma 85A Brushless Smart ESC for surface vehicles is waterproof and delivers power and intelligence all in one. Without additional sensors or modules, it feeds battery and ESC telemetry data straight to your radio in real-time, all over one connection.

Like every component in the Spektrum Smart ecosystem, Firma Smart ESCs combine “plug-and-play” simplicity with the ability to communicate with other Smart electronics, creating the best-performing RC system for your vehicle.

Firma Smart ESCs do much more than regulate power. They function like a virtual engineer inside your model, providing a direct path to the vital operating data you need to reach peak performance. Firma Smart ESCs give you more confidence that your electronics are all operating at their best.

With Firma Smart ESCs, you’ll be better connected to your vehicle than ever without installing extra components that work independently. You won’t need additional wires, modules, or links. A Firma electronic speed control provides a one-wire solution for obtaining telemetry data such as RPM, temperature, battery voltage, and capacity.

Firma ESCs gather the data and send it to your transmitter in real-time instead of storing it for an after-run study. You can adjust settings as needed to boost performance on the go. The Firma Smart single-wire telemetry solution has been tested for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!

Features

• Smart all-in-one telemetry
• Fast, powerful 32-bit ARM M4 processor
• Waterproof
• Multiple options for easy programming:
  • Button programming
  • Smart ESC Programming Box
  • SmartLink USB Updating and Programmer application
• Multi-point protection:
  • Over-current protection
  • Automatic LiPo low-voltage cutoff
  • Thermal protection
  • Failsafe protection
• Developed and designed by Spektrum engineers, in partnership with the industry’s leading ESC manufacturer
• Ideal for 2WD and 4WD 1/10th scale surface applications running on 2S – 4S Lipo setups
• High current adjustable BEC (6v or 7.4v @ 4 Amps)
• Ready to install no soldering required
• Compact for easy installation in most applications
• Rugged plastic case with mounting tabs
• Aluminum heat sink for high efficiency
• Cooling fan
• Adjustable high-power BEC
• Firmware updatable through the Smart ESC Programming Box
• High heat-resistant IC connectors, backwards compatible with EC connectors
• Limited 1-year warranty

WATERPROOF

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

EC3/EC5 BACKWARDS COMPATIBLE

Firma ESCs feature IC series battery connectors. The IC series of connectors are designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. When used with an IC3 or IC5 connector-equipped Spektrum Smart battery, the ESC can receive and transmit battery telemetry data. EC3 and EC5 are also compatible with Firma ESCs for basic operation and ESC telemetry.

ONE-WIRE TELEMETRY

No need to connect multiple wires, sensors, modules, and links. With Firma ESCs, simple one-wire telemetry transmits a wide range of data directly to your transmitter in real-time, including RPM, voltage, temperature, balance, capacity, and speed.

SMART TECHNOLOGY BATTERY DATA

When used with a SpektrumSmart LiPo battery, your FirmaESC provides you with the benefit of battery telemetry that’s automatically transmitted to your compatible Spektrum radio in real time. On your transmitter screen you’ll be presented with helpful information such as number of cycles, battery capacity used and remaining, individual cell voltage and more!

MULTIPLE PROGRAMMING OPTIONS

Multiple programming options are available. Button programming can be used with nothing more needed. Using the Smart Firma ESC Programming Box, you can easily change settings at the track to suit driving conditions. An easy-to-use Smart Link USB Updating and PC Programmer app is also available.

FAST, POWERFUL M4 PROCESSOR

The Firma ESCs’ 32-bit M4 processor produces higher resolution signal input and more accurate motor output.

Specification

• Amperage:85A
• Auto Cutoff:Yes
• Battery Connector:IC5 (EC5 Compatible)
• BEC:Yes
• BEC Voltage:6.0V/7.4V Adjustable @ 4A
• Brakes:Yes
• Connector Type:IC5
• Forward:Yes
• Input Voltage:2S-3S LiPo | 5-9 Cell NiMH
• Low-Voltage Cutoff Programmable:Yes
• Maximum Burst Current:550A
• Maximum Continuous Current:85A
• Motor Output Lead:4.0mm Female Bullet
• Motor Type:Brushless
• Product Height:1.31″ (33 mm)
• Product Length:1.71″ (43 mm)
• Product Width:1.51″ (38 mm)
• Programmable:Yes
• Reverse:Yes
• Technology:Smart
• Water-Resistant:Yes

Contents

• 1) Spektrum Firma Smart ESC
• (1) Spektrum Smart Sticker Sheet
• (1) Product Manual

Requires

• (1) Spektrum Surface Receiver
• (1) Spektrum Smart Technology LiPo Battery
• (1) Spektrum Transmitter