Speed Controller for RC

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FAQInstruction Manual



●Optimized circuit design to achieve an ESC with flat and direct performance output,

as well as reduction of energy performance loss leading to reduction in motor performance.
Since electronic components, such as ESC, are subject to a very special high load environment, we thoroughly refined the electronic circuit to optimize the balance between output and efficiency.
Besides strengthening the vibration resistance, we have further improved the drive feeling and low heat generation of the ESC and motor.
The flat, smooth, and direct performance are easy to handle for beginners as well as advanced users and demonstrates its potential in all categories.

●Stylish aluminum body based on thoroughly calculated heat dissipation design

By adopting an aluminum body, we are now able to absorb heat generated by the components and dissipate it quickly. We carefully designed our case to cover the maximum surface area for optimal heat dissipation, while keeping a unique look with a bright machined design that will attract the eye at first glance.

●3D-Bridge structure that maximizes the effect of our dedicated high-performance FAN (sold separately)

On the top of the case you will find the radiant motif “X” which stands for our product name (XARVIS) which guides the air flow to all four corners of the unit.
Since the accumulation of hot air bodies is inevitable, we have constructed a 3D-Bridge structure that guarantees a flow path and realizes high heat dissipation.
When using a dedicated FAN (sold separately), higher cooling performance can be achieved.

●Settings adjustable via TAO II ・ Compatible with memory

By using the TAO II, each setting value range is greatly expanded.
Drivability dramatically improves.
Also, since communication with TAO II uses the LINK terminal installed in front of XARVIS,
There is no need to remove the RX cable from the receiver as before.
For wireless communication between XARVIS and TAO II, an Air Link Adapter (Airlink Adapter / OP-15065) is required separately.

●Integrated switch and set button into the ESC body

Minimize wiring and make mounting on the chassis easier and tidy.

●Black color is adopted for all cables

We unified each cable to the popular black color.

●Non boost, non turbo state can be seen with LED (Often referred to as “Blinky” in stock spec races)

When the boost turbo is not used, the LED flashes,
This ensure compliance with regulations of events that restrict the use of these functions.

LED signal reference under standby state
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Product Lineup

  • 右側面
  • 左側面
  • 上面
  • 左斜め
  • 右斜め
  • 背面1
  • 背面2

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Power supply 6.0 V to 7.4V (All battery types)
Max. continuous/instant current Up to max. current produced by battery
ON resistance value 0.27 mΩ (FET standard value)
Compatible motors Sensored motor-unrestricted (when boost Aurbo is disabled)
sizes of cables AWG 12
Dimensions 30.5mm (W) x 35.0mm (D) x 20.5mm (H) (excluding projection)
Weight (ESC main unit) 50.6g
Regulator for receiver/servo 6V, 3A Output
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List of Accessories

Body 1
Instruction Manual 1
Flexible sensor wire (200mm) 1
RX black wire (200mm) 1
double face tape 2
shrinkage tube for silicon wire 1
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XARVIS update

XARVIS XX allows you to enjoy the latest functions and feelings by updating (updating) the firmware (control program). First, please refer to here, and when you are ready to update, please update according to the following procedure.

[1]Install firmware update tool for XARVIS on your PC

Acuvance Update Tool Ver.1.0.8 (Release Date, January 20, 2022) Update Download

[2] Download the latest firmware for XARVIS to your PC

  • For XARVIS
0A.00.F0.11 Ver.3.0 (Release Date, April 11, 2018) XARVIS Download

[Update contents of Ver.3.0]
・By connecting the Brain unit (TAO II All-in-One Package Accessory or OP-15012) and XARVIS using Airlink Adapter (OP-15065), wireless two - way communication with TAO II became possible as with AIRIA.
・For protection of E.S.C. and motor, AIRIA and XARVIS have programmed to gently limit the output at over 90,000 rpm. However In response to the recent expansion of user requests for demand for "Lev-Up in high revolution" and the use ratio of XARVIS exclusive high efficiency FAN (shipping ratio of our company) exceeded 70%, we have canceled the ultra high revolution control program only for XARVIS.
Along with this, we changed the output characteristic to a torque feeling from a medium speed to a high speed.
You can feel the driving with the elongation in the high speed ~ ultra high speed range than ever.
[Caution] Traveling beyond 100,000 rpm will place a high load on the ESC and the motor.
When using, we recommend that you enjoy it in combination with BS Dual / AGILE motor in addition to installing XARVIS dedicated FAN unit.

[Update contents of Ver.2.0]
・It corresponds to program controller "Ne-St". (You can continue using TAO II even after updating.)
・Throttle tracking performance has been improved by torque up in the middle and high speed range.
・Fixed a protect program that forcibly stops the circuit when a specific noise signal is detected.

  • For XARVIS 【 for Futaba S.BUS 】

− Please use this firmware when doing XARVIS setting change etc. with Futaba transmitter. −

0F.00.F1.05 Ver.F1.05 (Release Date, May 22, 2019) XARVIS Download

[Update contents of Ver.F1.05]
・The braking force was increased when the brake was suddenly applied.
・It is firmware to perform various setting data transmission / reception, data log function same as TAO II via Futaba radio system.
・Data transmission / reception via TAO II (wired / wireless) and data storage function can also be used. (But, the data log function by TAO II can not be used)
・Program controller [Ne-St] also supports.
※Since XARVIS has only one Link terminal, please change the cable when replacing the S. BUS Adapter / TAO II / Air Link Adapter (wireless specification) / Ne-St.
・Running performance is based on Firmware Ver. 3.0 for XARVIS including high rotation control program.

The forward / reverse processing of the throttle signal is opposite from the conventional XARVIS firmware.
Therefore, be sure to change the throttle mode of the transmitter to the mode opposite to the mode used in the conventional XARVIS firmware.
Ex : When used throttle in reverse mode with XARVIS Ver. 3.0 ⇒ Switch throttle to normal mode.

Therefore, when updating, please carry out with the tire floating from the ground. Because the neutral point is displaced due to the update and the motor may suddenly rotate.
Please make initial setting of throttle position (Jarvis Owner's Manual P.6) again twice after completion of update.

USince the setting data (user memory) saved in the XARVIS is reset by updating,
Please enter the setting data again.
(If you have TAO II, we recommend that you save the setting data in TAO II before updating.)

[3] Start the update tool and execute the firmware installation

The update of XARVIS is completed above!
Enjoy the latest features and feelings!

Setup manual for update tool

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