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Hobbywing XRotor Micro 40A 2-5S 4 in 1 BLHeli_S DShot600 Ready

Hobbywing is a long time player on the market of top-notch ESCs and finally, they have come up with a 4 in 1 40 amp DShot600 ready ESC with a current sensor and support for up to 5S voltage.

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To be honest, if I had seen this ESC half year ago I would have been asking myself why 40A, but as the things are developing we may need batteries with double C rating then the ones that are already on the market, especially for motors like BrotherHobby Avenger

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The build quality is up to the Hobbywing standards. They are using EMF8BB21F16G MCUs with the operating frequency of up to 48MHz. The motor soldering pads are neatly placed on the board and not protruding from the sides as on the Racerstar 4 in 1 ESCs which from other side means that you may need a bit longer motor wires compared to the other ESCs but I don’t think that may be a problem on builds that are up to 210mm. Sometimes even on them if you are unlucky enough you may have to extend the motor wires for motors like Racerstar BR2306S that are almost suitable on 210mm frame (one of the wires could reach the soldering pads, but you will have to extend the other two). There is a dedicated connector for Hobbywing XRotor Omnibus F4 Flight Controller which means far less soldering, you will have to solder the video in and video out wires for the OSD and the SBUS connection wires for your receiver. There is also dedicated type connector on the FC, probably for a VTX, but by the time I’m typing this post it is not out yet and it seems that they will be going the “cube” path too by offering all in one stack.

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One thing to note that the ESC could only provide BEC output of 5V for up to 1.5A,  although there are 3.3V, 5.2V and 12V pads on the board they are only for voltage monitoring and they couldn’t provide the load capacity

Specification:
Brand name: Hobbywing
Item name: XRotor 40A ESC
Cont./Peak Current: 40Ax4/50Ax4
Input Voltage: 2-5S Lipo
BEC output: 5V & 1.5A
Firmware: BLHeli_S A-H-50 16.5
Input Wires: Red-14AWG-130mm / Black-14AWG-130mm
Output Wires: No wires but solder tabs
Support: DShot150/300/600,  Oneshot125, Oneshot42
Size: 42.6x36x4mm
Weight: 10g

BLHeli_32 Dshot1200 side by side comparison of the ESCs available on Banggood

After watching Joshua’s video regarding BLHeli_32 I was intrigued to see if there are any available on Banggood and to my surprise, I have found that the bigger manufacturers like RacerStar, Favourite and DYS have already come up with their models based on BLHeli_32 with Dshot1200 support.

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I have found 4 models, three of them are 35A and one is 33A. It seems that these are intended for the newer 2206 and 2207 motors that are power hungry.

These are the models that are available at the moment:

Update: The Racer33 is not running the official BLHeli_32 firmware and it is not updatable via the suite, so it is better to avoid this one.

Racerstar Racer33 33A
Con. current: 33A
Peak current(10S): 36A
BEC: NO
Lipo: 2-4S
Programming: YES
Size(PCB): 27x15mm
Weight: 9.0g
Favourite FVT LittleBee 35A
Con. current: 35A,
Peak current(10s): 40A
BEC: NO
Lipo: 2-4S Lipo
Programming: Yes
Size: 27*15mm.
Weight:8g (include Power and signal wire)
Racerstar TATTO 35A
Con. current: 35A
Peak current(10s): 43A
LBEC: NO
SBEC: NO
Lipo: 2-5S
Programming: Yes
Weight: 3g
Size (PCB): 27*16mm
DYS BLHeli_32bit 35A
Con. current: 35A
Lipo: 2-6S Lipo
Weight: 4.32g (without any cables)
Size: 32x15mm

BLHeli_32 is the third generation that runs on  ARM 32bit MCU initially Cortex-M0 running at 48MHz that could run input signals with lower latency at faster rates, you could find more info here.

The next logical step for the manufacturers would be to come up with some 4 in 1 BLHeli_32 ESCs since plenty of the pilots are using them in their super clean builds.

 

Racerstar Star20 4 in 1 ESC

Racerstar Star20 20A Blheli_S 2-4S Detachable 4 In 1 ESC first look

 

Racerstar Star20 4 in 1 ESC

Racerstar Star20 4 in 1 ESC

Star20 is the newest 4 in 1 ESC from Racerstar that for the first time offers a unique feature, each ESC is detachable.

I saw this item posted on BangGood and it seemed like a nice logical step forward in the 4 in 1 ESC development so I have decided to take a look and share my thoughts.
This is the long awaited feature for all fpv miniquad racers that are flying 4 in 1 ESC combos on their rigs either they want to have a clean build or they have some of the newer airflow optimized frames with thin arms.

I have seen several burned 4 in 1 ESCs and most of the times nobody cares to repair them so you have to throw it in the garbage even if only one FET is burned. They are a bit cheaper than buying 4 regular ESCs but it seems a waste of money throwing three working ESCs when only one is burned.

4 in 1 ESC separatedThis item is on preorder at the moment and looking at the photos, I’m not sure if the ESCs come soldered or separated (they probably packed with shrink tube). Either way, if they are separated it will be required to put a few blobs of solder in order to connect them and there is no delicate soldering required.
I think that this is the first 4 in 1 ESC of its kind and probably more will follow.

At this moment it is few bucks cheaper ($29.99+$0.34)than regular 4 in 1 20A ESC listed on BangGood from the same company.

I’m considering buying one of these since I’m planning a new build based on the X-Foot frame, but maybe I will have to wait for Racerstar to release Star30 30A 4 in 1 ESC in order to use it with some of the new powerhouse motors that are available on the market lately.

Update: It seems that FPV Model is already offering similar product X-Racer Quadrant 25A and it is in stock at the moment. The only downside is that this one is a bit longer so it may partially protrude out of the frame.