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Racerstar StarF7 AIO FC board with 40A 4in1 ESC

montis — Mon, 13 Jul 2020 22:56:57 +0000

Racerstar released an interesting AIO flight controller StarF7. It is single board AIO flight controller with 4in1 ESC on the same board. It is the same type of the flight controller as Lumenier ALPHA AIO F4 FC with 30A BLHeli_32 ESC and Racerstar TattooF4S FC with 30A BLHELI_32 4in1 ESC.

Racerstar StarF7 has F722 MCU on board, ESCs run BLHeli_32 firmware, are rated for 40A continuous (45A burst) current and supports 2-6S battery input.

AIO flight controller uses most popular MPU6000 Gyro connected via SPI interface. Board provides 5V/2A and 9V/3A regulated power source for DJI digital FPV system. There are special solder pads for connecting the DJI Air module on the bottom side of the FC.

You can also find Barometer, Current sensor, OSD and flash memory for black box on the board. There are two switchable camera inputs, so you can hook up two cameras on one quad. Total weight of the board is 30g.

Available @

Banggood: https://www.banggood.com/30_5x30_5mm-Racerstar-StarF7-F7-Flight-Controller-AIO-…-1706211.html

Specification:

Model: StarF7 Flight Controller AIO 40A 4in1 ESC Board
Input Voltage: Support 2-6S Lipo
Size: 51x43mm
Mounting Hole: 30.5×30.5mm ( M4)
Weight: 30g

F7+OSD+BEC+CURRENT+DJI+BLACK BOX (DUAL CAMERA)

Input Voltage: 2-6S Lipo

Output Voltage: 5V@2A

CPU: STM32F722RET6

ICM-MPU6000 Accelerometers and Gyroscopes SPI

– MicroUSB Socket

BlackBox

40A BLheli_32 2-6S 4in1 Brushless ESC

Con. Current: 40A

Burst Current: 45A (10S)

BEC: 9V/3A

Programming: YES

Support DShot1200 In default

Package Included:

1x Racerstar StarF7 F7 FC AIO 40A ESC Board

1x bag of Screws

1x Cable

Review: Racerstar & Airbot AirF7 flight controller

montis — Mon, 21 Oct 2019 08:17:09 +0000

Airbot, known manufacturer of the quality Flight controllers and ESC’s, and Racerstar, known brand of the Banggood, together released the F7 MCU based Flight Controller AirF7.

Specifications

? STM32F722 MCU

? AB7456 OSD onboard

? 16MB Flash for blackbox

? ICM20602 Gyro

? 3-6S direct LiPo input

? 5V 3A BEC

? 9V 3A BEC(optional)

? BT module supported(optional)

? Receivers could be pluged and mounted directly on the FC(Frsky RXSR-FC and Cross fire RX)

? Highside video power switch

? Build in power filter system for main power and VTX/Camera power

? 6 UART

? 1x independent I2C(not need to share UART3)

? Independent 3.3v power source for sensors and digital devices

? “Strong pad” design, all solder pads has spare or through holes, no worry about ripped off solder pads

Racerstar AirF7

Package contains the Racerstar AirF7 FC, silicone rubber grommets and 8-pin JST-SH 1.0mm cable for connecting 4in1 ESC board.

There is the user manual included in the package.

User manual is realy low quality, printed with some angle offset and with many spelling and grammar mistakes. I havent heared of such a thing as “Speical designed filiter system “Good Dream””

User Manual states that the BEC on the right is FC BEC (5V)

But in reality the right BEC is Camera BEC (9V). You can clearly see the markings CAM_BEC on the PCB:

Actually the AirF7 user manual is based on the Airbot F7 user manual, but Racerstar should have done it better.

Airbot F7 user manual: https://store.myairbot.com//media/iverve/uploadpdf/1561739006_80127-AirbotF7-0505.pdf

Racerstar AirF7 user manual: http://myosuploads3.banggood.com/products/20190909/20190909214037RacerstarairF7.pdf

Also AirF7 user manual has no pinout information, so I have copied the pinout scheme from the Airbot F7 and made the Racerstar AirF7 board pinout scheme.

The resource table

Flight Controller in details

This AirF7 flight controller is stacked with features and surprises. Lets look at them.

The view of the flight controller top side.

The view of the back side

There is micro USB and 8-pin JST-SH 1.0mm socket for connecting to the 4in1 ESC on the right side of the board. You can find the pinout of the socket in pinout scheme above. There is BlackBox Flash 16MB memory chip right behind the USB socket.

Whole row of the pads for LEDs and UART 6 pads on the bottom part of the board. GND, 5V and LED control pads for programmable LED strips and lights. F.Port (Inverted) , 5V, GND, TX1 (uninverted) and 3.3V pads for connecting various receivers that need inversion (SBUS, FPort) or doesn’t need it. Also free TX6 and RX6 pads for UART 6 are available.

On the left side there are UART 3 pads and I2C interface pads. There is a undocumented Barometer on this FC, right behind the UART 3 pads! There are three status LEDs and buzzer pads. The connector in the middle is the SPI interface socket for connecting the External Gyro, R9MM-FC or RXSR-FC receivers.

On the top side of the board there are Camera GND, Power, Video and SmartAudio pads. Also VTX GND, Power , CameraControl and Video pads. You can see Airbot AB7456 OSD chip behind the Camera pads and AO4606 Mosfet VTX power switch behind the VTX pads. The Airbot AB7456 OSD chip uses less power, is tolerant of wider voltage swings and twice as much nvram than the commonly used MAX7456 chip. There is LED indicator besides the VTX pads to indicate the VTX power status. LED is off if the VTX power is swithed off (VTX PIT mode).

On the bottom side of the board there are GND, +5 and TX3, RX3 pads for direct soldering the Crosfire Nano or FrSky XM/XM+ receivers.

In the middle of the bottom side there is a place for soldering the optional Bluetooth module. It would use UART6 for the communication with

There are ESC solder pads in the normal and reversed order for soldering convenience.

There are Bootloader pads next to the 9V BEC, marked BOOT0.

Weight of the board is 8.6 grams.

Configuration

Racerstar AirF7 Betaflight target is AIRF7 (RAST) and is available from Betaflight 4.1.0.

There are some notes in the product page regarding the firmware, but I think these are outdated now:

Because the firmware is provisional, for 9V BEC there have 2 steps to switch on :
1. Please type in CLI as:
RESOURCE SERIAL_RX 4 NONE
set pinio_box = 40,41,42,43
aux 2 40 2 1600 2100 0
resource PINIO 1 A10
save

2. Then use AUX 3, and the range must cover 1500
we don’t know if betaflight can put this setting in the released firmware, but if it’s happened the 9V BEC not working ,you know how to resource .

Actually the board comes with RealPIT feature preconfigured on AUX3 channel.

VTX power is switched on when AUX3 is in the range. You can adjust the range or AUX channel to your needs.

[To be continued]

Available @ https://www.banggood.com/Racerstar-Airbot-airF7-F722-RealPit-Flight-Controller-5V3A-9V3A-BEC-wOSD-For-FPV-Racing-RC-Drone-p-1547585.html

Disclaimer: This item was supplied by Banggood for a fair and unbiased review. Banggood never asked for a positive review and never infuenced my opinion in any way. I’m trying my best to stay uninfluenced and give only my own opinion. All affiliate links if there are any help me purchase items for future reviews.

Racerstar BR0703C brushless micro motor

montis — Fri, 31 Aug 2018 18:31:05 +0000

Recently Racerstar released new 6mm stator sized motor BR0603C and now they are releasing its bigger brother BR0703C. It also comes in higher KV ratings – 17000KV, 19000KV, 22000KV and also has shaft fixed with two e-clips instead of hard pressing or laser welding. This ensures that motor bell will not slipp prom the shaft. Another differencied from the previous versions: motor mount pattern is 6.6mm instead of 5.5 mm, mounting screw size is 1.4mm instead of 1.6mm. Motor weight has increased from 1.9 to 2.2 grams due to the bigger base, thicker shaft , e-clips and etc.

The good news it is almost 30% cheaper then its predecessor BR0703B motor! But how good are they? Stay tuned for the thrust tests of this motor!

Available @ Banggood:

Blue: https://www.banggood.com/Racerstar-BR0703C-0703-1S-17000KV-19000KV-22000KV-Blue-FPV-Racing-Brushless-Motor-p-1345981.html

Red: https://www.banggood.com/Racerstar-BR0703C-0703-1S-17000KV-19000KV-22000KV-Red-FPV-Racing-Brushless-Motor-p-1345519.html

Specification:
Item name: BR0703C
KV: 17000KV, 19000KV , 22000KV
Colour: Red
Shaft Diameter: 1mm
Configuration:9N12P
Stator Diameter: 7mm
Stator Length: 3mm
Motor Dimension(Dia.*Len): Φ10mm*15.4mm
Terminals: JST1.25mm
NO. of Cells(Lipo): 1S
Wire length(include connector): 40mm
Weight: 2.2g

Features:
Double E-clip design, prevent Motor bell to flying off
Good Dynamic balance
Compatible for UR75/ Snapper7 Quadcopter

Racerstar BR0603C brushless micro motor

montis — Sat, 25 Aug 2018 23:31:12 +0000

Racerstar has released the newest iteration of 6mm sized brushless micro motors – BR0603C. The main differences from previous BR0603B motors are: thinner 0.8mm shaft instead of 1.0mm that allows to use standard 65mm Tiny Whoop propellers, motor mount pattern is 6.6mm instead of 5.5 mm, also mounting screw size is 1.4mm instead of 1.6mm. It comes with higher KV ratings – 17000KV, 19000KV, 22000KV. The shaft is fixed with two e-clips instead of hard pressing or laser welding. This ensures that motor bell will not slipp prom the shaft.

Stay tuned for the thrust tests of this motor!

Available @ Banggood: https://www.banggood.com/Racerstar-BR0603C-0603-17000KV-19000KV-22000KV-1S-Blue-FPV-Racing-Brushless-Motor-p-1343340.html

Specification:
Item name: BR0603C
KV: 17000KV, 19000KV , 22000KV
Colour: Blue
Shaft Diameter: 0.8mm
Configuration: 9N12P
Stator Diameter: 6mm
Stator Length: 3mm
Motor Dimension(Dia.*Len): Φ9mm*15.4mm
Terminals: JST1.25mm
NO. of Cells(Lipo): 1S
Wire length(include connector): 35mm
Weight: 1.7g

Features:
Super tiny only 1.7g
Double E-clip design, prevent Motor bell to flying off
Good Dynamic balance
0.8mm Shaft compatible Tiny whoop 0.8mm propellers
Compatible for UR65/Snapper6

New BLHeli_32 ESC – Racerstar TATTO 35A 25A 8A

montis — Tue, 23 May 2017 17:23:58 +0000

Racerstar has released?ESC with BLHeli Racerstar TATTO. They are not the first ESCs supporting BLHeli_32, but definitely the cheapest ESC on the net currently. Not much information we have about these ESC, but they are rated at 35A current with a max of 43 amps and 25A current with a max of 30?amps of current load. Supports 2-5S lipos and all the ESC communication protocols up to Dshot1200. The weight is only 3 grams for 35A version and only 2?grams for 25A version.

These ESC’s have been reported as legimate, licensed BLHeli_32 ESC’s.

Version with 25A rating:

Version with 8A?rating:

Version 35A 4in1 Tatto_s:

Version 25A 4in1 Tatto_s:

Available @ Banggood: 35A?https://www.banggood.com/Racerstar-TATTO-35A-BLheli_32Bit-2-5S-RaceSpec-Brushless-ESC-Dshot1200-Ready-for-Racing-Drone-p-1153990.html

25A?https://www.banggood.com/Racerstar-TATTO-25A-2-4S-STARM-Blheli_32bit-Dshot1200-Ready-RaceSpec-FPV-Racing-Brushless-ESC-p-1159580.html

8A:?https://www.banggood.com/0_8g-Racerstar-Tatto-8A-ST-Blheli_32-1-2S-Brushless-ESC-Dshot1200-Ready-RaceSpec-for-FPV-Racer-p-1167583.html

35A 4in1:?https://www.banggood.com/Racerstar-Tatto_S-35A-4-In-1-2-4S-STARM-Blheli_32-Dshot1200-Ready-Dual-BEC-FPV-Racing-ESC-p-1165068.html

25A 4in1:?https://www.banggood.com/Racerstar-Tatto_S-25A-4-In-1-2-4S-STARM-Blheli_32-Dshot1200-Ready-Dual-BEC-FPV-Racing-ESC-p-1165080.html

Specification Tattoo 35A:
Item Name: 35A Blheli 32Bit 2-5S Brushless ESC
Con. Current: 35A
Peak. Current: 43A
LBEC: NO
SBEC: NO
Lipo: 2-5S
Programming: Yes
Weight: 3g
Size (PCB): 27*16mm

Specification Tattoo 35A:
Item name: TATTO 25A ESC
Con. Current: 25A
Peak Current(10s): 30A

LBEC: NO
SBEC: NO
Lipo: 2-4S
Programming: YES
Weight: 2g
Size(PCB): 25*12mm

Specification Tatto 8A:
Item Name: 8A BLheli_32 1-2S Brushless ESC
Con. Current: 8A
Peak Current(10s): 10A
LBEC: NO
SBEC: NO
Lipo: 1-2S
Programming: YES
Weight: 0.8g (not inlcuding cable)
Size(PCB): 16*10mm

Specification Tatto_s 35A 4in1:
Item name: TATTO_S 35A ESC
Con. Current: 35A
Peak Current(10s): 40A
LBEC:1A/5V
SBEC:3A/12V
Lipo: 2-4S
Programming: YES
Weight:13g
Size(PCB): 36x36mm
Hole size: 30.5x30.5mm

Specification Tatto_s 25A 4in1:
Item name: TATTO_S 25A ESC
Con. Current: 25A
Peak Current(10s): 30A
LBEC:3A/5V
Lipo: 2-4S
Programming: YES
Weight:11g
Size(PCB): 36x36mm
Hole size: 30.5x30.5mm

Features:
– Blheli_32 Bits
– Support Dshot 1200 in default out from factory
– Also support Oneshot42, Oneshot125, Multishot, Dshot150, Dshot300 and Dshot600

These are ESCs, supporting BLHeli_32 so far (listed in the order of appearance):

Airbot Wraith

Wraith32 MINI 25A – https://store.myairbot.com/wraith32-mini.html

Wraith32 MINI 50A –?https://store.myairbot.com/esc/wraith32plus.html

iFlight iPeaka

iPeaka 35A 32bit BLHeli_32 ESC OPTO (2-6s) –?http://www.iflight-rc.com/ipeaka-35a-32bit-blheli-32-esc-opto-2-6s-dshot1200-compatible.html

iPeaka 50A 32bit BLHeli_32 ESC OPTO (2-6s) – ?http://www.iflight-rc.com/ipeaka-50a-32bit-blheli-32-esc-opto-2-6s-dshot1200-compatible.html

X-Racer Quadrant?

X-Racer Quadrant 2-6S 25A 32Bit BLHeli ESC –?https://www.fpvmodel.com/x-racer-quadrant-2-6s-25a-32bit-blheli-esc_g1287.html

Lumenier?

Lumenier BLHeli_32 35A – http://www.getfpv.com/lumenier-blheli-32-35a-3-6s-dshot-1200-esc-w-led.html

Lumenier BLHeli_32 50A –?http://www.getfpv.com/lumenier-blheli-32-50a-3-6s-dshot-1200-esc-w-led.html

Racerstar TATTO

Racerstar?Tattoo 35A – https://www.banggood.com/Racerstar-TATTO-35A-BLheli_32Bit-2-5S-RaceSpec-Brushless-ESC-Dshot1200-Ready-for-Racing-Drone-p-1153990.html

Racerstar?Tattoo 25A –?https://www.banggood.com/Racerstar-TATTO-25A-2-4S-STARM-Blheli_32bit-Dshot1200-Ready-RaceSpec-FPV-Racing-Brushless-ESC-p-1159580.html

Racerstar?Tattoo 8A:?https://www.banggood.com/0_8g-Racerstar-Tatto-8A-ST-Blheli_32-1-2S-Brushless-ESC-Dshot1200-Ready-RaceSpec-for-FPV-Racer-p-1167583.html

DYS BLHeli_32

DYS BLHeli_32 35A – https://www.banggood.com/DYS-BLHeli_32bit-35A-35amp-Brushless-ESC-2-6S-Dshot1200-Ready-For-FPV-Racing-p-1148598.html

Last update: 2017-07-05

Racerstar Racer22 and Racer33 – 32bit ESCs

montis — Mon, 10 Apr 2017 23:56:07 +0000

Only a few days passed from the anouncement of newcomming BLHeli_32 firmware and we already have the new Racerstar Racer22 and Racerstar Racer33?ESC’s running BLHeli_32!?These ESC’s are based on 32bit MCU, probably ARM? Cortex–M0?STM32 F0 series and they support the newest and the fastest DShot1200 protocol.

Not much information on these ESC’s yet, but we have found an interesting conversation with author of BLHeli_32 about these ESC’s:

“- Are these ESC legit or a scam?”

“-?As of now, it is scam. Because there is no BLHeli_32 code released yet. But also they are not yet available.
So maybe it will be legit and available once code is released.”

(Source: https://www.rcgroups.com/forums/showthread.php?2864611-BLHeli_32-Power-to-perform/page11)

So lets hope Racerstar will solve the licensing issues and we’ll have an opportunity to have reasonable priced Dshot1200 capable, 32bit ESC’s!

UPDATE (2017-04-13): There was an error in the product description which is corrected now. In fact these Racerstar do have 32bit MCU, but they run other firmware than BLHeli_32:

“-This was a mistake in the description.
It is not BLHeli, and that has now been corrected. ”

Racerstar Racer?ESC’s are the same (rebranded?) ESC’s as the VgoodRC Firefly 30A-LITE-O-4S. Look at the manuals for both products it is the same manual, except the name is changed:

Racerstar manual: http://files.banggood.com/2016/07/racer%20series….pdf

Vgood manual:?https://www.foxtechfpv.com/product/ESC/V-Good%20Firefly%20Manual.pdf

Racer 22A

Racer 33A

Racer 22A:?http://www.banggood.com/Racerstar-Racer22-22A-2-4S-32bit-DShot1200-Ready-FPV-Racing-Brushless-ESC-p-1141256.html

Racer 33A: http://www.banggood.com/Racerstar-Racer33-33A-2-4S-32bit-DShot1200-Ready-FPV-Racing-Brushless-ESC-p-1141289.html

Specification:
Item name: Racerstar Racer?22A Brushless ESC
Con. current: 22A
Peak current(10S): 26A
BEC: NO
Lipo: 2-4S
Programming: YES
Weight: 8.5g
Size(PCB): 27x14mm
Item name: Racerstar Racer 33A Brushless ESC
Con. current: 33A
Peak current(10S): 36A
BEC: NO
Lipo: 2-4S
Programming: YES
Weight: 9.0g
Size(PCB): 27x15mm

Racerstar STAR20 20A detachable 4in1 ESC

montis — Fri, 24 Feb 2017 01:56:57 +0000

This year FPVmodel introduced X-Racer Quadrant 25A ESC with unique detachable design. Now Racerstar made their version of this ESC – Racerstar STAR20. It has high performace EFM8BB21 MCU, with BLHELI_S firmware capable of Dshot150/Dshot300/Dshot600 and also multishot/one shot42/oneshot12. ESC ‘s are rated at 20A.
The most interesting feature is detachable 4 independant ESC’s that form a all in one solution once soldered together. Brilliant idea for a verasatile and easy installation.

Specification:
Brand Name: Racerstar
Model: Star20
Item Name: 20A BlHELI_S 2-4S detachable 4 In 1 Brushless ESC
Con. Current: 20A
Peak Current: 25A (10S)
BEC: No
Lipo: 2-4S
Programming: YES
Weight: 19g
Size: 36 x 36mm
Mounting Hole: M3, 30.5×30.5mm

Features:
– 20A Diecut 4 In 1 ESC, can be?detachable
– Blheli_S firware, support oneshot125, multishot and D-shot
– M3 30.5mm Mounting hole
– Mini size 36x36mm board and light weight 19g

Rumors: Racerstar BR0703 – New smallest brushless motor – only 7mm!

montis — Thu, 09 Feb 2017 15:09:59 +0000

We have received information from Banggood, that new small 0703 sized brushless motor is comming. Its is extremely small – stator size is only 7mm by 3mm. Weight only 1.9grams. It will probably be the smallest brushless motor on the market.

EDIT (2017-02-27): Now listed on Banggood: http://www.banggood.com/Racerstar-Racing-Edition-0703-BR0703-10000KV-1-2S-Brushless-Motor-For-6080100mm-FPV-Racer-1_9g-p-1129234.html
Some leaked photo:

And some preliminary specifications:

Multirotor Guide will be testing this super micro motor soon, so check our website later.