Whoop and Toothpick Flight Controllers Round Up

Whoop and Toothpick Flight Controllers Round Up

Here is a round-up of all the favored 25.5×25.5mm flight controllers for whoops and toothpick FPV drones. I’ll evaluate their specs and options that will help you resolve which AIO FC is greatest to your subsequent construct.

Table of Contents

Here is a spreadsheet with all of the flight controllers and specs: https://docs.google.com/spreadsheets/d/13MD4KUu01xPUAkwOWYkVkqEetl-WdvP52uYPpxWPawo/

Here’s a abstract of the boards:

If your spot any lacking FC, or you’re the producer who wish to have your product listed right here, be happy to let me know.

Whoop flight controller has a 25.5×25.5mm mounting sample.

They all have ESC, FC, OSD built-in in the identical board which is also called AIO FC.

Some of those boards even have built-in radio receiver in addition to VTX, which is good for many who wish to save an additional couple of grams.

They are meant to be rotated 45 levels when mounting within the body.

Toothpick is a sort of ultralight FPV drone, they’ve skinny arms that appear to be toothpicks therefore the identify.

Whoop model FC has been round for years, they usually had been “borrowed” in Toothpick builds for his or her compactness. But producers have been refining and tailor-made a particular kind of FC only for the toothpick builds.

Toothpick model FC has the very same mounting sample (25.5×25.5mm) as whoop FC, however they’re sometimes barely wider to accommodate for the additional solder pads. Motor connectors are usually prevented attributable to theirs greater resistance, although it’s not a problem for the decrease efficiency whoops.

They even have extra highly effective ESC, with sure AIO board supporting 6S as much as 55A.

The USB connectors are often oriented horizontally, as a substitute of pointing downward which is usually achieved in tiny whoops.

The actual mounting sample must be 1 inch (25.4mm).

But because of the lack of ordinary, you may even see 25.5mm, 26.0mm and even 26.5mm from completely different producers. The distinction is small and so it shouldn’t trigger issues when mounting in frames so far as I do know, however it’s a good suggestion to stay with 25.5mm to keep away from surprises.

Some of those whoop-style FC are designed for very particular functions. Ask your self these questions will allow you to filter the choices right down to a handful which makes it simpler to resolve.

  • Is it designed for whoops or toothpick frames? Some FC are designed particularly for toothpicks and tough to slot in whoop frames
  • What LiPo voltage does it help?
  • ESC present ranking
  • Motor connections – direct solder or “plug and play”
  • Integrated receiver and VTX
  • Extra UART for issues like DJI Air Unit / Vista, GPS and many others.

Here I’ll discuss among the most fascinating and iconic flight controllers.

Product Page



The Happymodel CrazyF4 ELRS flight controllers have ExpressLRS radio receiver constructed into them, and it provides you loopy good vary and excessive replace price for easy management really feel.

2.4GHz model has a brilliant tiny and compact ceramic antenna constructed on prime of the PCB whereas the 900MHz model wants an exterior antenna hooked up.

Both FC have built-in 25mW – 200mW VTX.

FC Specifications

  • MCU:STM32F411CEU6 (100MHZ, 512K FLASH)
  • Gyro: MPU-6000 (SPI connection)
  • Typical whoop board dimension 25.5×25.5mm
  • Power provide: 1S battery enter (DC 2.9V-4.35V)
  • Built-in Betaflight OSD (SPI Control)
  • Built-in 5.8G VTX
  • Built-in Serial-based ExpressLRS receiver (2.4GHz / 915MHz / 868MHz non-compulsory)
  • Built-in 5V 1A BEC
  • Flight controller firmware goal: 900MHz – CRAZYBEEF4DX / 2.4GHz – CRAZYBEEF4SX1280

ESC Specifications

  • 5A ESC (every motor) – BLHeli_S Supports DShot600
  • Power provide: 1S LiPo/LiPo HVCurrent: 5A steady peak 6A (3 seconds)
  • Factory firmware: O_H_5_REV16_8.HEX

VTX Specs

  • Output energy: 25mw, 200mw switchable
  • Frequency: 40CH
  • Input voltage: 3.3V-5.5V
  • Current consumption: 300mA(kind)
  • Frequency: 5.8GHz 5bands 40 channels(embrace Race band)
  • Smartaudio prepared

Product Page:

This FC is a typical FC for a 1S 65mm Tiny Whoop. Its comparatively low cost, comes with all of the options that you’d anticipate from one thing at this worth vary and has a Frsky built-in RX in addition to a 25mW VTX. It’s a really handy and low profile FC to make use of should you care about weight and house.

Product Page: https://fpvcycle.com/collections/new-products/products/fpvcycle-1s-aio-with-tbs-crossfire-tbs-pro32-nano-vtx

This board from FPVCycle is particularly designed to for whoop and the legendary BabyTooth model 1S builds. Good luck getting it although, all the time out of inventory.


  • 1S LiPo
  • ESC: 9A
  • Direct solder motor pads
  • F4 MCU preloaded with BF 4.1
  • BF Target: FPVCYCLEF401
  • Weight: 3g
  • 1mm thick PCB

Product Page: http://bit.ly/crazybee-f4-v3

Crazybee F4 Pro was an inexpensive board, however the newest V3 board requests a premium however does have its causes. This is the most recent and best for the micro brushless quadcopters providing an built-in RX for each DSMX and Frsky, a clear structure in a comparatively gentle product.

It gives 2S-4S battery compatibility in addition to customary whoop mounting, permitting for a variety of makes use of in a wide range of completely different sized and magnificence micro quadcopters. If you’ll be able to stretch the funds to this FC, this might be an excellent alternative.

Here is a detail overview of this FC, and all of the adjustments since V1.

Product Page

Although this board has 26x26mm mounting so it may very well be placed on a 65mm body, plainly this board is designed solely for 75mm, 85mm and 95mm model whoop frames. The greater voltage help as much as 4S LiPo can be higher suited with decrease KV motors and bigger propellers, so you’d have the ability to get the entire efficiency out of this board.

Be conscious this board doesn’t include built-in RX, subsequently you would wish to attach your personal. When it involves brushless whoops, the added weight of an exterior RX doesn’t have such a unfavourable impact as their brushed counterpart. Brushless motors present extra propulsion, so having so as to add an RX received’t be a lot of a problem – particularly with the additional room {that a} 75mm tiny whoop body would supply.

Product Page

UART3 for Rx, UART4 for DJI, UART6 for SmartAudio and the Spare UART1. Come with 2 built-in Plug & Play Ports for each digital VTX and Rx, much less solder work wanted, simple to put in.

FC Specs

  • CPU: STM32F405RGT6
  • Six-Axis: MPU6000
  • Size: 26mm x 26mm, whoop mounting sample
  • Firmware model: Batefight-BETAFPV405-4.2.X
  • OSD: Built-in BetaFlight OSD (STM32 controls OSD chip over SPI in DMA mode)
  • Receiver: Support Frsky XM/XM+ Receiver/ Futaba Receiver/ Flysky Receiver/ TBS Crossfire Receiver/DSMX Receiver
  • Connecter: XT30, it additionally will be modified to XT60 if pilots wants.
  • Weight: 5.76g

ESC Specs

  • Support PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300,Dshot600
  • Input voltage: 2S-4S Lipo
  • Continuous present: 20A
  • Peak present: 22A
  • Firmware: BLHELI-32

Product Page: http://bit.ly/33r3fXm

The GEPRC FC seems to be like a contender for the Crazybee F4 Pro V3 because it additionally accepts 2-4S. All of its options are comparable besides it doesn’t provide any built-in RX help, which shouldn’t be an excessive amount of of a problem on one thing that may carry the added weight.

This draw back is offset by its cheaper worth coming in at £33.46 in comparison with the Crazybee’s premium worth of £40. Both boards seem like an excellent alternative, so it’s as much as you to resolve if you’d like an built-in FC or not.

Product Page: https://oscarliang.com/product-npm3

FC Specs

  • FC Firmware:BF ZEUSF722_AIO(HGLR)
  • CPU: STM32F722
  • MPU: MPU6000
  • OSD: Support
  • LED: Support
  • BEC: 10V/1A
  • BEC: 5V/2A
  • Blackbox: 8MB
  • UARTS: 5
  • Input Voltage: 3-6S Lipo
  • Size: 32.5×32.5mm
  • Mounting Hole: 25.5×25.5mm, M2
  • Weight: 7.9g

ESC Specs

  • Current Sensor: NO
  • Constant Current: 13A
  • Peak Current: 15A (5S)

Product Page

F722 AIO 35A FC has specifically added a 6-pin connector for DJI Digital VTX, simply plug & play, much less solder work wanted. 6 full UARTs can be found on this board.

FC Specs

  • Item: F722 35A AIO FC(BLHeli_S)
  • Weight: 7.06g
  • CPU: STM32F722RET6
  • Six-Axis: MPU6000 (SPI connection)
  • Mounting gap dimension: 26mm * 26mm
  • Firmware model: betaflight_4.2.x_BETAFPVF722
  • OSD: Built-in BetaFlight OSD (OSD chip: AT7456E)
  • Support programmable LED like WS2812 and many others
  • Built-in present sensor

ESC Specs

  • Signal help: PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
  • Receiver: Support Frsky XM/XM+ Receiver/ Futaba Receiver/Flysky Receiver/DSMX Receiver/TBS Crossfire Receiver (requires exterior connection)
  • Input voltage: 2S-6S Lipo
  • Continuous present: 35A
  • Peak present: 40A
  • ESC firmware: BLHeli_S
  • Indicators: 2 indicators: receiver indicator (inexperienced)/Flight management energy indicator (pink)
  • Capacitance: CS|5*10*13mm|470μF|35V
  • Connecter: 80mm 14AWG silicone cable with XT60
  • Recommended motors: 14XX sequence, 15XX sequence, 16XX sequence, 18XX sequence, 20XX sequence

Product Page

FC Specs

  • CPU: STM32F405
  • Gyro: MPU6000 (SPI)
  • Blackbox: help
  • Barometer: Support
  • OSD: Support
  • IIC: Support
  • UART: UART1 for receiver, UART6 for DJI / IRC / SmartAudio
  • BEC: 5V/2.5A and 10V/2A
  • Reserved plug for DJI Air Unit
  • Support buzzer and RGB LED
  • Built-in voltage and present sensors
  • Built-in WIFI for SpeedyBee APP
  • Weight: 7.1 gram
  • Size: 33* 33mm (25.5mm mounting gap)

ESC Specs

  • Support PWM, Oneshot125, Oneshot42, Multishot, Dshot150, Dshot300, Dshot600
  • Input voltage: 3S-6S Lipo
  • Firmware: BLHELI_S G_H_30_REV16_7.HEX
  • Current ( two variations): 25A or 45A

Product Page

The iFlight Beast AIO flight controller has two variations, the F7 and H7, they’ve comparable specs with just a few variations. The H7 is a quicker processor and therefore extra future proof. But as for now there may be little to none benefit of utilizing the quicker H7 MCU. Also, the H7 has extra highly effective MOSFET and better present ranking at 55A. Therefore the H7 is $20 dearer than the F7. Both FC is highly effective sufficient for use on 5″ freestyle FPV drones.

Beast H7 Specs

Vista digital system Plug-and-Play (VBat passthrough)
MCU: BGA-STM32H743 , 480MHz
OSD: AT7456E
Gyro: MPU6000
Blackbox: 16Mb Onboard Flash
BEC output: 5V 2.5A
Barometer: DPS310 (solely works with Betaflight 4.3.0 and above)
Beast H7 Flight Controller

Gyro: MPU6000
Blackbox: 16Mb Onboard Flash
BEC output: 5V 2.5A
Barometer: DPS310 (solely works with Betaflight 4.3.0 and above)
OSD: AT7456E
FC Firmware:IFLIGHT_H743_AIO
Mounting sample: 25.5*25.5mm φ3mm
Dimensions: 32.5*32.5mm
Weight: 8.8g
Beast 55A 2-6S 4in1 ESC

Uarts: 5
Current Sensor: Yes
Input: 2-6S LIPO
Current scale: 200
Constant: 55A / Burst: 60A
BLHeli: BLHeli-S
Telemetry: no
ESC Firmware: BlheliS G-H-30
Mounting sample: 25.5*25.5mm/Φ3mm
Dimensions: 32.5*32.5mm

Beast F7 Specs

Top Features:

Vista digital system Plug-and-Play (VBAT passthrough)
MCU: BGA-STM32F745, 216MHz
OSD: AT7456E
Gyro: MPU6000
Blackbox: 8Mb Onboard Flash
BEC output: 5V 2.5A
Barometer: BMP280

Beast F7 Flight Controller

Gyro: MPU6000
Blackbox: 8Mb Onboard Flash
BEC output: 5V 2.5A
Barometer: BMP280
Connector: Micro-USB
OSD: AT7456E
FC Firmware:IFLIGHT_F745_AIO
Mounting sample: 25.5*25.5mm φ3mm
Dimensions: 32.5*32.5mm
Weight: 8.5g
Beast 45A 2-6S 4in1 ESC

Uarts: 5
Current Sensor: Yes
Input: 2-6S LIPO
Current scale: 200
Constant: 45A / Burst: 50A
BLHeli: BLHeli-S
Telemetry: no
ESC Firmware: BlheliS G-H-30
Mounting sample: 25.5*25.5mm/Φ3mm
Dimensions: 32.5*32.5mm

Edit History

  • Nov 2016 – Article created
  • Aug 2017 – Added 2 new brushed FC
  • Aug 2019 – Updated all brushed FC choices and added part for brushless FC
  • Jun 2021 – Updated complete article and product itemizing. Main focus shifted to brushless FC, eliminated brushed FC part