F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)

F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)

Regular price $67.99 USD Save $-67.99 USD
-242 in stock

Based on the F405 2-4S 20A Brushless Flight Controller V4, the F405 4S 20A Toothpick Brushless Flight Controller V5 applies a new ICM42688 gyro and ESC chip that comes with BLUEJAY ESC firmware so it supports bidirectional D-shot. In addition to plug&play ports for the receiver and HD Digitial VTX the same as the V4 board, the V5 board is made with a rational layout for easy solder and preventing solder from jumping to another pad and shorting components.

Bullet Point

  • Not only is the flight controller board made with a rational layout but it is also designed with larger solder pads. It is very easy for pilots to solder external electronics.
  • The flight controller is capable of handling 20A continuous current and reaching 25A peak current due to high-quality MOSFETs.
  • Soldering motor wires to pad directly allows lower resistance for more current on motors. Besides, solder pads are reinforced by thick copper and edge plating process, ensuring a solid value and durable use.
  • Reserving the UART ports layout, UART3 for RX, UART4 for HD digital VTX, UART6 for Analog VTX and UART1 for spare use, it is more convenient for pilots to solder.
  • Come with a 25.5*25.5mm whoop mounting pattern, this board can be added to both the toothpick drone and the cinematic whoop quadcopter frame like Pavo25 and X-knight 35.


Flight Controller

  • CPU: STM32F405RGT6
  • Six-Axis: ICM42688 (SPI connection)
  • Mounting Size: 25.5*25.5mm (M2 Anti-vibration rubber damper available)
  • FC Firmware: betaflight_4.3.1_BETAFPVF405
  • OSD: Built-in Betaflight OSD (OSD chip: AT7456E)
  • Receiver: SBUS/CRSF/DSMX Receiver
  • BEC: 5V 3A
  • Built-in current sensor
  • Weight: 8.35g


  • Support D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM
  • Input voltage: 2S-4S Lipo
  • Continuous current: 20A
  • Peak current: 25A
  • Firmware: G_H_20_48_v0.16.HEX (Default BLUEJAY), BLHeli_S (Optional)

Note: F405 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware and it comes with default BLUEJAY firmware. The main difference is that the BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not support it. 

    Comparison to F405 2-4S 20A V4 FC

    We upgraded the F405 2-4S 20A V4 board to V5 by adopting ICM42688 gyro instead of MPU6000 and adding some new features. ICM42688 gyro works great in most cases. Except for the gyro, the V5 board comes with a completely new ESC firmware that supports bidirectional D-shot. The way to connect motors changed and is solderable only on the V5 board. Besides the V5 FC board features high-quality material for stability and durability. The below pictures show the difference between the two flight controllers.

    Note: The F405 2-4S 20A Flight Controller V4 with BMI270 gyro will be available for purchase for a period of time.

    Diagram for Toothpick F405 20A AIO FC V5

    The board integrates 2 LEDs, including the Power LED (Red) and the FC LED (Blue). 

    LED Status Description
    Power LED (Red) Solid Power on
    FC LED (Blue) Solid Motor Armed

    Connecting External RX/HD Digital VTX

    F405 4S 20A FC V5 integrates the Plug & Play port for the external RX and HD digital VTX, and there will be a 4-pin connector for RX and a 6-pin connector for HD digital VTX in the package. Thus, we highly recommend pilots use the port to save the solder work.

        FC & ESC Firmware

        The default firmware is including CLI dump file. But if you flash firmware from the Betaflight configurator official site, please flash a CLI dump file for F405 4S 20A FC V5. We offer the default firmware and CLI dump file to download.

        F405 4S 20A FC V5 is available to flash both BLHeli_S and BLUEJAY ESC firmware and it comes with default BLUEJAY firmware. The main difference is that the BLUEJAY firmware supports bidirectional D-shot, while BLHeli_S does not support it. Here are the download links for two firmware.

        Here are the download links for ESC firmware. Please configure the BLUEJAY firmware through ESC - Configurator or Bluejay Configurator software.

        We offer BLHeli_S ESC firmware for pilots. Please configure the BLHeli_S ESC firmware through BLheliSuite, BLHeli - Configurator, or ESC - Configurator software.

        Recommend Parts


        • 1 * F405 4S 20A Toothpick Brushless Flight Controller V5 BLHeli_S (ICM42688)
        • 1 * Cable Pigtail (XT30)
        • * 6-Pin Connector for Digital VTX
        • * 4-Pin Connector for RX
        • 4 * M2x12 Screws
        • 8 * M2 Nuts 
        • 4 * M2 Anti-vibration Rubber Dampers

          Betafpv.com offers a (30) day manufacture defect warranty, starting from the date the product(s) was delivered to the customer. If more than 30 days have passed since receiving your purchase, unfortunately we can’t offer you a refund or exchange.

          For merchandise was confirmed as genuinely defective(Product Design problem & Quality issues), we will ship out a replacement free of charge directly. The consumer will not be charged any fees for approved warranty service.

          In almost all cases, we will work with you to debug your issue firstly. 

          Each claim should have all proof of defect by mean of photo or video showing clearly the defect of the product. Please create a ticket to send us photos or video of your product, a detailed description of your issue, and a description of what you have already done to fix it. We are happy to solve any problem you may meet.

          NOTE: The refund amount is limited to the purchase price of the item.

          Directly Send Ticket: Create a new ticket

          *We do not accept ALL kinds of returns.

          *All sales are final.

          1.Shipping Time and Rules

          1.1 Estimated Shipping Time

          Expedited Shipping: 3-7 working days

          Standard Shipping (Registered Mail): 12-30 working days

          Please note:

          • There are estimated delivery time only, so BETAFPV can not guarantee an exact delivery time.
          • The estimated delivery time may be longer if any battery is included in your order.
          • If an item is out of stock, typically it takes 1-2 or more weeks to ship.
          • Incorrect information that objects to the below 1.5 Address Information Requirement may result in unsuccessful delivery and delays in receiving your package.

          1.2 Track Package

          After the order is shipped, you will receive a notification email containing the tracking number (you need to register BETAFPV website when placing the order).

          Or log in to your BETAFPV account and look at your order history which will show if it was shipped and provide a tracking link, if available, given your selected shipping methods. If your order status shows shipped but you do not see tracking that means your order is packaged and will be shipped shortly. If your status is processing it means that we have received your order and will be shipping as soon as possible.

          You can also enter the tracking number to check your package shipment status below. Please contact BETAFPV customer support for help if you are not able to track it.

          1.3 Batteries Shipping

          Some countries or remote regions are forbidden to ship stand-alone batteries due to restricted Customs rules.

          We will notify you if we are unable to ship batteries to your location. For expedited shipping like DHL, stand-alone batteries are prohibited to be shipped.Devices packed with less than or equal to two batteries like drones are available to be shipped. Devices in which Batteries contained like transmitters or goggles are accepted to be shipped without limits.

          Battery Type Definitions

          • Stand-alone: Package ONLY contains batteries or cells; NO equipment
          • Packed with: Package contains equipment + cells or batteries that are NOT installed in the equipment. For example, BNF drones with batteries or RTF drone kits.
          • Contained in: Package has lithium batteries contained in equipment (properly installed in the equipment they are intended to operate). For example, radio transmitter or goggles.

          1.4 List of Countries or Region That Prohibit From Importing Drones or Batteries

          Choosing standard shipping will be restricted.

          Asia: India, Indonesia, Malaysia, Vietnam, Philippines, Pakistan, Oman

          Africa: South Africa

          Region(Prohibit batteries): Hawaii, Puerto Rico, APO/FPO

          Note: It will be available for drones shipment if you would like to choose expedited shipping like DHL.

          1.5 Address Information Requirement

          For orders from below countries or regions below, address information has specially required. Please carefully read the following information. Incorrect information may result in unsuccessful delivery and delays in receiving your package.

          Special Regions: Orders with military or government addresses in Russia and Ukraine cannot be shipped. We reserve right to cancel the order and provide a full refund.

          Ukraine: Due to logistical restrictions, we are currently unable to ship any drones including any FPV Kits to Ukraine while batteries, frames, and other accessories can still be shipped.

          If you wish to purchase drones or kits, we apologize for the inconvenience and recommend either waiting for updates on shipping or removing the drones or kits in your order, or you could also considering purchasing from our authorized agent in Ukraine (https://rc-store.com.ua)

          Germany: Please ensure that the street address and house number information is provided in full. Omissions are not allowed.

          Japan: Please provide the full street address and house number information. Abbreviations with only numbers are not permitted.

          Australia: Please provide the correct postal code that matches the city, and ensure that the city name is written correctly without any omissions or abbreviations. Search postcodes for all suburbs and locations around Australia here. (https://auspost.com.au/postcode)

          Hong Kong or Macao: Please fill address and name in Chinese (traditional).

          Taiwan: Please fill address and name in Chinese (traditional), and provide personal ID number due to Customs requirement.

          South Korea: Please provide personal clearance code. You can apply for it from the below link if you do not have one. https://unipass.customs.go.kr/csp/index.do

          Brazil: Please provide your tax number (CPF) in your address.

          Chile: Please provide your individual tax number in your address.

          India: Please provide your Adhaar Card/Pan Card/KYC number in your address. Provide tax number if you place order as company.

          PO Boxes/APO/FPO Addresses: Shipments to PO Boxes, APO, FPO may be declined.

          1.6 BETAFPV Assume No Responsibility For Delayed Or Rejected Orders Due To The Following Reasons

          • Shipping time might be delayed for 3-7 days for transportation to remote regions. It might be 7 days longer if ships to islands area like Hawaii, Puerto Rico, Canary Islands etc.
          • Delay or delivery failure because of the consignee’s actions. These actions include, but are not limited to: changing the address after shipment, entering an unknown address or wrong address, entering incorrect contact information, and refusing to receive, etc.
          • Delay due to force majeure. “Force majeure” means an unforeseen, inevitable, or insurmountable objective situation and other objective conditions that cause delayed shipping, including, but not limited to: national or regional air or ground transportation system controls or interruptions (e.g., weather reasons), communication system interference or malfunction, government actions, postal administration policy changes, wars, earthquakes, typhoons, floods, fires, heavy rain, heavy fog, and other similar events.
          • Mail and packages cannot be delivered to the consignee’s address during weekends, national holidays, and festivals.
          • The consignee address is a school, hotel, unit, or residential community where the courier has no access. Please provide a permanent street address.

          *Please confirm your address before payment. If you enter the wrong address, please contact BETAFPV customer support in a timely manner.

          2.Shipping Method and Fee

          2.1 Standard Shipping

          We offer free standard shipping on orders of $99.99 or more. If your order does not qualify for free shipping, the shipping fee will be charged $5 on orders of $20 - $99.98; charged $10 on orders of less than $20. (Shipping fee will be different when delivering to remote countries/regions.)

          Products with big volume are excluded from free shipping rule due to dimensional weight calculated by shipping company.

          The product collections list is as follows:

          2.2 Expedited Shipping

          We offer expedited shipping service worldwide including islands area. The shipping fee will be shown on the check-out page once the expedited shipping method is chosen.

          Note: Purchasers are responsible for customs duties, taxes, customs clearance and other costs incurred when choosing expedited shipping.

          2.3 Additional Shipping Fee

          There are certain situations where you may be required to pay extra shipping fees.

          Expedited Shipping with Batteries: When choosing expedited shipping and placing an order that includes more than 2 batteries, which unfollows the 1.3 Batteries Shipping policy, an extra shipping fee will be applied to cover the separate shipping of the batteries.

          Reshipping Costs: Packages returned due to incorrect customer-provided addresses or the customs clearance cannot be completed due to customer-related issues, need to be reshipped will be subject to an additional shipping charge.


          3.1 How long until my order ships?

          All orders will be processed within 1-2 working days after your payment.

          If we are experiencing a high volume of orders or some products on back order, shipments may be delayed by a few days.

          If there will be a significant delay in the shipment of your order, we will contact you via email. Please make sure your email address is available and remember to check the email for the notification.

          3.2 After I place an order, how do I change my order before shipment?

          The nation cannot be changed once an order has been placed. If you need to change these details, please cancel the order and purchase again. Please contact BETAFPV customer support in 24 hours after placing the order if you need to change order product information or address.

          3.3 How do I cancel after I have placed the order, but it has not shipped?

          You can contact BETAFPV customer support for canceling if your order has not been shipped. If your order has been shipped less than 24 hours, please contact the customer service to help. We will try to hold your order from the shipping company.

          It is impossible to cancel if your order has been shipped over 24 hours.

          3.4 Under what circumstances will BETAFPV cancel an order unilaterally?

          Product(s) unavailable currently, BETAFPV tries to contact customers and does not get a reply in 7 days.

          High-Risk Order(s) identified by Credit Card bank or Paypal. To ensure your card safety, we will cancel your order.

          No Shipping Methods. If we are not able to ship to your location, Your order will be canceled.

          *The right of final interpretation of the shipping policy resides with BETAFPV

          *Policy information updated Feb 2024

          Customer Reviews

          Based on 3 reviews
          Hordii Pimienov

          The delivery is fast, but the quality of the board is poor. After installing the power wires, a short circuit appeared. After cleaning, the short circuit remained. Visually, the board is new.

          Patrick PRZYBOROWSKI
          QAV pro Nano whoop

          This Fc is monting in my QAV-PRO Nano whoop with DJI O3. All is Ok the whoop flying amazin.

          Markus Zsigo
          Perfect for tiny Trainer

          Built this into my Tiny Trainer. With all the plugs for receiver and the hdzero its so fast to be ready for first flight.