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

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.

Specifications

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

ESC

  • ESC Chip: SILABS EFM8BB21F16G-C
  • 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

        Package

        • 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

          Shipping Method & Delivery Times

          We offer the following shipping options:

          Expedited Shipping: Estimated delivery in 3-7 working days via DHL/FedEx.

          Standard Shipping: Estimated delivery in 12-30 working days via registered mail.

          Please expect a processing time of 1-2 business days (Mon–Fri, excluding holidays).

          IMPORTANT:

          • Delivery estimates are not guaranteed and may vary due to shipping address, customs clearance and carrier delays.
          • Battery orders: Expect more business days for safety inspections.
          • Out-of-stock items: Ships in 1–2 weeks (we’ll notify you via email).
          • Address errors: Double-check your shipping details during checkout. Incorrect/missing addresses cause delays or failed deliveries.

          Shipping Costs

          1. Standard Shipping

          We offer free standard shipping on all orders of $99.99 or more. For orders between $20 – $99.98, a flat rate of $5 applies. For orders under $20, a flat rate of $10 applies.

          IMPORTANT: Starting April 24, all U.S. orders will include a flat $10 fee to offset recent increases in shipping costs and tariffs. To learn more details, check U.S. Tariff Policy Change: What You Need to Know.

          2. Expedited Shipping

          We offer expedited shipping service worldwide including islands area. Shipping fees are calculated automatically at checkout based on your location and order weight.

          IMPORTANT: Customers are fully responsible for customs duties, taxes, customs clearance and other costs incurred when choosing expedited shipping. If a shippemnt is returned due to unpaid import fees, return shipping costs will be charged to the customer, and no refunds will be issued for the original order.

          3. Additional Shipping Fee

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

          • Products with large dimensions or weight: Products with large dimensions or weight are excluded from free shipping rule due to carrier dimensional weight calculations. (Including: FPV Goggles, BETAFPV Gates & Flags, RTF FPV Whoop Kits, LiteRadio Series radio transmitter, Storage Cases)
          • Remote countries/regions: Orders shipped to remote countries or regions (e.g., islands, rural areas) may require adjusted shipping fees based on carrier surcharges.
          • Expedited Shipping with Batteries: Expedited Shipping orders containing more than 2 batteries that exceed the limits outlined in our Battery Shipping rule below will incur extra fees to cover separate battery shipments.
          • Reshipping Costs: Packages returned due to incorrect addresses or customs clearance failures (e.g., unpaid duties) will be subject to reshipping fees. Customers must cover these costs before redelivery.

          Shipping Rules

          1. Battery Shipping

          Some countries or remote regions are forbidden to ship stand-alone batteries due to restricted customs and safety regulations. If your location restricts battery shipments, we will notify you promptly and adjust your order accordingly. Review the 2. Countries/Regions Where Battery or Drone Shipping Is Restricted below for details.

          Expedited Shipping Battery Shipping: Stand-alone batteries are prohibited for expedited shipping. However, drones packed with less than or equal to two batteries or devices with bulit-in batteries (e.g., transmitters, goggles) may still qualify for expedited delivery.

          Battery Type

          International Expedited Shipping

          No batteries

          Accepted

          Contained in

          Accepted

          Packed with (no more than 2 batteries)

          Accepted

          Stand-alone

          Prohibited

          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.

          2. Countries/Regions Where Battery or Drone Shipping Is Restricted

          Due to customs regulations and carrier restrictions, we cannot ship drones or batteries to the following destinations:

          • Drones Restricted: Brazil, Saudi Arabia
          • Drones & Batteries Restricted: Armed Forces Europe (APO/FPO/DPO), P.O. Box, Dominican Republic, Maldives
          • Batteries Restricted: South Africa, Cyprus, Cote d'Ivoire, Brunei, India, Argentina, Turkey, Serbia, Iceland, Guadeloupe, Georgia, Belarus, Bosnia and Herzegovina, Montenegro, Saint Barthelemy, Oman, Armenia, Qatar, Costa Rica, Kuwait, Jamaica, Malta, Jersey, New Caledonia, Kyrgyzstan, Burundi, French Guiana, Mauritius, Greenland

          Note: The list is subject to change without prior notice due to evolving customs regulations, carrier restrictions, and local legislation.

          3. Address Requirements

          To ensure successful delivery, please carefully follow these requirements based on your location. Incorrect or incomplete information may cause delays or failed deliveries.

          Japan & Germany: Street name and number, apartment/unit number (if applicable) are required. Omissions are not allowed.

          Australia & United States: Provide the postal code that matches the city, and ensure that the city name is written correctly without any omissions or abbreviations.

          Hong Kong, Macao, Taiwan, and Mainland China: Address must be written in Chinese characters.

          Tax ID Required for Customs Clearance for orders to the following countries:

          • South Korea: Personal Clearance Code
          • Brazil: Cadastro de Pessoas Físicas (CPF)
          • Chile: Tax Identification Number (RUT)
          • India: Aadhaar Card/Pan Card/KYC number
          • Mexico: TAX ID (RFC) / Personal ID (CURP)
          • Indonesia: Nomor Pokok Wajib Pajak (NPWP)

          Delayed Or Rejected Orders Liability

          BETAFPV is not liable for delayed or rejected packages resulting from circumstances beyond our reasonable control. This includes, but is not limited to:

          Delays of shipments to remote regions: Shipping time might be delayed for 3-7 days to remote regions or over 7 days to island destinations like Hawaii, Puerto Rico, Canary Islands, etc.

          Customer-caused delay or delivery failure: These actions include, but are not limited to address changes after shipment, incorrect/incomplete addresses, invalid contact information, and refusal to accept delivery, etc.

          Force majeure: It means 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.

          Packages cannot be delivered to your address during weekends, national holidays, and festivals.

          The 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 corrections are needed, please contact BETAFPV customer support in a timely manner.

          Tracking Your Package

          Once your order ships, you’ll receive a notification email with the tracking number. You can also check your order status by logging into your BETAFPV account dashboard, where shipped orders display tracking links based on your selected shipping method. If your order status shows “Shipped” but no tracking details are visible, this means your package is prepared and awaiting carrier pickup. A status of “Processing” indicates we’ve received your order and are preparing it for shipment.

          Please note that you may receive more than one Shipment Notification E-mail if item(s) from your order are shipping separately.

          You can also enter the tracking number to check your package shipment status below. If you encounter issues tracking your order, contact BETAFPV customer support for assistance.

          FAQ

          1. How long until my order ships?

          All orders typically will be processed within 1-2 working days after your payment. Delays may occur during high order volumes or backorder situations.

          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 active and remember to check the email for updates.

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

          Country selections cannot be modified after checkout. If you need to change these details, please cancel the order and purchase again. Please contact BETAFPV customer support within 24 hours after placing the order if you need to change order product information or address.

          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 and 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.

          4. Under what circumstances will BETAFPV cancel an order unilaterally?

          We reserve the right to cancel orders for:

          • Unavailable product(s): BETAFPV tries to contact customers and does not get a reply in 7 days.
          • High-risk Order(s) identified by banks/Paypal: To ensure your card safety, we will cancel your order.
          • Unshippable destinations: If we are not able to ship to your location, your order will be canceled.

          *BETAFPV reserves the right to update this policy. Last revised May 2025.

          Customer Reviews

          Based on 4 reviews
          75%
          (3)
          0%
          (0)
          0%
          (0)
          0%
          (0)
          25%
          (1)
          J
          JOSE LUIS CANOREA FERNANDEZ
          Perfect seller

          All ok and Very fast delivery. Thanks for all.

          H
          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.

          P
          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.

          M
          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.