F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)
F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)

F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G)

Regular price $39.99 USD Save $0.00 USD

The classical ultralight F4 1S brushless FC comes back with SPI ExpressLRS 2.4G receiver.

Now the default firmware for F4 1S 5A AIO Brushless Flight Controller (ELRS 2.4G) is updated to Betaflight V4.3.0 Official version, which supports ELRS V2.0. Please check the below link to download the firmware.

Download the betaflight_4.3.0_BETAFPVF4SX1280.hex

SPECIFICATIONS OF FC

  • CPU: STM32F411CEU6 (100MHZ)
  • Six-Axis: ICM-20689/MPU-6000
  • Built-in Receiver: SPI ExpressLRS 2.4G
  • Receiver antenna: 2.4GHz SMD ceramic antenna
  • Size: 29mm x 29mm, fully mounting pattern compatible with the whoop frame in the current market
  • Firmware version: betaflight_4.3.0_STM32F411_norevision
  • OSD: Built-in BetaFlight OSD
  • Recommend VTX: >=200mW, like BETAFPV M03 350mW VTX or TBS Unify VTX
  • Power Cable: 55mm, with BT2.0 connector
  • Weight: 3.13g (no power cable included)

SPECIFICATIONS OF ESC

  • Power supply: 1S
  • Current: 5A continuous and peak 6A (3 seconds)
  • Support BLHeliSuite programmable
  • Factory firmware: O_H_5_48_REV16_8.HEX
  • Signal Support: D-shot150, D-shot300, D-shot600, Oneshot125, Multishot, PWM

Something you should know to protect the ESC SMD ceramic antenna.

  • Recommend using BETAFPV Camera Canopy, which reserves sufficient space between Camera and ESC. Therefore, the SMD ceramic antenna will be protected very well.
  • Please make sure there is enough space between the camera and the antenna. If the camera position is too low, it will damage the antenna. So the whole FC should be reversed 180 degrees for installation and all motor positions should be reversed too.
  • The antenna shouldn't be exposed. It will be fragile without canopy protection.

Betaflight Firmware and CLI

Since Betaflight has not yet released the official firmware that could support the SPI ExpressLRS protocol, the current version is the Beta version. Please use the firmware and the CLI dump file below to recover the FC board if needed. Betaflight will update its official target soon. Please feel free to contact us if you have any issues with this Beta version Firmware.

It is normal that there is no option on Betaflight Configurator Receiver. As is shown below, the checkbox is blank.

Please change the “PID loop frequency” to “4KHZ” , sometimes it would make the SPI receiver not working correct while the value is “8KHZ”.

The firmware BTFL_4.3.0_BETAFPVF4SX1280_0265565fa uses external GPIO interrupt triggers to process ELRS data reception, increasing the stability of the signal link. Now it can perfectly support LiteRadio 2 SE 500Hz link and modify the accuracy of signal strength. 

The new CLI file is named BTFL_cli_F4 5A ELRS_NEWPlease check.

Note: This firmware supports only ELRS 1.0.0, 1.0.1, 1.1.0, 1.2.0, 1.2.1.

Download the firmware and CLI dump file for the F4 1S 5A FC (ELRS 2.4G) board.

 

How to Bind with Betaflight FC with SPI ExpressLRS Receiver.

More details and discussion on Github about SPI ELRS receiver.

RECOMMENDED PARTS LIST

DIAGRAM

Larger motor pad for convenience solder directly.

    PACKAGE

    • 1 * F4 1S brushless flight controller (BT2.0 Connector)
    • 4 * M1.2x4mm screws
    • 4 * M1.4x5mm screws
    • 4 * 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.
      • While we cover all taxes and tariffs for Standard Shipping, please be aware that certain countries (including but not limited to India, Brazil, Israel, Argentina, and Turkey) may still impose additional customs fees that are beyond our control. These fees are determined by local regulations and will be the responsibility of the recipient.

      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: Saudi Arabia
      • Drones & Batteries Restricted: Brazil, Israel, Armed Forces Europe (APO/FPO/DPO), P.O. Box, Dominican Republic, Maldives
      • Batteries Restricted: 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, Lebanon, Venezuela, Sri Lanka, Indonesia, U.S. remote islands

      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 17 reviews
      76%
      (13)
      18%
      (3)
      6%
      (1)
      0%
      (0)
      0%
      (0)
      N
      Nick Gauthier
      Great fc

      This fc has been great and reliable. My only request would be that it have larger solder pads for the vtx.

      S
      Sergio Lopez
      5 stars

      Betafpv has great customer service and support buy with confidence thank u for ur great service I’m proud to be part of the betafpv family

      R
      Ruggero Parrotta
      ottima fc

      L'unica nota negativa che per farla funzionare ho dovuto flasciarla di nuovo con 4.3. La Fc mi è arrivata già con Betaflight 4.3 ma non riconosceva Elrs v 2.0.
      Dopo questo piccolo inconveniente mi trovo comunque molto soddisfatto.

      m
      m.s.
      Bought on Amazon, but they will not let me write review!

      Amazon took away my ability to review for no reason, but betaFPV deserves a good review.
      I absolutely LOVE flying this flight controller. The latency when using this ELRS on just my literadio 3 is outstanding. It feels like crashing isn't possible haha!
      I do have one issue with it, and I am not sure if it is the FC or the betafpv MO1vtx camera kit but I cannot get smart audio to work with soft serial RX. I have not tried just soldering the SA wire into the Uart at the top and using it that way but I may go that route. Smart audio comes on and gives the statx no signal failure... but it DOES see the wire.

      Otherwise this thing is SUPER FUN! Runs really nicely on new version of betaflight. The prop wash and stability is excellent with stock filter settings. I am feeling no need to change it.

      A
      AirKhan
      Current Sensor

      The correct current Sensor amp Meter value in Betaflight is 1175 +/- 5 not 179.